SECTION 07100 WATERPROOFING AND MOISTUREPROOFING

WATERPROOFING AND

MOISTURE PROOFING

DECEMBER 2014 PWS CONTRACT NO. 13-40UTIL 07100-1

SECTION 07100

WATERPROOFING AND MOISTUREPROOFING

PART 1 -- GENERAL

1.01 DESCRIPTION

This section specifies waterproofing and moistureproofing of concrete surfaces and

below grade masonry surfaces.

PART 2 -- PRODUCTS

2.01 MATERIALS

A. WATERPROOFING AND MOISTUREPROOFING COATINGS:

Waterproofing and moistureproofing coating shall be PVC lining where shown on the

drawings or epoxy resin. Acceptable epoxy resin products are Tnemec Series 69, Ameron

Amercoat 385, and International Protective Coatings Intergard 670 HS and International

Protective Coatings Intergard 760 HS. Each of these is a polyamidoamine epoxy.

B. WATERPROOFING MEMBRANE:

1. MEMBRANE: Waterproofing membrane shall be Bituthene as

manufactured by W. R. Grace and Company, Jiffy Seal as manufactured by Protecto Wrap Co.,

or equal. Volclay Panels or Bentonize bentonite system are acceptable alternates except where

membrane is required between concrete slabs or where there is concrete over waterproofing

membrane.

2. PROTECTIVE BOARD: Protective board shall be 1/2-inch asphalt

impregnated celotex insulation board.

C. MOISTUREPROOFING UNDERLAY:

1. PLASTIC MEMBRANE: Plastic membrane for moistureproofing

underlay shall be polyethylene film with a thickness of 6 mils.

2. PRESSURE SENSITIVE TAPE: Pressure sensitive tape shall be 2-inch

wide polyethylene tape.

WATERPROOFING AND

MOISTURE PROOFING

07100-2 PWS CONTRACT NO. 13-40UTIL DECEMBER 2014

D. PREFABRICATED DRAINAGE PANEL:

Prefabricated drainage panel shall be CCW MiraDRAIN by Carlisle Coatings &

Waterproofing Inc., or equal.

PART 3 -- EXECUTION

3.01 CONSTRUCTION

A. WATERPROOFING COATING:

1. LOCATION: Waterproofing coating shall be applied to the water side of

walls and bottoms of channels or tanks which are common with rooms, tunnels or galleries to be

occupied by equipment, piping, conduit, or personnel. Waterproofing coating shall be applied to

the earth side of below grade concrete walls.

2. SURFACE PREPARATION: New concrete to be waterproofed shall

have aged at least 28 days and allowed to dry to a moisture content recommended by the coating

manufacturer. Loose concrete and laitance shall be removed from new concrete surfaces by

abrasive blasting. Voids and cracks shall be repaired as specified in Section 03300.

Preparation of concrete shall conform to paragraph 07100-3.01 A.2.

Masonry surfaces shall be allowed to age for at least 28 days. Holes or other joint

defects shall be filled with mortar and repointed. Loose or splattered mortar shall be removed by

scrapping and chipping.

3. APPLICATION: Two or more coats at manufacturer's recommended dry

film thickness. Total dry film thickness shall be minimum 16 mils, final coat shall be black.

Drying time between coats shall be as recommended by the coating manufacturer.

B. MOISTUREPROOFING COATING:

1. LOCATION: Moistureproofing coating shall be applied to the earth side

of concrete or masonry walls which are below grade and are common with rooms, tunnels or

galleries to be occupied by equipment, piping or personnel. Moistureproofing coating is not

required for walls to be provided with waterproofing membrane or for walls that are poured

directly against an excavated surface.

2. SURFACE PREPARATION: Preparation of concrete shall conform to

paragraph 07100-3.01 A.2.

Masonry surfaces shall be allowed to age for at least 28 days. Holes or other joint

defects shall be filled with mortar and repointed. Loose or splattered mortar shall be removed by

scrapping and chipping. Masonry surfaces shall be cleaned with clear water by washing and

WATERPROOFING AND

MOISTURE PROOFING


scrubbing. Muriatic acid shall not be used. After cleaning, masonry surfaces shall be sealed or

filled with sealer or block filler compatible with the specified primer. Sealer or filler shall dry a

minimum of 48 hours prior to application of prime coat.

3. APPLICATION: One or more coats shall be applied at the manufacturer's

recommended dry film thickness. The number of finish coats shall be sufficient to produce a

total dry film thickness of at least 16 mils. Drying time between coats shall be as recommended

by the coating manufacturer.

C. WATERPROOFING MEMBRANE:

1. LOCATION: Waterproofing membrane shall be applied to surfaces as

specified.

2. SURFACE PREPARATION: Concrete surfaces to receive waterproofing

membrane shall be clean, dry and free of voids, spalled areas, loose aggregate, and sharp

protrusions, with no coarse aggregate visible.

3. APPLICATION: Waterproofing membrane shall be applied in accordance

with the manufacturer's recommendations. Surfaces shall be clean and primed prior to

application of the membrane. The manufacturer's representative shall be present during initial

application to certify that the Contractor's procedures comply with manufacturer's specifications.

Pipes or conduits entering structures shall be watertight. The protective board

shall be placed directly against the membrane prior to backfilling. Where the membrane is

turned up from the base of the walls, at angles in walls, and at any other place where the

membrane may be subjected to unusual strain, strips consisting of two additional plies of

membrane shall be applied.

D. MOISTUREPROOFING UNDERLAY:

1. LOCATION: Unless otherwise specified, moistureproofing underlay shall

be provided under concrete floors or floating slabs-on-grade including those deposited on drain

rock.

2. SURFACE PREPARATION: Backfilled surfaces to receive moisture-

proofing underlay shall be leveled off and smoothed over to minimize contact with sharp edges.

3. APPLICATION: At joints, moistureproofing membrane shall be lapped

6 inches and sealed with pressure sensitive tape. Where pipes and conduits pass through the

membrane, they shall be wrapped tightly with separate sheets of membrane which shall then be

sealed with tape to the main membrane. Reinforcing steel or wire mesh shall be supported by

chairs with flat bases to protect the membrane.

WATERPROOFING AND

MOISTURE PROOFING


E. PREFABRICATED DRAINAGE PANEL:

1. LOCATION: Prefabricated drainage panels shall be applied to surfaces as

specified in the contract drawings.

2. SURFACE PREPARATION: Surface preparation, panel adhesion, details

for connection to drainage pipes and other pertinent details shall be per manufacturer

recommendations. Prepared concrete surfaces to receive drainage composite panels shall be

smooth, free of depressions, voids, protrusions, clean and free of other surface contaminants that

may impair the performance of drainage and manufacturer’s warranty requirements.

3. APPLICATION: Drainage panel shall be installed per manufacturer

recommendations, including panel position, adhesion to concrete, connection of adjacent panels,

and all other pertinent details to assure positive drainage of moisture in accordance with the

contract drawings.

** END OF SECTION **

SELF-ADHERING

SHEET WATERPROOFING


SECTION 07131

SELF-ADHERING SHEET WATERPROOFING

PART 1 – GENERAL

1.01 RELATED DOCUMENTS

Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

1.02 SUMMARY

This Section includes the following:

1. Modified bituminous sheet waterproofing.

2. Molded-sheet drainage panels.

Related Sections include the following:

1. Division 3 Section “Cast-in-Place Concrete” for concrete topping over wa-

terproof membrane.

2. Division 7 Section "Joint Sealants" for joint-sealant materials and installa-

tion.

1.03 SUBMITTALS

A. PRODUCT DATA:

Include manufacturer's written instructions for evaluating, preparing, and treating sub-

strate, technical data, and tested physical and performance properties of waterproofing.

B. SHOP DRAWINGS:

Show locations and extent of waterproofing. Include details for substrate joints and

cracks, sheet flashings, penetrations, inside and outside corners, tie-ins with adjoining water-

proofing, and other termination conditions.

C. SAMPLES:

For the following products:

1. 12-by-12-inch square of waterproofing and flashing sheet.

2. 4-by-4-inch square of drainage panel.

SELF-ADHERING

SHEET WATERPROOFING


D. INSTALLER CERTIFICATES:

Signed by manufacturers certifying that installers comply with requirements.

E. PRODUCT TEST REPORTS:

Based on evaluation of comprehensive tests performed by a qualified testing agency, for

waterproofing.

F. WARRANTIES:

Special warranties specified in this Section.

1.04 QUALITY ASSURANCE

A. INSTALLER QUALIFICATIONS:

A firm that is licensed by waterproofing manufacturer for installation of waterproofing

required for this Project.

B. SOURCE LIMITATIONS:

Obtain waterproofing materials, protection course, and molded-sheet drainage panels

through one source from a single manufacturer.

C. PREINSTALLATION CONFERENCE:

Conduct conference at Project site.

Review waterproofing requirements including surface preparation, substrate condition

and pretreatment, minimum curing period, forecasted weather conditions, special details and

sheet flashings, installation procedures, testing and inspection procedures, and protection and

repairs.

1.05 DELIVERY, STORAGE, AND HANDLING

Deliver liquid materials to Project site in original packages with seals unbroken, labeled

with manufacturer's name, product brand name and type, date of manufacture, and directions for

storing and mixing with other components.

Store liquid materials in their original undamaged packages in a clean, dry, protected lo-

cation and within temperature range required by waterproofing manufacturer.

Remove and replace liquid materials that cannot be applied within their stated shelf life.

Store rolls according to manufacturer's written instructions.

SELF-ADHERING

SHEET WATERPROOFING


Protect stored materials from direct sunlight.

1.06 PROJECT CONDITIONS

A. ENVIRONMENTAL LIMITATIONS:

Apply waterproofing within the range of ambient and substrate temperatures recom-

mended by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate.

Do not apply waterproofing in snow, rain, fog, or mist.

Maintain adequate ventilation during preparation and application of waterproofing mate-

rials.

1.07 WARRANTY

A. SPECIAL MANUFACTURER'S WARRANTY:

Manufacturer's standard form in which manufacturer agrees to replace waterproofing ma-

terial that does not comply with requirements or that fails to remain watertight within specified

warranty period.

1. Failure includes, but is not limited to, failure of waterproofing due to fail-

ure of substrate prepared and treated according to requirements or for-

mation of new joints and cracks in substrate exceeding 1/16 inch in width.

2. Warranty Period: Ten years from date of Substantial Completion.

B. SPECIAL INSTALLER'S WARRANTY:

Specified form, on warranty form at end of this Section, signed by Installer, covering

Work of this Section, for warranty period of five years.

Warranty includes removing and reinstalling protection board, drainage panels, and con-

crete topping slab.

PART 2 – PRODUCTS

2.01 MODIFIED BITUMINOUS SHEET WATERPROOFING

A. MODIFIED BITUMINOUS SHEET:

60-mil- thick, self-adhering sheet consisting of 56 mils of rubberized asphalt laminated to

a 4-mil- thick, polyethylene film with release liner on adhesive side.

SELF-ADHERING

SHEET WATERPROOFING


1. PRODUCTS: Subject to compliance with requirements, provide one of

the following:

a. Meadows, W. R., Inc.; SealTight Mel-Rol.

b. American Hydrotech, Inc.; VM 75.

c. Carlisle Coatings & Waterproofing Inc.; CCW MiraDRI 860/861.

c. Grace, W. R. & Co.; Bituthene 3000 or 4000.

e. Or equal.

2. PHYSICAL PROPERTIES:

a. TENSILE STRENGTH: 250 psi minimum; ASTM D 412, Die C,

modified.

b. ULTIMATE ELONGATION: 300 percent minimum; ASTM D 412,

Die C, modified.

c. LOW-TEMPERATURE FLEXIBILITY: Pass at minus 20 deg F;

ASTM D 1970.

d. CRACK CYCLING: Unaffected after 100 cycles of 1/8-inch move-

ment; ASTM C 836.

e. PUNCTURE RESISTANCE: 40 lbf minimum; ASTM E 154.

f., HYDROSTATIC-HEAD RESISTANCE: 150 feet minimum;

ASTM D 5385.

g. WATER ABSORPTION: 0.15 percent weight-gain maximum after

48-hour immersion at 70 deg F; ASTM D 570.

h. VAPOR PERMEANCE: 0.05 perms; ASTM E 96, Water Method.

2.02 AUXILIARY MATERIALS

A. GENERAL:

Furnish auxiliary materials recommended by waterproofing manufacturer for intended

use and compatible with sheet waterproofing.

Furnish liquid-type auxiliary materials that comply with VOC limits of authorities having

jurisdiction.

B. PRIMER:

Liquid solvent-borne primer recommended for substrate by manufacturer of sheet water-

proofing material.

SELF-ADHERING

SHEET WATERPROOFING


C. SURFACE CONDITIONER:

Liquid, waterborne surface conditioner recommended for substrate by manufacturer of

sheet waterproofing material.

D. LIQUID MEMBRANE:

Elastomeric, two-component liquid, cold fluid applied, trowel grade or low viscosity.

E. SUBSTRATE PATCHING MEMBRANE:

Low-viscosity, two-component, asphalt-modified coating.

F. SHEET STRIPS:

Self-adhering, rubberized-asphalt sheet strips of same material and thickness as sheet wa-

terproofing.

G. MASTIC, ADHESIVES, AND TAPE:

Liquid mastic and adhesives, and adhesive tapes recommended by waterproofing manu-

facturer.

1. DETAIL TAPE: Two-sided, pressure-sensitive, self-adhering reinforced

tape, 4-1/2 inches wide, with a tack-free protective adhesive coating on one side and release film

on self-adhering side.

H. METAL TERMINATION BARS:

Aluminum bars, approximately 1 by 1/8 inch thick, predrilled at 9-inch centers.

I. PROTECTION COURSE:

ASTM D 6506, semirigid sheets of fiberglass or mineral-reinforced-asphaltic core, pres-

sure laminated between two asphalt-saturated fibrous liners and as follows:

1. THICKNESS: 1/8 inch, nominal, for vertical applications; 1/4 inch, nom-

inal, elsewhere.

2. ADHESIVE: Rubber-based solvent type recommended by waterproofing

manufacturer for type of protection course.

J. PROTECTION COURSE:

Fan folded, with a core of extruded-polystyrene board insulation faced one side or both

sides with plastic film, nominal thickness 1/4 inch, with compressive strength of not less than 8

psi per ASTM D 1621, and maximum water absorption by volume of 0.6 percent per

ASTM C 272.

SELF-ADHERING

SHEET WATERPROOFING


K. PROTECTION COURSE:

Unfaced, fan-folded, extruded-polystyrene board insulation, nominal thickness 1/4 inch

with compressive strength of not less than 8 psi per ASTM D 1621.

L. PROTECTION COURSE:

Extruded-polystyrene board insulation, unfaced, ASTM C 578, Type X, 1/2 inch thick.

M. PROTECTION COURSE:

Molded-polystyrene board insulation, ASTM C 578, Type I, 0.90-lb/cu. ft. minimum

density, 1-inch minimum thickness.

2.03 MOLDED-SHEET DRAINAGE PANELS

A. NONWOVEN-GEOTEXTILE-FACED, MOLDED-SHEET DRAINAGE

PANEL:

Manufactured composite subsurface drainage panels consisting of a nonwoven, needle-

punched geotextile facing with an apparent opening size not exceeding No. 70 sieve laminated to

1 side and a polymeric film bonded to the other side of a 3-dimensional, nonbiodegradable,

molded-plastic-sheet drainage core, with a vertical flow rate of 9 to 15 gpm per ft.

1. PRODUCTS: Subject to compliance with requirements, provide one of

the following:

a. Meadows, W. R., Inc.; SealTight Mel-Drain

b. Or equal.

PART 3 – EXECUTION

3.01 EXAMINATION

Examine substrates, areas, and conditions, with Installer present, for compliance with re-

quirements and other conditions affecting performance.

Verify that concrete has cured and aged for minimum time period recommended by wa-

terproofing manufacturer.

Verify that concrete is visibly dry and free of moisture. Test for capillary moisture by

plastic sheet method according to ASTM D 4263.

Verify that compacted subgrade is dry, smooth, and sound; and ready to receive adhe-

sive-coated HDPE sheet.

SELF-ADHERING

SHEET WATERPROOFING


Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 SURFACE PREPARATION

Clean, prepare, and treat substrates according to manufacturer's written instructions.

Provide clean, dust-free, and dry substrates for waterproofing application.

Mask off adjoining surfaces not receiving waterproofing to prevent spillage and over-

spray affecting other construction.

Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other

penetrating contaminants or film-forming coatings from concrete.

Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pock-

ets, holes, and other voids.

Prepare, fill, prime, and treat joints and cracks in substrates. Remove dust and dirt from

joints and cracks according to ASTM D 4258.

Install sheet strips and center over treated construction and contraction joints and cracks

exceeding a width of 1/16 inch.

Bridge and cover isolation joints expansion joints and discontinuous deck-to-wall and

deck-to-deck joints with overlapping sheet strips.

Invert and loosely lay first sheet strip over center of joint. Firmly adhere second sheet

strip to first and overlap to substrate.

A. CORNERS:

Prepare, prime, and treat inside and outside corners according to ASTM D 6135.

Install membrane strips centered over vertical inside corners. Install 3/4-inch fillets of

liquid membrane on horizontal inside corners and as follows:

1. At footing-to-wall intersections, extend liquid membrane each direction

from corner or install membrane strip centered over corner.

2. At roof deck-to-wall intersections, extend liquid membrane or sheet strips

onto deck waterproofing and to finished height of sheet flashing.

Prepare, treat, and seal vertical and horizontal surfaces at terminations and penetrations

through waterproofing and at drains and protrusions according to ASTM D 6135.

3.03 MODIFIED BITUMINOUS SHEET WATERPROOFING APPLICATION

Install modified bituminous sheets according to waterproofing manufacturer's written in-

structions and according to recommendations in ASTM D 6135.

SELF-ADHERING

SHEET WATERPROOFING


Apply primer to substrates at required rate and allow to dry. Limit priming to areas that

will be covered by sheet waterproofing in same day. Reprime areas exposed for more than 24

hours.

Apply and firmly adhere sheets over area to receive waterproofing. Accurately align

sheets and maintain uniform 2-1/2-inch- minimum lap widths and end laps. Overlap and seal

seams and stagger end laps to ensure watertight installation.

When ambient and substrate temperatures range between 25 and 40 deg F, install self-

adhering, modified bituminous sheets produced for low-temperature application. Do not use

low-temperature sheets if ambient or substrate temperature is higher than 60 deg F.

A. HORIZONTAL APPLICATION:

Apply sheets from low point to high point of decks to ensure that side laps shed water.

Apply continuous sheets over sheet strips bridging substrate cracks, construction, and

contraction joints.

Seal exposed edges of sheets at terminations not concealed by metal counterflashings or

ending in reglets with mastic.

Install sheet waterproofing and auxiliary materials to tie into adjacent waterproofing.

Repair tears, voids, and lapped seams in waterproofing not complying with requirements.

Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending 6 inches be-

yond repaired areas in all directions.

Install protection course with butted joints over waterproofing membrane immediately.

Molded-sheet drainage panels may be used in place of a separate protection course to ver-

tical applications when approved by waterproofing manufacturer and installed immediately.

Correct deficiencies in or remove sheet waterproofing that does not comply with re-

quirements; repair substrates, reapply waterproofing, and repair sheet flashings.

3.04 MOLDED-SHEET DRAINAGE PANEL INSTALLATION

Place and secure molded-sheet drainage panels, with geotextile facing away from wall or

deck substrate, according to manufacturer's written instructions. Use adhesives that do not pene-

trate waterproofing. Lap edges and ends of geotextile to maintain continuity. Protect installed

molded-sheet drainage panels during subsequent construction.

For vertical applications, install protection course before installing drainage panels.

SELF-ADHERING

SHEET WATERPROOFING


3.05 FIELD QUALITY CONTROL

Engage a full-time site representative qualified by waterproofing membrane manufacturer

to inspect substrate conditions; surface preparation; membrane application, flashings, protection,

and drainage components; and to furnish daily reports to Architect.

A. FLOOD TESTING:

Flood test each deck area for leaks, according to recommendations in ASTM D 5957, af-

ter completing waterproofing but before overlying construction is placed. Install temporary con-

tainment assemblies, plug or dam drains, and flood with potable water.

Flood to an average depth of 2-1/2 inches with a minimum depth of 1 inch and not ex-

ceeding a depth of 4 inches. Maintain 2 inches of clearance from top of sheet flashings.

Flood each area for 48 hours.

After flood testing, repair leaks, repeat flood tests, and make further repairs until water-

proofing installation is watertight.

Engage an independent testing agency to observe flood testing and examine underside of

decks and terminations for evidence of leaks during flood testing.

3.06 PROTECTION AND CLEANING

Do not permit foot or vehicular traffic on unprotected membrane.

Protect waterproofing from damage and wear during remainder of construction period.

Clean spillage and soiling from adjacent construction using cleaning agents and proce-

dures recommended by manufacturer of affected construction.

3.07 WATERPROOFING INSTALLER'S WARRANTY

WHEREAS <Insert name> of <Insert address>, herein called the "Waterproofing In-

staller," has performed waterproofing and associated work ("work") on the following project:

1. Owner: <Insert name of Owner.>

2. Address: <Insert address.>

3. Building Name/Type: <Insert information.>

4. Address: <Insert address.>

5. Area of Work: <Insert information.>

6. Acceptance Date: <Insert date.>

7. Warranty Period: <Insert time.>

8. Expiration Date: <Insert date.>

SELF-ADHERING

SHEET WATERPROOFING


AND WHEREAS Waterproofing Installer has contracted (either directly with Owner or

indirectly as a subcontractor) to warrant said work against leaks and faulty or defective materials

and workmanship for designated Warranty Period,

NOW THEREFORE Waterproofing Installer hereby warrants, subject to terms and con-

ditions herein set forth, that during Warranty Period he will, at his own cost and expense, make

or cause to be made such repairs to or replacements of said work as are necessary to correct

faulty and defective work and as are necessary to maintain said work in a watertight condition.

This Warranty is made subject to the following terms and conditions:

1. Specifically excluded from this Warranty are damages to work and other

parts of the building, and to building contents, caused by:

a. fire;

b. failure of waterproofing system substrate, including cracking, set-

tlement, excessive deflection, deterioration, and decomposition;

c. faulty construction of walls and other edge conditions and penetra-

tions of the work;

d. activity on waterproofing by others, including construction con-

tractors, maintenance personnel, other persons, and animals,

whether authorized or unauthorized by Owner.

2. When work has been damaged by any of foregoing causes, Warranty shall

be null and void until such damage has been repaired by Waterproofing

Installer and until cost and expense thereof have been paid by Owner or by

another responsible party so designated.

3. Waterproofing Installer is responsible for damage to work covered by this

Warranty but is not liable for consequential damages to building or build-

ing contents resulting from leaks or faults or defects of work.

4. During Warranty Period, if Owner allows alteration of work by anyone

other than Waterproofing Installer, including cutting, patching, and

maintenance in connection with penetrations, attachment of other work,

and positioning of anything on roof, this Warranty shall become null and

void on date of said alterations, but only to the extent said alterations af-

fect work covered by this Warranty. If Owner engages Waterproofing In-

staller to perform said alterations, Warranty shall not become null and

void unless Waterproofing Installer, before starting said work, shall have

notified Owner in writing, showing reasonable cause for claim, that said

alterations would likely damage or deteriorate work, thereby reasonably

justifying a limitation or termination of this Warranty.

SELF-ADHERING

SHEET WATERPROOFING


5. During Warranty Period, if original use of roof is changed and it becomes

used for, but was not originally specified for, a promenade, work deck,

spray-cooled surface, flooded basin, or other use or service more severe

than originally specified, this Warranty shall become null and void on date

of said change, but only to the extent said change affects work covered by

this Warranty.

6. Owner shall promptly notify Waterproofing Installer of observed, known,

or suspected leaks, defects, or deterioration and shall afford reasonable

opportunity for Waterproofing Installer to inspect work and to examine

evidence of such leaks, defects, or deterioration.

7. This Warranty is recognized to be the only warranty of Waterproofing In-

staller on said work and shall not operate to restrict or cut off Owner from

other remedies and resources lawfully available to Owner in cases of Wa-

terproofing failure. Specifically, this Warranty shall not operate to relieve

Waterproofing Installer of responsibility for performance of original work

according to requirements of the Contract Documents, regardless of

whether Contract was a contract directly with Owner or a subcontract with

Owner's General Contractor.

IN WITNESS THEREOF, this instrument has been duly executed this <Insert day> day

of <Insert month>, <Insert year>.

1. Authorized Signature: <Insert signature.>

2. Name: <Insert name.>

3. Title: <Insert title.>

**END OF SECTION**

SELF-ADHERING

SHEET WATERPROOFING


THIS PAGE LEFT INTENTIONALLY BLANK

WATER REPELLANTS


SECTION 07190

WATER REPELLENTS

PART 1 – GENERAL




1.02 SUMMARY

This Section includes clear penetrating water-repellent coatings for the following vertical

and horizontal surfaces:

1. Concrete (unpainted).

2. Concrete unit masonry (unpainted and unglazed).


1. Division 3 Sections "Cast-in-Place Concrete," for curing compounds, cur-

ing and sealing compounds, and penetrating liquid floor treatments.

2. Division 4 Section "Unit Masonry Assemblies"

3. Division 7 Section "Joint Sealants."

4. Division 9 painting Sections for paints and coatings.

A. ALTERNATES:

Refer to Division 1 Section "Alternates" for description of Work in this Section affected

by alternates.

1.03 SUBMITTALS

A. PRODUCT DATA:

For each type of product indicated.

1. Include manufacturer's printed statement of VOC content.

2. Include manufacturer's standard colors.

WATER REPELLANTS


B. SAMPLES:

For each type of water repellent and substrate indicated, 12 by 12 inches in size, with

specified water-repellent treatment applied to half of each Sample.

C. MANUFACTURER CERTIFICATES:

Signed by manufacturers certifying that water repellents comply with requirements.

D. QUALIFICATION DATA:

For Installer.

E. PRODUCT TEST REPORTS:


assemblies.

F. WARRANTY:

Special warranty specified in this Section.



An employer of workers trained and approved by manufacturer.

B. TEST APPLICATION:

Apply a finish sample for each type of water repellent and substrate required. Duplicate

finish of approved sample.

1. Locate each test application as directed by Architect.

2. Size: 25 sq. ft..

3. Final approval by Architect of water-repellent application will be from test

applications.

WATER REPELLANTS



A. LIMITATIONS:

Proceed with application only when the following existing and forecasted weather and

substrate conditions permit water repellents to be applied according to manufacturers' written

instructions and warranty requirements:

1. Ambient temperature is above 40 deg F.

2. Concrete surfaces and mortar have cured for more than 28 days.

3. Concrete or masonry walls are not treated prior to 30 days after building

close-in.

4. Rain or snow is not predicted within 24 hours.

5. Application proceeds more than 24 hours after surfaces have been wet.

6. Substrate is not frozen, or surface temperature is above 40 deg F.

7. Windy conditions do not exist that may cause water repellent to be blown

onto vegetation or surfaces not intended to be treated.

1.06 WARRANTY

A. SPECIAL WARRANTY:

Manufacturer's standard form in which manufacturer and Applicator agree(s) to repair or

replace materials that fail to maintain water repellency specified in Part 1 "Performance Re-

quirements" Article within specified warranty period.

1. WARRANTY PERIOD: Five years from date of Substantial Completion.

PART 2 – PRODUCTS

2.01 MANUFACTURERS

A. PRODUCTS:

Subject to compliance with requirements, provide one of the products listed in other

Part 2 articles.

WATER REPELLANTS


2.02 CONCRETE PENETRATING WATER REPELLENTS

A. SILANE, PENETRATING WATER REPELLENT:

Clear, monomeric compound containing 20 percent or more solids of alkyltrial-

koxysilanes; with alcohol, mineral spirits, water, or other proprietary solvent carrier; and with

3.3 lb/gal. or less of VOCs.

1. PRODUCTS::

a. Evonik Degussa Corporation; Protectosil BHN

b. Or equal.

2.03 WATER REPELLENT SEALER FOR CMU

A. PRODUCT:

Evonik Degussa Corporation; Protectosil Aqua-trete


3.01 PREPARATION

Clean substrate of substances that might interfere with penetration or performance of wa-

ter repellents. Test for moisture content, according to water-repellent manufacturer's written in-

structions, to ensure that surface is dry enough.

1. CAST-IN-PLACE CONCRETE: Remove oil, curing compounds, laitance,

and other substances that could prevent adhesion or penetration of water repellents.

Test for pH level, according to water-repellent manufacturer's written instructions, to en-

sure chemical bond to silicate minerals.

Protect adjoining work, including sealant bond surfaces, from spillage or blow-over of

water repellent. Cover adjoining and nearby surfaces of aluminum and glass if there is the pos-

sibility of water repellent being deposited on surfaces. Cover live plants and grass.

A. COORDINATION WITH SEALANTS:

Do not apply water repellent until sealants for joints adjacent to surfaces receiving water-

repellent treatment have been installed and cured.

Water-repellent work may precede sealant application only if sealant adhesion and com-

patibility have been tested and verified using substrate, water repellent, and sealant materials

identical to those used in the work.

WATER REPELLANTS



3.02 APPLICATION

A. MANUFACTURER'S FIELD SERVICE:

Engage a factory-authorized service representative to inspect the substrate before applica-

tion of water repellent and to instruct Applicator on the product and application method to be

used.

Apply a heavy-saturation spray coating of water repellent on surfaces indicated for treat-

ment using low-pressure spray equipment. Comply with manufacturer's written instructions for

using airless spraying procedure, unless otherwise indicated.

Apply a second saturation spray coating, repeating first application. Comply with manu-

facturer's written instructions for limitations on drying time between coats and after rainstorm

wetting of surfaces between coats. Consult manufacturer's technical representative if written in-

structions are not applicable to Project conditions.

3.03 CLEANING

Immediately clean water repellent from adjoining surfaces and surfaces soiled or dam-

aged by water-repellent application as work progresses. Repair damage caused by water-

repellent application. Comply with manufacturer's written cleaning instructions.

**END OF SECTION**

WATER REPELLANTS


THIS PAGE INTENTIONALLY LEFT BLANK

THERMAL INSULATION


SECTION 07210

THERMAL INSULATION

PART 1 – GENERAL




1.02 SUMMARY

A. SECTION INCLUDES:

1. Mineral-wool board insulation.

2. Glass-fiber blanket insulation.

3. Mineral-wool blanket insulation.

4. Vapor retarders.

B. RELATED SECTIONS:

1. Division 07 Section(s) "Polyvinyl-Chloride (PVC) Roofing" for insulation

specified as part of roofing construction.

2. Division 07 Section "Fire-Resistive Joint Systems" for insulation installed

as part of a perimeter fire-resistive joint system.

3. Division 09 Section(s) "Gypsum Board Shaft Wall Assemblies" for instal-

lation in metal-framed assemblies of insulation specified by referencing

this Section.

1.03 SUBMITTALS

A. PRODUCT DATA:


B. PRODUCT TEST REPORTS:


each product.

THERMAL INSULATION



A. SURFACE-BURNING CHARACTERISTICS:

As determined by testing identical products according to ASTM E 84 by a qualified test-

ing agency. Identify products with appropriate markings of applicable testing agency.


Protect insulation materials from physical damage and from deterioration due to mois-

ture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's

written instructions for handling, storing, and protecting during installation.

PART 2 – PRODUCTS

2.01 MINERAL-WOOL BLANKET INSULATION

A. MANUFACTURERS:

Subject to compliance with requirements, provide products by one of the following:

1. Owens Corning.

2. Thermafiber.

B. UNFACED, MINERAL-WOOL BLANKET INSULATION:

ASTM C 665, Type I (blankets without membrane facing); consisting of fibers; with

maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per

ASTM E 84; passing ASTM E 136 for combustion characteristics.

2.02 VAPOR RETARDERS

A. FOIL-POLYESTER-FILM VAPOR RETARDERS:

Two layers of 0.5-mil- thick polyester film laminated to an inner layer of 1-mil- thick

aluminum foil, with maximum water-vapor transmission rate in flat condition of 0.0 g/h x sq. m

and with maximum flame-spread and smoke-developed indexes of 5, per ASTM E 84.

1. PRODUCTS: Subject to compliance with requirements, provide the fol-

lowing:

a. Alumiseal Corporation; Zero Perm Vapor Barrier.

b. Or Approved Equal.

THERMAL INSULATION


B. VAPOR-RETARDER TAPE:

Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing

joints and penetrations in vapor retarder.

C. ADHESIVE FOR VAPOR RETARDERS:

Product recommended by vapor-retarder manufacturer and has demonstrated capability to

bond vapor retarders securely to substrates indicated.


3.01 PREPARATION

Clean substrates of substances that are harmful to insulation or vapor retarders, including

removing projections capable of puncturing vapor retarders, or that interfere with insulation at-

tachment.

3.02 INSTALLATION, GENERAL

Comply with insulation manufacturer's written instructions applicable to products and

applications indicated.

Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed

to ice, rain, or snow at any time.

Extend insulation to envelop entire area to be insulated. Cut and fit tightly around ob-

structions and fill voids with insulation. Remove projections that interfere with placement.

Provide sizes to fit applications indicated and selected from manufacturer's standard

thicknesses, widths, and lengths. Apply single layer of insulation units to produce thickness in-

dicated unless multiple layers are otherwise shown or required to make up total thickness.

3.03 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION

Apply insulation units to substrates by method indicated, complying with manufacturer's

written instructions. If no specific method is indicated, bond units to substrate with adhesive or

use mechanical anchorage to provide permanent placement and support of units.

A. GLASS-FIBER OR MINERAL-WOOL BLANKET INSULATION:

Install in cavities formed by framing members according to the following requirements:

THERMAL INSULATION


1. Use insulation widths and lengths that fill the cavities formed by framing

members. If more than one length is required to fill the cavities, provide

lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a fric-

tion fit between edges of insulation and adjoining framing members.

3. Maintain 3-inch clearance of insulation around recessed lighting fixtures

not rated for or protected from contact with insulation.

4. For metal-framed wall cavities where cavity heights exceed 96 inches,

support unfaced blankets mechanically and support faced blankets by tap-

ing flanges of insulation to flanges of metal studs.

5. Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-

retarder facings, and seal each continuous area of insulation to ensure air-

tight installation.

a. Exterior Walls: Set units with facing placed toward exterior of

construction, interior of construction, or as indicated on Drawings.

b. Interior Walls: Set units with facing placed toward areas of high

humidity.

3.04 INSTALLATION OF INSULATION IN CEILINGS FOR SOUND ATTENUATION

Where glass-fiber blankets are indicated for sound attenuation above ceilings, install

blanket insulation over entire ceiling area in thicknesses indicated. Extend insulation 48 inches

up either side of partitions.

3.05 INSTALLATION OF VAPOR RETARDERS

Place vapor retarders on side of construction indicated on Drawings. Extend vapor re-

tarders to extremities of areas to protect from vapor transmission. Secure vapor retarders in

place with adhesives or other anchorage system as indicated. Extend vapor retarders to cover

miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation.

Seal vertical joints in vapor retarders over framing by lapping no fewer than two studs.

1. Firmly attach vapor retarders to metal framing and solid substrates with

vapor-retarder fasteners as recommended by vapor-retarder manufacturer.

Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating va-

por retarders with vapor-retarder tape to create an airtight seal between penetrating objects and

vapor retarders.

THERMAL INSULATION


Repair tears or punctures in vapor retarders immediately before concealment by other

work. Cover with vapor-retarder tape or another layer of vapor retarders.

3.06 PROTECTION

Protect installed insulation and vapor retarders from damage due to harmful weather ex-

posures, physical abuse, and other causes. Provide temporary coverings or enclosures where in-

sulation is subject to abuse and cannot be concealed and protected by permanent construction

immediately after installation.

**END OF SECTION**

THERMAL INSULATION



SELF-ADHERING AIR

AND VAPOR BARRIER


SECTION 07270

SELF-ADHERING AIR AND VAPOR BARRIER

PART 1- GENERAL




1.02 SECTION INCLUDES

This Section specifies a water-resistant self-adhering sheet air and vapor barrier in exteri-

or wall assemblies.

Related Work in other Sections include the following:

1. Division 03, Section “Cast-In-Place Concrete” for requirement that back-

up concrete be free of fins, protrusions and large holes.

2. Division 06, Section “Sheathing” for requirement that backup gypsum

sheathing has been installed with damaged corners repaired, joints filled

and surface flush with compatible material as acceptable to the self-

adhering air and vapor barrier manufacturer; requirement for gap at deflec-

tion joints and fillers.

3. Division 07, Section “Polyvinyl-Chloride (PVC) Roofing” for requirement

for coordination with sequencing of membrane roofing; requirement to

seal roof membrane to wall air and vapor barrier.

1.03 PERFORMANCE REQUIREMENTS

A. MATERIAL PERFORMANCE:

Provide materials which have an air permeance not to exceed 0.004 cubic feet per minute

per square foot under a pressure differential of 0.3 in. water (1.57 pounds per square foot) (0.02

liters per second per square meter at 75 Pascals) when tested according to ASTM E 2178, and a

vapor permeance of 0.1 perms or less when tested according to ASTM E 96.

SELF-ADHERING AIR

AND VAPOR BARRIER


B. CONNECTIONS TO ADJACENT MATERIALS:

Provide connections to prevent air leakage and vapor migration at the following loca-

tions:

1. Foundation and walls, including penetrations, ties and anchors.

2. Walls, windows, louvers or doors.

3. Different wall assemblies, and fixed openings within those assemblies.

4. Wall and roof connections.

5. Floors over unconditioned space.

6. Walls, floor and roof across construction, control and expansion joints.

7. Walls, floors and roof to utility, pipe and duct penetrations.

8. Seismic and expansion joints.

9. All other leakage pathways in the building envelope.

1.04 SUBMITTALS

A. SUBMITTALS:

Submit in accordance with Division 01 requirements.

B. QUALITY ASSURANCE PROGRAM:

Submit evidence of current accreditation and certification under the Air Barrier Associa-

tion of America’s (ABAA) Quality Assurance Program. Submit accreditation number of con-

tractor and certification number of installers.

C. PRODUCT DATA:

Submit manufacturer’s product data, manufacturer’s printed instructions for evaluation,

preparing, and treating substrate, temperature and other limitations of installation conditions,

technical data, and tested physical and performance properties.

1. Submit letter from primary materials manufacturer indicating approval of

products not manufactured by primary manufacturer.

2. Include statement that materials are compatible with adjacent materials

proposed for use.

3. Submit reports indicating that field peel-adhesion test on all materials to

which sealants are adhered have been performed and the changes made, if

required, to other approved materials, in order to achieve successful adhe-

sion.

SELF-ADHERING AIR

AND VAPOR BARRIER


D. SAMPLES:

Submit clearly labeled samples, 3 or 4 inch (75 mm by 100mm) minimum size of each

materials specified.

E. SHOP DRAWINGS OF MOCK-UP:

Submit shop drawings of proposed mock-ups showing plans, elevations, large-scale de-

tails, and connections to the test apparatus.

F. FIELD TEST RESULTS OF MOCK-UP:

Submit test results of air leakage test and water leakage test of mock-up in accordance

with specified standards, including retesting if initial results are not satisfactory.

G. SHOP DRAWINGS:

Submit shop drawings showing locations and extent of air and vapor barrier assemblies

and details of all typical conditions, intersections with other envelope assemblies and materials,

membrane counter-flashing, and details showing how gaps in the construction will be bridged,

how inside and outside corner are negotiated, how materials that cover the air and vapor barrier

are secured with air-tight condition maintained, and how miscellaneous penetrations such as

conduits, pipes, electric boxes and similar items are sealed.

1. Include VOC content of each material, and applicable legal limit in the ju-

risdiction of the project.

2. Include statement that materials are compatible with adjacent materials

proposed for use.

3. Include recommended values for field adhesion test on each substrate.

H. COMPATIBILITY:

Submit letter from manufacturer stating that materials proposed for use are permanently

chemically compatible and adhesively compatible with adjacent materials proposed for use.

Submit letter from manufacturer stating that cleaning materials used during installation are

chemically compatible with adjacent materials proposed for use.


A. AIR BARRIER CONTRACTOR QUALIFICATIONS:

Currently accredited by the Air Barrier Association of America (ABAA) whose applica-

tors are certified in accordance with the ABAA Quality Assurance Program.

SELF-ADHERING AIR

AND VAPOR BARRIER


B. MANUFACTURER:

Obtain primary materials from a single manufacturer regularly engaged in manufacturing

air vapor barrier membranes. Obtain secondary materials from a source acceptable to the prima-

ry materials manufacturer.

C. ACCREDITED LABORATORY TESTING FOR MATERIALS:

Laboratory accredited by International Accreditation Service Inc. (IAS), American Asso-

ciation for Laboratory Accreditation (A2LA), or the Standards Council of Canada (SCC).

D. VOC REGULATIONS:

Provide products which comply with applicable regulations controlling the use of volatile

organic compounds.

E. PRECONSTRUCTION MEETING:

Convene a minimum of two weeks prior to commencing Work of this Section. Agenda

shall include, at a minimum, construction and testing of mock-up, sequence of construction, co-

ordination with substrate preparation, materials approved for use, compatibility of materials, co-

ordination with installation of adjacent and covering materials, and details of construction. At-

tendance is required by representatives of related trades including covering materials, substrate

materials and adjacent materials.

F. FIELD QUALITY ASSURANCE:

Implement the ABAA Quality Assurance Program requirements. Cooperate with ABAA

inspectors and independent testing and inspection agencies engaged by the Owner. Do not cover

air and vapor barrier membrane until it has been inspected, tested and accepted.

G. MOCK-UPS:

Build mock-up representative of primary exterior wall assemblies and glazing assemblies

including backup wall and typical penetrations as acceptable to the Architect. Mock-up shall be

approximately 8 feet long by 8 feet high and include all components in the exterior wall assem-

bly.

H. MOCK-UP TESTS FOR AIR AND WATER INFILTRATION:

Test mock-up for air and water infiltration in accordance with ASTM E 1186 (air leakage

location), ASTM E 783 (air leakage quantification), and ASTM E 1105 (water penetration). Use

smoke tracer to locate sources of air leakage. If deficiencies are found, reconstruct mock-up and

retest until satisfactory results are obtained. Deficiencies include air leakage beyond values

specified, uncontrolled water leakage, unsatisfactory workmanship.

SELF-ADHERING AIR

AND VAPOR BARRIER


Perform the air leakage tests and water penetration test of mock-up prior to installation of

cladding and trim but after installation of all fasteners for cladding and trim and after installation

of other penetrating elements.

I. MOCK-UP TESTS FOR MEMBRANE ADHESION:

Test mock-up of membrane for adhesion in accordance with ASTM D 4541 using a Type

1 pull tester except that the disk used shall be 100mm in diameter and the membrane shall be cut

through to separate the material attached to the disk from the surrounding material. Perform test

after curing period recommended by the manufacturer. Record mode of failure and area which

failed in accordance with ASTM D 4541. When the air barrier materials manufacturer has estab-

lished a minimum adhesion level for the product on the particular substrate, the inspection report

shall indicate whether this requirement has been met. Where the manufacturer has not declared a

minimum adhesion value for their produce/substrate combination, then the inspector shall simply

record the value.


Deliver materials to Project site in original packages with seals unbroken, labeled with

manufacturer’s name, product, date of manufacture, and directions for storage.

Store materials in their original undamaged packages in a clean, dry, protected location

and within temperature range required by air and vapor barrier membrane manufacturer. Protect

stored materials from direct sunlight.

Handle materials in accordance with manufacturer’s recommendations.


A. TEMPERATURE:

Install air and vapor barrier within range of ambient and substrate temperatures recom-

mended by air and vapor barrier manufacturer. Do not apply air and vapor barrier to a damp or

wet substrate.

B. FIELD CONDITIONS:

Do not install air and vapor barrier in snow, rain, fog, or mist. Do not install air and va-

por barrier when the temperature of substrate surfaces and surrounding air temperatures are be-

low those recommended by the manufacturer.

SELF-ADHERING AIR

AND VAPOR BARRIER


1.08 WARRANTY

A. MATERIAL WARRANTY:

Provide manufacturer’s standard product warranty, for a minimum 3 years from date of

Substantial Completion.

B. INSTALLATION WARRANTY:

Provide installer’s 2 year warranty from date of Substantial Completion, including all

components of the air and vapor barrier assembly, against failures including loss of air tight seal,

loss of watertight seal, loss of adhesion, loss of cohesion, failure to cure properly.

PART 2- PRODUCTS

2.01 GENERAL

A. SHEET AIR AND VAPOR BARRIER:

Self-adhering membrane composed of flexible facing material coated completely and uni-

formly on one side with adhesive material, formed into uniform, flexible sheets, interleaved with

disposable release liner that is removed prior to application. Use regular or low-temperature

formulation depending on site conditions, within temperature ranges specified by manufacturer.

Provide related accessories including primer, seam tape, mastic, fluid and sealant recommended

by manufacturer. Subject to compliance with requirements, provide one of the following:

1. Carlisle Coatings and Waterproofing:

a. Air and Vapor Barrier Membrane: CCW-705, 40 mils thick.

b. Water-Based Primer: CCW-AWP Water-Based Primer.

c. Solvent-Based Primer: CCW-702 Solvent-Based Primer.

d. Solvent-Based Aerosol Primer: CAV-GRIP.

e. Mastics, Adhesives and Tapes: CCW-704 Solvent-Based Rubber-

ized Asphalt Mastic.

2. Grace Construction Products:

a. Air and Vapor Barrier Membrane: Perm-A-Barrier, 40 mils thick.

b. Water-Based Primer: Perm-A-Barrier WB Primer.

c. Solvent-Based Primer: Bituthene Primer B-2.

d. Mastics, Adhesives and Tapes: As recommended by manufacturer.

SELF-ADHERING AIR

AND VAPOR BARRIER


3. Henry:

a. Air and Vapor Barrier Membrane: Blueskin SA, 40 mils thick.

b. Water-based Primer: Aquatac.

c. Solvent-Based Primer: Blueskin Primer.

d. Mastics, Adhesives and Tapes: Henry 570-05 Polybitume.

4. Protective Coatings Technology, Inc.:

a. Air and Vapor Barrier Membrane: Poly-Wall Crack Guard, 25

mils thick.

b. Water-Based Primer: As recommended by manufacturer.

c. Solvent-Based Primer: Poly-Wall AirLok or AirLok Flex as rec-

ommended.


5. Tremco, Inc.

a. Air and Vapor Barrier Membrane: ExoAir 110, 40 mils thick.

b. Water-Based Primer: Exo Air WB Primer.

c. Solvent-Based Primer: ExoAir Primer or GM Primer or ExoAir 10

Primer as recommended.


6. W. R. Meadows, Inc.:

a. Air and Vapor Barrier Membrane: Air-Shield, 40 mils thick.

b. Water-Based Primer: Mel-Prime Water Base.

c. Solvent-Based Primer: Mel-Prime VOC.


2.02 AUXILIARY MATERIALS

A. MEMBRANE AT TRANSITIONS IN SUBSTRATE AND CONNECTIONS TO

ADJACENT ELEMENTS:

Neoprene, ASTM D 2000 Designation 2BC415 to 3BC620, 50 to 65 mils (1.3 mm to 1.6

mm) thick with non-corrosive termination bars and fasteners. Adhesive and lap sealant as rec-

ommended by manufacturer.

SELF-ADHERING AIR

AND VAPOR BARRIER


B. SEALANT AT TRANSITIONS IN SUBSTRATE AND CONNECTIONS TO

ADJACENT ELEMENTS:

Low-modulus pre-cured silicone extrusion and sealant for bonding extrusions to sub-

strates; Tremco Silicone Extruded Sheet by Tremco, Spectrem EZ Seal by Tremco, or Bondaflex

Silbridge 300 by May National Associates.

C. TRANSITION MEMBRANE BETWEEN AIR AND VAPOR BARRIER

MEMBRANE AND ROOFING AND OTHER ADJACENT MATERIALS:

Comply with both air and vapor barrier manufacturer’s recommendations and materials

manufacturer’s recommendations.


3.01 EXAMINATION

Examine substrates, areas, and conditions under which air and vapor barrier assemblies

will be applied, with Installer present, for compliance with requirements.

1. Verify that surfaces and conditions are suitable prior to commencing work

of this section. Do not proceed with installation until unsatisfactory condi-

tions have been corrected.

2. Do not proceed with installation until after minimum concrete curing peri-

od recommended by air and vapor barrier manufacturer.

3. Ensure that the following conditions are met:

a. Surfaces are sound, dry, even, and free of oil, grease, dirt, excess

mortar or other contaminants.

b. Concrete surfaces are cured and dry, smooth without large voids,

spalled areas or sharp protrusions.

4. Verify substrate is visibly dry and free of moisture. Test for capillary

moisture by plastic sheet method according to ASTM D 4263 and take

suitable measures until substrate passes moisture test.

5. Verify sealants used in sheathing are compatible with membrane proposed

for use. Perform field peel-adhesion test on materials to which sealants

are adhered.

6. Notify Architect in writing of anticipated problems using air and vapor

barrier over substrate prior to proceeding.

SELF-ADHERING AIR

AND VAPOR BARRIER


3.02 SURFACE PREPARATION

Clean, prepare, and treat substrate according to manufacturer’s written instructions. En-

sure clean, dust-free, and dry substrate for air and vapor barrier application.

1. Prime masonry, concrete substrates with conditioning primer.

2. Prime glass-fiber surfaced gypsum sheathing an adequate number of coats

to achieve required bond, with adequate drying time between coats.

3. Prime wood, metal, and painted substrates with primer.

4. Prepare, treat, and seal vertical and horizontal surfaces at terminations and

penetrations through air and vapor barrier and at protrusions.

3.03 INSTALLATION

A. SELF-ADHERING SHEET AIR AND VAPOR BARRIER:

Install membrane to provide continuity throughout the building envelope. Install materi-

als in accordance with manufacturer’s recommendations and the following:

1. Apply primer at rate recommended by manufacturer prior to membrane in-

stallation. Allow primer to dry completely before membrane application.

Apply as many coats as necessary for proper adhesion.

2. When membrane is properly positioned, press into place and roll mem-

brane with roller immediately after placement.

3. Apply membrane sheets to shed water naturally without interception by a

sheet edge, unless that edge is sealed with permanently flexible termina-

tion mastic.

4. Position subsequent sheets of membrane applied above so that membrane

overlaps the membrane sheet below by a minimum of 2 inches (50 mm),

unless greater overlap is recommended by manufacturer. Roll into place

with roller.

5. Overlap horizontally adjacent pieces a minimum of 2 inches (50 mm), un-

less greater overlap is recommended by manufacturer. Roll seams with

roller.

6. Seal around all penetrations with termination mastic, extruded silicone

sealant, membrane counterflashing or other procedure in accordance with

manufacturer’s recommendations.

SELF-ADHERING AIR

AND VAPOR BARRIER

07270-10 PWS CONTRACT NO. 13-40UTIL DECEMBER

7. Connect air and vapor barrier in exterior wall assembly continuously to

the air barrier of the roof, to concrete below-grade structures, to windows,

curtain wall, storefront, louvers, exterior doors and other intersection con-

ditions and perform sealing of penetrations, using accessory materiasl and

in accordance with the manufacturer’s recommendations.

8. At changes in substrate plane, provide transition material (bead of sealant,

mastic, extruded silicone sealant, membrane counterflashing or other ma-

terial recommended by manufacturer) under membrane to eliminate all

sharp 90 degree inside corners and to make a smooth transition from one

plane to another.

9. Provide mechanically fastened non-corrosive metal sheet to span gaps in

substrate plane and to make a smooth transition from one plane to the oth-

er. Membrane shall be continuously supported by substrate.

10. At through-wall flashings, provide an additional 6 inch wide strip of man-

ufacturer’s recommended membrane counterflashing to seal top of

through-wall flashing to membrane. Seal exposed top edge of strip with

bead of mastic as recommended by manufacturer.

11. At deflection and control joints, provide backup for the membrane to ac-

commodate anticipated movement.

12. At expansion and seismic joints provide transition to the joint assemblies.

13. Apply a bead or trowel coat of mastic along membrane seams at reverse

lapped seams, rough cuts, and as recommended by the manufacturer.

14. At end of each working day, seal top edge of membrane to substrate with

termination mastic.

15. Do not allow materials to come in contact with chemically incompatible

materials.

16. Do not expose membrane to sunlight longer than as recommended by the

manufacturer.

17. Inspect installation prior to enclosing assembly and repair punctures, dam-

aged areas and inadequately lapped seams with a patch of membrane

lapped as recommended by manufacturer.

SELF-ADHERING AIR

AND VAPOR BARRIER



A. OWNER’S INSPECTION AND TESTING:

Cooperate with Owner’s testing agency. Allow access to work areas and staging. Notify

Owner’s testing agency in writing of schedule for Work of this Section to allow sufficient time

for testing and inspection. Do not cover Work of this Section until testing and inspection is ac-

cepted.

B. AIR BARRIER ASSOCIATION OF AMERICA INSTALLER AUDITS:

Cooperate with ABAA’s testing agency. Allow access to work areas and staging. Notify

Owner’s testing agency in writing of schedule for Work of this Section until testing and inspec-

tion is accepted.

3.05 PROTECTING AND CLEANING

Protect air and vapor barrier assemblies from damage during application and remainder

of construction period, according to manufacturer’s written instructions.

1. Coordinate with installation of materials which cover air and vapor mem-

brane, to ensure exposure period does not exceed that recommended by

the air and vapor barrier manufacturer.

Clean spillage and soiling from adjacent construction using cleaning agents and proce-

dures recommended by manufacturer of affected construction and acceptable to the primary ma-

terial manufacturer.

**END OF SECTION**

SELF-ADHERING AIR

AND VAPOR BARRIER

07270-12 PWS CONTRACT NO. 13-40UTIL DECEMBER


POLYVINYL-CHLORIDE ROOFING

NOVEMBER 2014 PWS CONTRACT NO. 13-40UTIL 07541-1

SECTION 07541

POLYVINYL-CHLORIDE (PVC) ROOFING

PART 1- GENERAL




1.02 SUMMARY


1. Adhered PVC membrane roofing system.

2. Protection Board

3. Roof insulation.

Section includes the installation of acoustical roof deck rib insulation strips furnished un-

der Division 05 Section "Steel Decking."


1. Division 06 Section " Miscellaneous Rough Carpentry" for wood nailers,

curbs, and blocking.

2. Division 07 Section "Thermal Insulation" for insulation beneath the roof

deck.

3. Division 07 Section "Sheet Metal Flashing and Trim" for metal roof pene-

tration flashings, flashings, and counterflashings.

4. Division 07 Section "Manufactured Roof Expansion Joints" for proprie-

tary manufactured roof expansion-joint assemblies.

5. Division 07 Section "Joint Sealants" for joint sealants, joint fillers, and

joint preparation.

6. Division 22 Plumbing Sections for roof drains.


07541-2 PWS CONTRACT NO. 13-40UTIL NOVEMBER 2014

1.03 DEFINITIONS

A. ROOFING TERMINOLOGY:

See ASTM D 1079 and glossary in NRCA's "The NRCA Roofing and Waterproofing

Manual" for definition of terms related to roofing work in this Section.


A. GENERAL PERFORMANCE:

Installed membrane roofing and base flashings shall withstand specified uplift pressures,

thermally induced movement, and exposure to weather without failure due to defective manufac-

ture, fabrication, installation, or other defects in construction. Membrane roofing and base flash-

ings shall remain watertight.

B. MATERIAL COMPATIBILITY:

Provide roofing materials that are compatible with one another under conditions of ser-

vice and application required, as demonstrated by membrane roofing manufacturer based on test-

ing and field experience.

C. ROOFING SYSTEM DESIGN:

Provide membrane roofing system that is identical to systems that have been successfully

tested by a qualified testing and inspecting agency to resist uplift pressure calculated according

to ASCE/SEI 7.

D. FM APPROVALS LISTING:

Provide membrane roofing, base flashings, and component materials that comply with

requirements in FM Approvals 4450 and FM Approvals 4470 as part of a membrane roofing sys-

tem, and that are listed in FM Approvals' "RoofNav" for Class 1 or noncombustible construction,

as applicable. Identify materials with FM Approvals markings.

E. FIRE/WINDSTORM CLASSIFICATION:

Class 1A-90.

F. HAIL RESISTANCE:

MH.



G. ENERGY PERFORMANCE:

Provide roofing system with initial Solar Reflectance Index equal to or greater than 104

when calculated according to ASTM E 1980, based on testing identical products by a qualified

testing agency.

H. ENERGY PERFORMANCE:

Provide roofing system with initial solar reflectance not less than 0.80 and emissivity not

less than 0.90 when tested according to CRRC-1.

1.05 SUBMITTALS

A. PRODUCT DATA:


B. SHOP DRAWINGS:

For roofing system. Include plans, elevations, sections, details, and attachments to other

work.

1. Base flashings and membrane terminations.

2. Tapered insulation, including slopes.

3. Insulation fastening patterns for corner, perimeter, and field-of-roof loca-

tions.

C. SAMPLES FOR VERIFICATION:

For the following products:

1. Sheet roofing, of color specified, including T-shaped side and end lap

seam.

2. Roof insulation.

3. Protection Board

4. Walkway rolls.

5. Metal termination bars.

6. Aluminum Peel Stop.



7. Six roof cover fasteners of each type, length, and finish.


For qualified Installer and manufacturer.

E. MANUFACTURER CERTIFICATES:

Signed by roofing manufacturer certifying that roofing system complies with require-

ments specified in "Performance Requirements" Article.

Submit evidence of compliance with performance requirements.

F. PRODUCT TEST REPORTS:

Based on evaluation of comprehensive tests performed by manufacturer and witnessed by

a qualified testing agency, for components of membrane roofing system.

G. RESEARCH/EVALUATION REPORTS:

For components of membrane roofing system, from the ICC-ES.

H. MAINTENANCE DATA:

For roofing system to include in maintenance manuals.

I. WARRANTIES:

Sample of special warranties.


A. MANUFACTURER QUALIFICATIONS:

A qualified manufacturer that is UL listed and FM Approvals approved for membrane

roofing system identical to that used for this Project.

B. INSTALLER QUALIFICATIONS:

A qualified firm that is approved, authorized, or licensed by membrane roofing system

manufacturer to install manufacturer's product and that is eligible to receive manufacturer's spe-

cial warranty.



C. SOURCE LIMITATIONS:

Obtain components including roof insulation, fasteners, adhesives and accessories, for

membrane roofing system from same manufacturer as membrane roofing or approved by mem-

brane roofing manufacturer.

D. MANUFACTURER QUALIFICATION:

Manufacturer shall have directly produced the specified PVC membrane and flashing

components for a period equal to or greater than that of the specified warranty term prior to be-

ginning the work of this Section.

Membrane to have no formulation changes in the last fifteen (15) years as certified by the

manufacturer.

E. EXTERIOR FIRE-TEST EXPOSURE:

ASTM E 108, Class A; for application and roof slopes indicated, as determined by testing

identical membrane roofing materials by a qualified testing agency. Materials shall be identified

with appropriate markings of applicable testing agency.

F. FIRE-RESISTANCE RATINGS:

Where indicated, provide fire-resistance-rated roof assemblies identical to those of as-

semblies tested for fire resistance per ASTM E 119 by a qualified testing agency. Identify prod-

ucts with appropriate markings of applicable testing agency.

G. PRELIMINARY ROOFING CONFERENCE:

Before starting roof deck construction, conduct conference at Project site.

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and in-

specting agency representative, roofing Installer, roofing system manufac-

turer's representative, deck Installer, and installers whose work interfaces

with or affects roofing, including installers of roof accessories and roof-

mounted equipment.

2. Review methods and procedures related to roofing installation, including

manufacturer's written instructions.

3. Review and finalize construction schedule and verify availability of mate-

rials, Installer's personnel, equipment, and facilities needed to make pro-

gress and avoid delays.

4. Review deck substrate requirements for conditions and finishes, including

flatness and fastening.



5. Review structural loading limitations of roof deck during and after roof-

ing.

6. Review base flashings, special roofing details, roof drainage, roof penetra-

tions, equipment curbs, and condition of other construction that will affect

roofing system.

7. Review governing regulations and requirements for insurance and certifi-

cates if applicable.

8. Review temporary protection requirements for roofing system during and

after installation.

9. Review roof observation and repair procedures after roofing installation.

H. PREINSTALLATION ROOFING CONFERENCE:


1. Meet with Owner, Architect, Owner's insurer if applicable, testing and in-

specting agency representative, roofing Installer, roofing system manufac-

turer's representative, deck Installer, and installers whose work interfaces

with or affects roofing, including installers of roof accessories and roof-

mounted equipment.

2. Review methods and procedures related to roofing installation, including

manufacturer's written instructions.

3. Review and finalize construction schedule and verify availability of mate-

rials, Installer's personnel, equipment, and facilities needed to make pro-

gress and avoid delays.

4. Examine deck substrate conditions and finishes for compliance with re-

quirements, including flatness and fastening.

5. Review structural loading limitations of roof deck during and after roof-

ing.

6. Review base flashings, special roofing details, roof drainage, roof penetra-

tions, equipment curbs, and condition of other construction that will affect

roofing system.

7. Review governing regulations and requirements for insurance and certifi-

cates if applicable.

8. Review temporary protection requirements for roofing system during and

after installation.



9. Review roof observation and repair procedures after roofing installation.


Deliver roofing materials to Project site in original containers with seals unbroken and

labeled with manufacturer's name, product brand name and type, date of manufacture, approval

or listing agency markings, and directions for storing and mixing with other components.

Store liquid materials in their original undamaged containers in a clean, dry, protected lo-

cation and within the temperature range required by roofing system manufacturer. Protect stored

liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied with-

in its stated shelf life.

Protect roof insulation materials from physical damage and from deterioration by sun-

light, moisture, soiling, and other sources. Store in a dry location. Comply with insulation man-

ufacturer's written instructions for handling, storing, and protecting during installation.

Handle and store roofing materials and place equipment in a manner to avoid permanent

deflection of deck.


A. WEATHER LIMITATIONS:

Proceed with installation only when existing and forecasted weather conditions permit

roofing system to be installed according to manufacturer's written instructions and warranty re-

quirements.

1.09 WARRANTY

A. SPECIAL WARRANTY:

Manufacturer's standard or customized form, without monetary limitation, in which man-

ufacturer agrees to repair or replace components of membrane roofing system that fail in materi-

als or workmanship within specified warranty period.

1. Special warranty includes membrane roofing, base flashings, roof insula-

tion, fasteners, cover boards, substrate board, roofing accessories, and oth-

er components of membrane roofing system.

2. Warranty Period: 15 years from date of Substantial Completion.



B. SPECIAL PROJECT WARRANTY:

Submit roofing Installer's warranty, on warranty form at end of this Section, signed by

Installer, covering the Work of this Section, including all components of membrane roofing sys-

tem such as membrane roofing, base flashing, roof insulation, fasteners, cover boards, substrate

boards, and walkway products, for the following warranty period:

1. WARRANTY PERIOD: Two years from date of Substantial Completion.

PART 2 – PRODUCTS

2.01 PVC MEMBRANE ROOFING

A. PVC SHEET:

ASTM D 4434, Type II, Grade I, glass fiber reinforced.


lowing:

a. Sarnafil Inc.; Sarnafil G410.

b. FiberTite

c. Duro-Last

2. THICKNESS: 72 mils, minimum. ASTM +/- tolerance for membrane

thickness is not accepted

3. EXPOSED FACE COLOR: As selected by Architect from manufacturer’s

standard color.

4. EXPOSED FACE COLOR AT ROOF PERIMETER: As selected by Ar-

chitect from manufacturer’s standard color.

2.02 AUXILIARY MEMBRANE ROOFING MATERIALS

A. GENERAL:

Auxiliary membrane roofing materials recommended by roofing system manufacturer for

intended use, and compatible with membrane roofing.

1. Liquid-type auxiliary materials shall comply with VOC limits of authori-

ties having jurisdiction.



2. Adhesives and sealants that are not on the exterior side of weather barrier

shall comply with the following limits for VOC content when calculated

according to 40 CFR 59, Subpart D (EPA Method 24):

a. Plastic Foam Adhesives: 50 g/L.

b. Gypsum Board and Panel Adhesives: 50 g/L.

c. Multipurpose Construction Adhesives: 70 g/L.

d. Fiberglass Adhesives: 80 g/L.

e. Contact Adhesive: 80 g/L.

f. Other Adhesives: 250 g/L.

g. PVC Welding Compounds: 510 g/L.

h. Adhesive Primer for Plastic: 650 g/L

i. Single-Ply Roof Membrane Sealants: 450 g/L.

j. Nonmembrane Roof Sealants: 300 g/L.

k. Sealant Primers for Nonporous Substrates: 250 g/L.

l. Sealant Primers for Porous Substrates: 775 g/L.

B. SHEET FLASHING:

Manufacturer's standard 60 mil sheet flashing of same material, type, reinforcement, and

color as PVC sheet membrane.

C. MEMBRANE ADHESIVE:

Manufacturer's standard water based membrane adhesive.

D. FLASHING ADHESIVE:

Manufacturer's standard VOC compliant flashing adhesive.

E. METAL TERMINATION BARS:

Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by

1/8 inch thick; with anchors.

F. ALUMINUM PEEL STOP:

Manufacturer's standard, aluminum-zinc-alloy-coated approximately 1 inch wide by 0.05 inch

thick, prepunched.

G. FASTENERS:

Factory-coated steel fasteners and metal or plastic plates complying with corrosion-

resistance provisions in FM Approvals 4470, designed for fastening membrane to substrate, and

acceptable to membrane roofing system manufacturer.


07541-10 PWS CONTRACT NO. 13-40UTIL NOVEMBER

H. MISCELLANEOUS ACCESSORIES:

Provide pourable sealers, preformed cone and vent sheet flashings, preformed inside and

outside corner sheet flashings, T-joint covers, lap sealants, termination reglets, and other acces-

sories.

2.03 ROOF INSULATION

A. GENERAL:

Preformed roof insulation boards manufactured or approved by PVC membrane roofing

manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses

indicated and that produce FM Approvals-approved roof insulation.

B. POLYISOCYANURATE BOARD INSULATION:

ASTM C 1289, Type II, Class I, Grade 3, felt or glass-fiber mat facer on both major sur-

faces. Polyisocyanurate insulation is to have an R-Value of R-19 with a corresponding thickness

of 3.1 inches minimum. Fabricate to slopes indicated.

C. POLYISOCYANURATE INSULATION CRICKETS:

Provide factory preformed saddles, crickets, tapered edge strips, and other insulation

shapes where indicated for sloping to drain. Fabricate to slopes indicated.

2.04 PROTECTION BOARD

A. PROTECTION BOARD:

ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum substrate, 1/2 inch

thick, factory primed, and approved by roofing manufacturer.


lowing:

a. Georgia-Pacific Corporation; Dens Deck Prime or Dens Deck

DuraGuard.

b. Or Approved Equal.

2.05 INSULATION/PROTECTION BOARD ACCESSORIES

A. GENERAL:

Furnish roof insulation accessories recommended by insulation manufacturer for intended

use and compatibility with membrane roofing.



B. BEAD-APPLIED INSULATION ADHESIVE:

Insulation manufacturer's recommended bead-applied, low-rise, one- or multicomponent

urethane adhesive formulated to attach roof insulation to substrate or to another insulation layer.

2.06 WALKWAYS

A. FLEXIBLE WALKWAYS:

Factory-formed, nonporous, heavy-duty, slip-resisting, surface-textured walkway rolls,

approximately 3/16 inch thick, and acceptable to membrane roofing system manufacturer.


3.01 EXAMINATION

Examine substrates, areas, and conditions, with Installer present, for compliance with the

following requirements and other conditions affecting performance of roofing system:

1. Verify that roof openings and penetrations are in place and curbs are set

and braced and that roof drain bodies are securely clamped in place.

2. Verify that wood blocking, curbs, and nailers are securely anchored to

roof deck at penetrations and terminations and that nailers match thick-

nesses of insulation.

3. Verify that minimum concrete drying period recommended by roofing

system manufacturer has passed.

4. Verify that concrete substrate is visibly dry and free of moisture. Test for

capillary moisture by plastic sheet method according to ASTM D 4263.

5. Verify that concrete curing compounds that will impair adhesion of roof-

ing components to roof deck have been removed.


3.02 PREPARATION

Clean substrate of dust, debris, moisture, and other substances detrimental to roofing in-

stallation according to roofing system manufacturer's written instructions. Remove sharp projec-

tions.



Prevent materials from entering and clogging roof drains and conductors and from spill-

ing or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is

taking place or when rain is forecast.

Complete terminations and base flashings and provide temporary seals to prevent water

from entering completed sections of roofing system at the end of the workday or when rain is

forecast. Remove and discard temporary seals before beginning work on adjoining roofing.

3.03 INSULATION/PROTECTION BOARD INSTALLATION

Coordinate installing membrane roofing system components so insulation is not exposed

to precipitation or left exposed at the end of the workday.

Comply with membrane roofing system and insulation manufacturer's written instructions

for installing roof insulation.

Install tapered cricket insulation where indicated.

The polyisocyanurate insulation system is to have a LTTR value of R-19.

Insulation and Dens Deck shall be installed according to manufacturer's instructions.

Insulation and Dens Deck shall be neatly cut to fit around penetrations and projections.

A. LOW RISE FOAM ADHESIVE:

With a utility knife, cut away the plastic plugs from the adhesive mixing head. Attach a

mixing tip to the threaded mixing head. Place the cartridge into the applicator. At the beginning

of the tube, some of the material should be pumped out initially to make sure of a proper mix.

Apply using a battery powered applicator or by hand with a dual component caulk gun over

properly installed and prepared substrates in bands 12 in. o.c. Bands are 1/4-1/2 in. wide before

foaming. Adhesive will quickly, within 30-45 seconds at 60-80°F, transform from a liquid into a

low rise foam. Immediately set insulation/protection boards into wet adhesive. Do not allow the

adhesive to skin over. Walk insulation/protection boards into place to ensure full embedment.

Within 5-15 minutes the boards are securely attached to the substrate. In warmer weather this

process is a little quicker. In colder weather the process is a little slower. CAUTION: Walking

insulation/protection boards in immediately after placement into adhesive may cause slip-

page/movement until adhesive starts to set up. On roof slopes greater than 1/2 inch in 12 inches,

begin adhering insulation/protection boards at low point and work upward to avoid slippage.

One person should be designated to walk in, trim/slit and apply weight to all insula-

tion/protection boards to ensure adequate securement. Only areas that can be made completely

watertight in the same day’s operations shall be coated. Un-used adhesive can be applied at a

later date by simply replacing the mixing tip. For multiple layers of insulation apply adhesive

over the base layer once fully secured and follow procedures above for attachment of each insu-

lation layer.



3.04 ADHERED MEMBRANE ROOFING INSTALLATION

The surface of the protection board or substrate shall be inspected prior to installation of

the PVC roof membrane. The substrate shall be clean, dry, free from debris and smooth with no

surface roughness or contamination. Broken, delaminated, wet or damaged insulation boards

shall be removed and replaced.

A. WATER BASED MEMBRANE ADHESIVE:

Over the properly installed and prepared substrate, the membrane adhesive shall be

poured out of the pail and spread using notched ¼ inch x ¼ inch x ¼ inch rubber squeegees. The

adhesive shall be applied at a rate according to the manufacturer’s requirements. No adhesive is

applied to the back of the PVC membrane. Do not allow adhesive to skin-over or surface-dry

prior to installation of PVC membrane.

The PVC roof membrane is unrolled immediately into the wet adhesive. Adjacent rolls

overlap previous rolls by 3 inches. This process is repeated throughout the roof area. Immedi-

ately after application into adhesive, each roll shall be pressed firmly into place with a water-

filled, foam-covered lawn roller by frequent rolling in two directions. Do not allow adhesive to

skin-over or surface-dry prior to installation of PVC membrane.

1. Notes:

a. The membrane adhesive shall not be used if temperatures below

40º F are expected during application or subsequent drying time.

b. No adhesive shall be applied in seam areas. All membrane shall be

applied in the same manner.

3.05 HOT AIR WELDING OF SEAM OVERLAPS

A. GENERAL:

All seams shall be hot-air welded. Seam overlaps should be 3 inches wide when auto-

matic machine-welding and 4 inches wide when hand-welding, except for certain details.

Welding equipment shall be provided by or approved by the roofing manufacturer. All

mechanics intending to use the equipment shall have successfully completed a training course

provided by a manufacturer’s Technical Representative prior to welding.

All membrane to be welded shall be clean and dry.

B. HAND-WELDING:

Hand-welded seams shall be completed in two stages. Hot-air welding equipment shall

be allowed to warm up for at least one minute prior to welding.



The back edge of the seam shall be welded with a narrow but continuous weld to prevent

loss of hot air during the final welding.

The nozzle shall be inserted into the seam at a 45 degree angle to the edge of the mem-

brane. Once the proper welding temperature has been reached and the membrane begins to

"flow," the hand roller is positioned perpendicular to the nozzle and rolled lightly. For straight

seams, the 1-1/2 inch wide nozzle is recommended for use. For corners and compound connec-

tions, the 3/4 inch wide nozzle shall be used.

C. MACHINE WELDING:

Machine welded seams are achieved by the use of the manufacturer’s automatic welding

equipment. When using this equipment, the manufacturer's instructions shall be followed and

local codes for electric supply, grounding and over current protection observed. Dedicated cir-

cuit house power or a dedicated portable generator is recommended. No other equipment shall

be operated simultaneously off the generator.

Metal tracks may be used over the deck membrane and under the machine welder to min-

imize or eliminate wrinkles.

D. QUALITY CONTROL OF WELDED SEAMS:

The Applicator shall check all welded seams for continuity using a rounded screwdriver.

Visible evidence that welding is proceeding correctly is smoke during the welding operation,

shiny membrane surfaces, and an uninterrupted flow of dark grey material from the underside of

the top membrane. On-site evaluation of welded seams shall be made daily by the Applicator at

locations as directed by the Owner's Representative or manufacturer’s representative. One inch

wide cross-section samples of welded seams shall be taken at least two times a day. Correct

welds display failure from shearing of the membrane prior to separation of the weld. Each test

cut shall be patched by the Applicator at no extra cost to the Owner.

3.06 BASE FLASHING INSTALLATION

All flashings shall be installed concurrently with the roof membrane as the job progress-

es. No temporary flashings shall be allowed without the prior written approval of the Owner's

Representative and the roofing manufacturer. If any water is allowed to enter under the newly

completed roofing, the affected area shall be removed and replaced at the Applicator's expense.

Flashing shall be adhered to compatible, dry, smooth, and solvent-resistant surfaces. Use caution

to ensure adhesive fumes are not drawn into the building.

A. FLASHING ADHESIVE FOR MEMBRANE FLASHINGS:

Over the properly installed and prepared flashing substrate, the flashing adhesive shall be

applied according to instructions found on the Product Data Sheet. The flashing adhesive shall

be applied in smooth, even coats with no gaps, globs or similar inconsistencies. Only an area



which can be completely covered in the same day's operations shall be flashed. The bonded

sheet shall be pressed firmly in place with a hand roller.

No adhesive shall be applied in seam areas that are to be welded. All panels of mem-

brane shall be applied in the same manner, overlapping the edges of the panels as required by

welding techniques.

Install peel stop according to the Detail Drawings with approved fasteners into the struc-

tural deck at the base of parapets, walls and curbs. Peel stop is required by the manufacturer at

the base of all tapered edge strips and at transitions, peaks, and valleys according to manufactur-

er's details.

All flashings shall extend a minimum of 8 inches above roofing level unless otherwise

accepted in writing by the Owner's Representative and Manufacturer’s Technical Department.

All flashing membranes shall be consistently adhered to substrates. All interior and exte-

rior corners and miters shall be cut and hot-air welded into place. No bitumen shall be in contact

with the PVC membrane.

All flashing membranes shall be mechanically fastened along the counter-flashed top

edge with peel stop at 6-8 inches on center.

Flashings shall be terminated according to the roofing manufacturer’s recommended de-

tails.

All flashings that exceed 30 inches in height shall receive additional securement. Consult

the manufacturer’s Technical Department for securement methods.

3.07 METAL FLASHINGS

Metal details, fabrication practices and installation methods shall conform to the applica-

ble requirements of the following:

1. Factory Mutual Loss Prevention Data Sheet 1-49 (latest issue).

2. Sheet Metal and Air Conditioning Contractors National Association, Inc.

(SMACNA) - latest issue.

Metal, other than that provided by the roofing manufacturer, is not covered under the

Manufacturer’s 15 year system warranty.

Complete all metal work in conjunction with roofing and flashings so that a watertight

condition exists daily.

Metal shall be installed to provide adequate resistance to bending to allow for normal

thermal expansion and contraction.



Metal joints shall be watertight.

Metal flashings shall be securely fastened into solid wood blocking. Fasteners shall

penetrate the wood nailer a minimum of 1 inch.

Airtight and continuous metal hook strips are required behind metal fascias. Hook strips

are to be fastened 12 inches on center into the wood nailer or masonry wall.

Counter flashings shall overlap base flashings at least 4 inches.

Hook strips shall extend past wood nailers over wall surfaces by 1-1/2 inch minimum and

shall be securely sealed from air entry.

3.08 WALKWAY INSTALLATION

A. FLEXIBLE WALKWAYS:

Install walkway products in locations indicated. Roofing membrane to receive walk tread

shall be clean and dry. Place chalk lines on deck sheet to indicate location of walkway. Apply a

continuous coat of flashing adhesive to the deck sheet and the back of the walkway in accord-

ance with the manufacturer's technical requirements and press walkway into place with a water-

filled, foam-covered lawn roller. Clean the deck membrane in areas to be welded. Hot-air weld

the entire perimeter of the walkway to the PVC deck sheet. Check all welds with a rounded

screwdriver. Re-weld any inconsistencies. Important: Check all existing deck membrane

seams that are to be covered by walkway with rounded screwdriver and reweld any inconsisten-

cies before walkway installation


A. TESTING AGENCY:

Owner will engage a qualified testing agency to perform tests and inspections.

B. FINAL ROOF INSPECTION:

Arrange for roofing system manufacturer's technical personnel to inspect roofing installa-

tion on completion.

Repair or remove and replace components of membrane roofing system where inspec-

tions indicate that they do not comply with specified requirements.

Additional inspections, at Contractor's expense, will be performed to determine compli-

ance of replaced or additional work with specified requirements.



3.10 PROTECTING AND CLEANING

Protect membrane roofing system from damage and wear during remainder of construc-

tion period. When remaining construction will not affect or endanger roofing, inspect roofing for

deterioration and damage, describing its nature and extent in a written report, with copies to Ar-

chitect and Owner.

Correct deficiencies in or remove membrane roofing system that does not comply with

requirements; repair substrates; and repair or reinstall membrane roofing system to a condition

free of damage and deterioration at time of Substantial Completion and according to warranty

requirements.

Clean overspray and spillage from adjacent construction using cleaning agents and pro-

cedures recommended by manufacturer of affected construction.

3.11 ROOFING INSTALLER'S WARRANTY

WHEREAS Insert name of Insert address, herein called the "Roofing Installer," has per-

formed roofing and associated work ("work") on the following project:

1. Owner: <Insert name of Owner>.

2. Address: <Insert address>.

3. Building Name/Type: <Insert information>.

4. Address: <Insert address>.

5. Area of Work: <Insert information>.

6. Acceptance Date: <Insert date>.

7. Warranty Period: <Insert time>.

8. Expiration Date: <Insert date>.

AND WHEREAS Roofing Installer has contracted (either directly with Owner or indi-

rectly as a subcontractor) to warrant said work against leaks and faulty or defective materials and

workmanship for designated Warranty Period,

NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions

herein set forth, that during Warranty Period he will, at his own cost and expense, make or cause

to be made such repairs to or replacements of said work as are necessary to correct faulty and

defective work and as are necessary to maintain said work in a watertight condition.

This Warranty is made subject to the following terms and conditions:

1. Specifically excluded from this Warranty are damages to work and other

parts of the building, and to building contents, caused by:

a. Lightning;

b. Peak gust wind speed exceeding Insert wind speed mph;



c. Fire;

d. Failure of roofing system substrate, including cracking, settlement,

excessive deflection, deterioration, and decomposition;

e. Faulty construction of parapet walls, copings, chimneys, skylights,

vents, equipment supports, and other edge conditions and

penetrations of the work;

f. Vapor condensation on bottom of roofing; and

g. Activity on roofing by others, including construction contractors,

maintenance personnel, other persons, and animals, whether

authorized or unauthorized by Owner.

2. When work has been damaged by any of foregoing causes, Warranty shall

be null and void until such damage has been repaired by Roofing Installer

and until cost and expense thereof have been paid by Owner or by another

responsible party so designated.

3. Roofing Installer is responsible for damage to work covered by this War-

ranty but is not liable for consequential damages to building or building

contents resulting from leaks or faults or defects of work.

4. During Warranty Period, if Owner allows alteration of work by anyone

other than Roofing Installer, including cutting, patching, and maintenance

in connection with penetrations, attachment of other work, and positioning

of anything on roof, this Warranty shall become null and void on date of

said alterations, but only to the extent said alterations affect work covered

by this Warranty. If Owner engages Roofing Installer to perform said al-

terations, Warranty shall not become null and void unless Roofing Install-

er, before starting said work, shall have notified Owner in writing, show-

ing reasonable cause for claim, that said alterations would likely damage

or deteriorate work, thereby reasonably justifying a limitation or termina-

tion of this Warranty.

5. During Warranty Period, if original use of roof is changed and it becomes

used for, but was not originally specified for, a promenade, work deck,

spray-cooled surface, flooded basin, or other use or service more severe

than originally specified, this Warranty shall become null and void on date

of said change, but only to the extent said change affects work covered by

this Warranty.

6. Owner shall promptly notify Roofing Installer of observed, known, or sus-

pected leaks, defects, or deterioration and shall afford reasonable oppor-

tunity for Roofing Installer to inspect work and to examine evidence of

such leaks, defects, or deterioration.



7. This Warranty is recognized to be the only warranty of Roofing Installer

on said work and shall not operate to restrict or cut off Owner from other

remedies and resources lawfully available to Owner in cases of roofing

failure. Specifically, this Warranty shall not operate to relieve Roofing In-

staller of responsibility for performance of original work according to re-

quirements of the Contract Documents, regardless of whether Contract

was a contract directly with Owner or a subcontract with Owner's General

Contractor.

IN WITNESS THEREOF, this instrument has been duly executed this Insert day day of

Insert month, Insert year.

1. Authorized Signature: Insert signature.

2. Name: Insert name.

3. Title: Insert title.

**END OF SECTION**

WALL FLASHING AND

SHEET METAL


SECTION 07600

FLASHING AND SHEET METAL

PART 1--GENERAL


Drawings and general provisions of contract, including General and Supplementary

Conditions and Division 1 specification sections, apply to work of this section.

1.02 DESCRIPTION OF WORK

Extent of each type of flashing and sheet metal work is indicated on the drawings and by

provisions of this section.

The types of work specified in this section include the following:

1. Metal counter flashing; and base flashing (if any).

2. Metal wall flashing and expansion joints.

3. Miscellaneous sheet metal accessories.

4. Elastic roof expansion joint systems.

Roofing accessories are specified in roofing system sections as roofing work.

1.03 JOB CONDITIONS

Coordinate work of this section with interfacing and adjoining work for proper sequencing

of each installation. Ensure best possible weather resistance and durability of the work and

protection of materials and finishes.

PART 2--PRODUCTS

2.01 FLASHING AND SHEET METAL MATERIALS

A. SHEET METAL FLASHING/TRIM; ZINC-COATED STEEL:

Commercial quality with 0.20 percent copper, ASTM A525 except ASTM A527 for

lock-forming, G90 hot-dip galvanized, mill phosphatized where indicated for painting; (24 gage)

except as otherwise indicated.

WALL FLASHING AND

SHEET METAL


B. ELASTIC SHEET FLASHING/MEMBRANE:

Manufacturer's standard flexible, elastic, black, nonreinforced, flashing sheet of 50-65 mils

thickness; 50-70 Shore A hardness (ASTM D2240); 1200 psi tensile strength (ASTM D412); 120

pounds per linear inch tear resistance (ASTM D624, Die C); ultimate elongation of 250 percent

(ASTM D412); brittleness temperature of -30 degrees F (-35 degrees C) (ASTM D746); resistance

to ozone aging of no cracks for 10 percent elongated sample for 100 hours in 50 pphm ozone at 104

degrees F (70 degrees C) (ASTM D573); resistance to hear aging of maximum hardness increase of

15 points, elongation reduction of 40 percent, and tensile strength reduction of 30 percent, for 70

hours at 212 degrees (110 degrees C) (ASTM D573).

1. Provide butyl synthetic rubber sheet.

C. MISCELLANEOUS MATERIALS AND ACCESSORIES:

1. SOLDER: For use with steel or copper, provide 50-50 tin/lead solder

ASTM B32), with rosin flux.

2. FASTENERS: Same metal as flashing/sheet metal or, other noncorrosive

metal as recommended by sheet manufacturer. Match finish of exposed head with materials being

fastened.

3. BITUMINOUS COATING: FS FF-C-494 or SSPC - Paint 12, solvent type

bituminous mastic, nominally free of sulfur, compounded for 15-mil dry film thickness per coat.

4. MASTIC SEALANT: Polyisobutylene; nonhardening, nonskinning,

nondrying, nonmigrating sealant.

5. ELASTOMERIC SEALANT: Generic type recommended by manufacturer

of metal and fabricator of components being sealed; comply with FS TT-S-0027, TTS-00230, or

TT-S-001543.

6. PAPER SLIP SHEET: 5 pound rosin-sized building paper.

7. Polyethylene Underlayment: 6-mil carbonated polyethylene film;

FS L-P512.

D. METAL ACCESSORIES:

Provide sheet metal clips, straps, anchoring devices and similar accessory units as required

for installation of work, matching or compatible with material being installed, noncorrosive, size

and gage required for performance.

WALL FLASHING AND

SHEET METAL


2.02 FABRICATED UNITS

A. GENERAL METAL FABRICATION:

Shop-fabricate work to greatest extent possible. Comply with details shown, and with

applicable requirements of SMACNA "Architectural Sheet Metal Manual" and other recognized

industry practices. Fabricate for waterproof and weather-resistant performance; with expansion

provision for running work, sufficient to permanently prevent leakage, damage or deterioration of

the work. Form work to fit substrates. Comply with material manufacturer instructions and

recommendations. Form exposed sheet metal work without excessive oil-canning, buckling and

tool marks, true to line and levels as indicated, with exposed edges folded back to form hems.

B. SEAMS:

Fabricate nonmoving seams in sheet metal with flat-lock seams. For metal other than

aluminum, line edges to be seamed, form seams and solder. Form aluminum seams with epoxy

seam sealer; rivet joints for additional strength where required.

C. EXPANSION PROVISIONS:

Where lapped or bayonet-type expansion provisions in work cannot be used, or would not

be sufficiently water-weatherproof, from expansion joint if intermeshing hooked flanges, not less

than 1 inch deep, filled with mastic sealant (concealed within joint).

D. SEALANT JOINTS:

Where movable, non-expansion type joints are indicated or required for proper performance

of work, form metal to provide for proper installation of elastomeric sealant, in compliance with

industry standards.

E. SEPARATIONS:

Provide for separation of metal from noncompatible metal or corrosive substrates by coating

concealed surfaces at locations of contact, with bituminous coating or other permanent separation

as recommended by manufacturer/fabricator.

PART 3--EXECUTION

3.01 INSTALLATION REQUIREMENTS

A. GENERAL:

Except as otherwise indicated, comply with manufacturer's installation instructions and

recommendations, and with SMACNA "Architectural Sheet Metal Manual." Anchor units of work

WALL FLASHING AND

SHEET METAL


securely in place by methods indicated, providing for thermal expansion of metal units; conceal

fasteners where possible, and set units true to line and level as indicated. Install work with laps,

joints and seams which will be permanently watertight and weatherproof.

1. Bed flanges of work in a thick coat of bituminous roofing cement where

required for waterproof performance.

2. Install elastic flashing without stretching. Install elastic flashing filler strips

to provide for movement by forming loops or bellows in width of flashing.

Locate filler strips to facilitate complete drainage of water from flashing.

Seam flashing sheets with adhesive, and anchor edges in manner indicated.

3. Nail flanges of expansion joint units to curb nailers, at maximum spacing of

6 feet. Complete seams at joints between units, to form a continuous

waterproof system.

3.02 CLEANING AND PROTECTION

Clean exposed metal surfaces, removing substances which might cause corrosion of metal

or deterioration of finishes.

Installer shall advise Contractor of required procedures for surveillance and protection of

flashings and sheet metal work during construction, to ensure that work will be without damage or

deterioration, other than natural weathering, at time of substantial completion.

**END OF SECTION**

SHEET METAL

FLASHING AND TRIM


SECTION 07620

SHEET METAL FLASHING AND TRIM

PART 1 – GENERAL




1.02 SUMMARY


1. MANUFACTURED PRODUCTS:

a. Manufactured reglets and counterflashing.

2. FORMED PRODUCTS:

a. Formed roof drainage sheet metal fabrications.

b. Formed low-slope roof sheet metal fabrications.

c. Formed wall sheet metal fabrications.

d. Formed equipment support flashing.

e. Formed overhead-piping safety pans.


1. Division 06 Section " Miscellaneous Rough Carpentry" for wood nailers,

curbs, and blocking.

2. Division 07 Section "Polyvinyl-Chloride (PVC) Roofing" for installing

sheet metal flashing and trim integral with membrane roofing.

3. Division 07 Section "Roof Accessories" for set-on-type curbs, equipment

supports, roof hatches, vents, and other manufactured roof accessory units.


A. GENERAL:

Sheet metal flashing and trim assemblies as indicated shall withstand wind loads, struc-

tural movement, thermally induced movement, and exposure to weather without failure due to

SHEET METAL

FLASHING AND TRIM


defective manufacture, fabrication, installation, or other defects in construction. Completed

sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

Fabricate and install roof edge flashing and copings capable of resisting the following

forces according to recommendations in FMG Loss Prevention Data Sheet 1-49:

1. WIND ZONE 2: For velocity pressures of 31 to 45 lbf/sq. ft.: 90-lbf/sq.

ft. perimeter uplift force, 120-lbf/sq. ft. corner uplift force, and 45-lbf/sq. ft. outward force.

B. THERMAL MOVEMENTS:

Provide sheet metal flashing and trim that allows for thermal movements from ambient

and surface temperature changes.

1. TEMPERATURE CHANGE (RANGE): 120 deg F, ambient; 180 deg F,

material surfaces.

1.04 SUBMITTALS

A. PRODUCT DATA:

For each type of product indicated. Include construction details, material descriptions,

dimensions of individual components and profiles, and finishes for each manufactured product

and accessory.

B. SHOP DRAWINGS:

Show fabrication and installation layouts of sheet metal flashing and trim, including

plans, elevations, expansion-joint locations, and keyed details. Distinguish between shop- and

field-assembled work. Include the following:

1. Identification of material, thickness, weight, and finish for each item and

location in Project.

2. Details for forming sheet metal flashing and trim, including profiles,

shapes, seams, and dimensions.

3. Details for joining, supporting, and securing sheet metal flashing and trim,

including layout of fasteners, cleats, clips, and other attachments. Include

pattern of seams.

4. Details of termination points and assemblies, including fixed points.

5. Details of expansion joints and expansion-joint covers, including showing

direction of expansion and contraction.

SHEET METAL

FLASHING AND TRIM


6. Details of edge conditions, including eaves, ridges, valleys, rakes, crickets,

and counterflashings as applicable.

7. Details of special conditions.

8. Details of connections to adjoining work.

9. Detail formed flashing and trim at a scale of not less than 3 inches per 12

inches.

C. SAMPLES FOR INITIAL SELECTION:

For each type of sheet metal flashing, trim, and accessory indicated with factory-applied

color finishes involving color selection.

D. SAMPLES FOR VERIFICATION:

For each type of exposed finish required, prepared on Samples of size indicated below:

1. SHEET METAL FLASHING: 12 inches long by actual width of unit, in-

cluding finished seam and in required profile. Include fasteners, cleats, clips, closures, and other

attachments.

2. TRIM, METAL CLOSURES, EXPANSION JOINTS, JOINT

INTERSECTIONS, AND MISCELLANEOUS FABRICATIONS: 12 inches long and in re-

quired profile. Include fasteners and other exposed accessories.

3. ACCESSORIES AND MISCELLANEOUS MATERIALS: Full-size

Sample.

4. ANODIZED ALUMINUM SAMPLES: Samples to show full range to be

expected for each color required.

E. QUALIFICATION DATA:

For qualified fabricator.

F. MAINTENANCE DATA:

For sheet metal flashing, trim, and accessories to include in maintenance manuals.

G. WARRANTY:

Sample of special warranty.

SHEET METAL

FLASHING AND TRIM



A. FABRICATOR QUALIFICATIONS:

Shop that employs skilled workers who custom fabricate sheet metal flashing and trim

similar to that required for this Project and whose products have a record of successful in-service

performance.

B. SHEET METAL FLASHING AND TRIM STANDARD:

Comply with SMACNA's "Architectural Sheet Metal Manual" unless more stringent re-

quirements are specified or shown on Drawings.

C. COPPER SHEET METAL STANDARD:

Comply with CDA's "Copper in Architecture Handbook." Conform to dimensions and

profiles shown unless more stringent requirements are indicated.

D. MOCKUPS:

Build mockups to verify selections made under sample submittals and to demonstrate

aesthetic effects and set quality standards for fabrication and installation.

Build mockup of typical roof eave, including gutter, fascia and fascia trim, approximately

10 feet long, including supporting construction cleats, seams, attachments, underlayment, and

accessories.

Approval of mockups does not constitute approval of deviations from the Contract Doc-

uments contained in mockups unless Architect specifically approves such deviations in writing.

Approved mockups may become part of the completed Work if undisturbed at time of

Substantial Completion.

E. PREINSTALLATION CONFERENCE:


1. Meet with Owner, Architect, Owner's insurer if applicable, Installer, and

installers whose work interfaces with or affects sheet metal flashing and

trim including installers of roofing materials, roof accessories, unit sky-

lights, and roof-mounted equipment.

2. Review methods and procedures related to sheet metal flashing and trim.

3. Examine substrate conditions for compliance with requirements, including

flatness and attachment to structural members.

SHEET METAL

FLASHING AND TRIM


4. Review special roof details, roof drainage, roof penetrations, equipment

curbs, and condition of other construction that will affect sheet metal

flashing.

5. Document proceedings, including corrective measures and actions re-

quired, and furnish copy of record to each participant.


Do not store sheet metal flashing and trim materials in contact with other materials that

might cause staining, denting, or other surface damage. Store sheet metal flashing and trim ma-

terials away from uncured concrete and masonry.

Protect strippable protective covering on sheet metal flashing and trim from exposure to

sunlight and high humidity, except to the extent necessary for the period of sheet metal flashing

and trim installation.

1.07 WARRANTY

A. SPECIAL WARRANTY ON FINISHES:

Manufacturer's standard form in which manufacturer agrees to repair finish or replace

sheet metal flashing and trim that shows evidence of deterioration of factory-applied finishes

within specified warranty period.

1. EXPOSED PANEL FINISH: Deterioration includes, but is not limited to,

the following:

a. Color fading more than 5 Hunter units when tested according to

ASTM D 2244.

b. Chalking in excess of a No. 8 rating when tested according to

ASTM D 4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare

metal.

2. FINISH WARRANTY PERIOD: 20 years from date of Substantial Com-

pletion.

SHEET METAL

FLASHING AND TRIM


PART 2 – PRODUCTS

2.01 SHEET METALS

A. GENERAL:

Protect mechanical and other finishes on exposed surfaces from damage by applying a

strippable, temporary protective film before shipping.

B. ALUMINUM SHEET:

ASTM B 209, alloy as standard with manufacturer for finish required, with temper as re-

quired to suit forming operations and performance required.

1. SURFACE: Smooth, flat.

2. EXPOSED COIL-COATED FINISHES: Two-Coat Fluoropolymer:

AAMA 620. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in

color coat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating

and resin manufacturers' written instructions.

3. COLOR: Clear Anodized.

4. CONCEALED FINISH: Pretreat with manufacturer's standard white or

light-colored acrylic or polyester backer finish, consisting of prime coat and wash coat with a

minimum total dry film thickness of 0.5 mil.

2.02 UNDERLAYMENT MATERIALS

A. POLYETHYLENE SHEET:

Six-mil-thick polyethylene sheet complying with ASTM D 4397.

B. FELT:

ASTM D 226, Type II (No. 30), asphalt-saturated organic felt, nonperforated.

C. SELF-ADHERING, HIGH-TEMPERATURE SHEET:

Minimum 30 to 40 mils thick, consisting of slip-resisting polyethylene-film top surface

laminated to layer of butyl or SBS-modified asphalt adhesive, with release-paper backing; cold

applied. Provide primer when recommended by underlayment manufacturer.

1. THERMAL STABILITY: ASTM D 1970; stable after testing at 240

deg F.

SHEET METAL

FLASHING AND TRIM


2. LOW-TEMPERATURE FLEXIBILITY: ASTM D 1970; passes after

testing at minus 20 deg F.

D. SLIP SHEET:

Building paper, 3-lb/100 sq. ft. minimum, rosin sized.

2.03 MISCELLANEOUS MATERIALS

A. GENERAL:

Provide materials and types of fasteners, solder, welding rods, protective coatings, sepa-

rators, sealants, and other miscellaneous items as required for complete sheet metal flashing and

trim installation and recommended by manufacturer of primary sheet metal or manufactured item

unless otherwise indicated.

B. FASTENERS:

Wood screws, annular threaded nails, self-tapping screws, self-locking rivets and bolts,

and other suitable fasteners designed to withstand design loads and recommended by manufac-

turer of primary sheet metal or manufactured item.

1. GENERAL: Blind fasteners or self-drilling screws, gasketed, with hex-

washer head.

a. EXPOSED FASTENERS: Heads matching color of sheet metal using

plastic caps or factory-applied coating.

b. BLIND FASTENERS: High-strength aluminum or stainless-steel riv-

ets suitable for metal being fastened.

c. SPIKES AND FERRULES: Same material as gutter; with spike with

ferrule matching internal gutter width.

2. FASTENERS FOR ALUMINUM SHEET: Aluminum or Series 300

stainless steel.

3. FASTENERS FOR ZINC-TIN ALLOY-COATED STAINLESS-STEEL

SHEET: Series 300 stainless steel.

4. FASTENERS FOR ZINC-COATED (GALVANIZED) OR

ALUMINUM-ZINC ALLOY-COATED STEEL SHEET: Hot-dip galvanized steel according to

ASTM A 153/A 153M or ASTM F 2329 or Series 300 stainless steel.

SHEET METAL

FLASHING AND TRIM


C. SOLDER:

1. FOR STAINLESS STEEL: ASTM B 32, Grade Sn60, with an acid flux

of type recommended by stainless-steel sheet manufacturer.

2. FOR ZINC-TIN ALLOY-COATED STAINLESS STEEL: ASTM B 32,

100 percent tin.

3. FOR ZINC-COATED (GALVANIZED) STEEL: ASTM B 32,

Grade Sn50, 50 percent tin and 50 percent lead or Grade Sn60, 60 percent tin and 40 percent

lead.

D. SEALANT TAPE:

Pressure-sensitive, 100 percent solids, gray polyisobutylene compound sealant tape with

release-paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape 1/2 inch

wide and 1/8 inch thick.

E. ELASTOMERIC SEALANT:

ASTM C 920, elastomeric polyurethane or silicone polymer sealant; low modulus; of

type, grade, class, and use classifications required to seal joints in sheet metal flashing and trim

and remain watertight.

F. BUTYL SEALANT:

ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene

plasticized; heavy bodied for hooked-type expansion joints with limited movement.

G. EPOXY SEAM SEALER:

Two-part, noncorrosive, aluminum seam-cementing compound, recommended by alumi-

num manufacturer for exterior nonmoving joints, including riveted joints.

H. BITUMINOUS COATING:

Cold-applied asphalt emulsion complying with ASTM D 1187.

I. ASPHALT ROOFING CEMENT:

ASTM D 4586, asbestos free, of consistency required for application.

SHEET METAL

FLASHING AND TRIM


2.04 MANUFACTURED SHEET METAL FLASHING AND TRIM

A. REGLETS:

Units of type, material, and profile indicated, formed to provide secure interlocking of

separate reglet and counterflashing pieces, and compatible with flashing indicated with factory-

mitered and -welded corners and junctions, with interlocking counterflashing on exterior face, of

same metal as reglet.

1. MATERIAL: Aluminum, 0.024 inch thick

2. CONCRETE TYPE: Provide temporary closure tape to keep reglet free of

concrete materials, special fasteners for attaching reglet to concrete forms, and guides to ensure

alignment of reglet section ends.

3. ACCESSORIES:

a. FLEXIBLE-FLASHING RETAINER: Provide resilient plastic or

rubber accessory to secure flexible flashing in reglet where clearance does not permit use of

standard metal counterflashing or where Drawings show reglet without metal counterflashing.

b. COUNTERFLASHING WIND-RESTRAINT CLIPS: Provide clips to

be installed before counterflashing to prevent wind uplift of counterflashing lower edge.

4. FINISH: Mill or With manufacturer's standard color coating as selected

by Architect.

2.05 FABRICATION, GENERAL

A. GENERAL:

Custom fabricate sheet metal flashing and trim to comply with recommendations in

SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, geometry,

metal thickness, and other characteristics of item indicated. Fabricate items at the shop to great-

est extent possible.

Fabricate sheet metal flashing and trim in thickness or weight needed to comply with per-

formance requirements, but not less than that specified for each application and metal.

Obtain field measurements for accurate fit before shop fabrication.

Form sheet metal flashing and trim without excessive oil canning, buckling, and tool

marks and true to line and levels indicated, with exposed edges folded back to form hems.

Conceal fasteners and expansion provisions where possible. Exposed fasteners are not

allowed on faces exposed to view.

SHEET METAL

FLASHING AND TRIM


B. FABRICATION TOLERANCES:

Fabricate sheet metal flashing and trim that is capable of installation to a tolerance of 1/4

inch in 20 feet on slope and location lines as indicated and within 1/8-inch offset of adjoining

faces and of alignment of matching profiles.

C. FABRICATION TOLERANCES:

Fabricate sheet metal flashing and trim that is capable of installation to tolerances speci-

fied in MCA's "Guide Specification for Residential Metal Roofing."

D. SEALED JOINTS:

Form nonexpansion but movable joints in metal to accommodate elastomeric sealant.

E. EXPANSION PROVISIONS:

Where lapped expansion provisions cannot be used, form expansion joints of intermesh-

ing hooked flanges, not less than 1 inch deep, filled with butyl sealant concealed within joints.

Fabricate cleats and attachment devices from same material as accessory being anchored

or from compatible, noncorrosive metal.

Fabricate cleats and attachment devices of sizes as recommended by SMACNA's "Archi-

tectural Sheet Metal Manual" and by FMG Loss Prevention Data Sheet 1-49 for application, but

not less than thickness of metal being secured.

F. SEAMS:

Fabricate nonmoving seams with flat-lock seams. Tin edges to be seamed, form seams,

and solder.

Fabricate nonmoving seams with flat-lock seams. Form seams and seal with elastomeric

sealant unless otherwise recommended by sealant manufacturer for intended use. Rivet joints

where necessary for strength.

G. SEAMS FOR ALUMINUM:

Fabricate nonmoving seams with flat-lock seams. Form seams and seal with epoxy seam

sealer. Rivet joints where necessary for strength.

Do not use graphite pencils to mark metal surfaces.

SHEET METAL

FLASHING AND TRIM


2.06 ROOF DRAINAGE SHEET METAL FABRICATIONS

A. DOWNSPOUTS:

Fabricate round downspouts complete with mitered elbows. Furnish with metal anchors,

from same material as downspouts, and anchors.

1. Fabricated Anchor: As indicated.

2. Fabricate from the following materials:

a. Galvanized Steel: Schedule 40 Steel Pipe, hot-dipped galvanized.

B. CONDUCTOR HEADS:

Fabricate conductor heads with flanged back and stiffened top edge and of dimensions

and shape indicated complete with outlet tubes, exterior flange trim, and built-in overflows. Fab-

ricate from the following materials:

1. GALVANIZED STEEL: 0.336 inch thick.

2. ALUMINUM-ZINC ALLOY-COATED STEEL: 0.336 inch thick.

C. SPLASH PANS:

Fabricate from the following materials:

1. ZINC-TIN ALLOY-COATED STAINLESS STEEL: 0.024 inch thick.

2.07 LOW-SLOPE ROOF SHEET METAL FABRICATIONS

A. COPINGS:

Fabricate in minimum 96-inch- long, but not exceeding 10-foot- long, sections. Fabricate

joint plates of same thickness as copings. Furnish with continuous cleats to support edge of ex-

ternal leg and drill elongated holes for fasteners on interior leg. Miter corners, seal, and solder or

weld watertight.

1. COPING PROFILE: SMACNA figure designation 3-4A or as indicated.

2. JOINT STYLE: Butt, with 12-inch- wide, concealed backup plate.

3. Fabricate from the following materials:

a. Aluminum-Zinc Alloy-Coated Steel: 0.040 inch thick.

SHEET METAL

FLASHING AND TRIM


B. ROOF AND ROOF TO WALL TRANSITION, ROOF TO ROOF EDGE

FLASHING (GRAVEL STOP) TRANSITION, AND ROOF TO ROOF EDGE

FLASHING (GRAVEL STOP) AND FASCIA CAP TRANSITION

EXPANSION-JOINT COVER:



C. BASE FLASHING:



D. COUNTERFLASHING:



E. FLASHING RECEIVERS:



F. ROOF-PENETRATION FLASHING:



G. ROOF-DRAIN FLASHING:



2.08 WALL SHEET METAL FABRICATIONS

A. OPENING FLASHINGS IN FRAME CONSTRUCTION:

Fabricate head, sill, jamb, and similar flashings to extend 4 inches beyond wall openings.

Form head and sill flashing with 2-inch- high, end dams. Fabricate from the following materials:

SHEET METAL

FLASHING AND TRIM



2.09 MISCELLANEOUS SHEET METAL FABRICATIONS

A. EQUIPMENT SUPPORT FLASHING:



B. OVERHEAD-PIPING SAFETY PANS:


1. GALVANIZED STEEL: 0.040 inch thick.


3.01 EXAMINATION

Examine substrates, areas, and conditions, with Installer present, to verify actual loca-

tions, dimensions and other conditions affecting performance of the Work.

1. Verify compliance with requirements for installation tolerances of sub-

strates.

2. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and

securely anchored.

For the record, prepare written report, endorsed by Installer, listing conditions detrimental

to performance of the Work.


3.02 UNDERLAYMENT INSTALLATION

A. GENERAL:

Install underlayment as indicated on Drawings.

B. POLYETHYLENE SHEET:

Install polyethylene sheet with adhesive for anchorage to minimize use of mechanical

fasteners under sheet metal flashing and trim. Apply in shingle fashion to shed water, with

lapped and taped joints of not less than 2 inches.

SHEET METAL

FLASHING AND TRIM


C. FELT UNDERLAYMENT:

Install felt underlayment with adhesive for temporary anchorage to minimize use of me-

chanical fasteners under sheet metal flashing and trim. Apply in shingle fashion to shed water,

with lapped joints of not less than 2 inches.

D. SELF-ADHERING SHEET UNDERLAYMENT:

Install self-adhering sheet underlayment, wrinkle free. Apply primer if required by un-

derlayment manufacturer. Comply with temperature restrictions of underlayment manufacturer

for installation; use primer rather than nails for installing underlayment at low temperatures.

Apply in shingle fashion to shed water, with end laps of not less than 6 inches staggered 24 inch-

es between courses. Overlap side edges not less than 3-1/2 inches. Roll laps with roller. Cover

underlayment within 14 days.

3.03 INSTALLATION, GENERAL

A. GENERAL:

Anchor sheet metal flashing and trim and other components of the Work securely in

place, with provisions for thermal and structural movement. Use fasteners, solder, welding rods,

protective coatings, separators, sealants, and other miscellaneous items as required to complete

sheet metal flashing and trim system.

1. Install sheet metal flashing and trim true to line and levels indicated. Pro-

vide uniform, neat seams with minimum exposure of solder, welds, and

sealant.

2. Install sheet metal flashing and trim to fit substrates and to result in water-

tight performance. Verify shapes and dimensions of surfaces to be cov-

ered before fabricating sheet metal.

3. Space cleats not more than 12 inches apart. Anchor each cleat with two

fasteners. Bend tabs over fasteners.

4. Install exposed sheet metal flashing and trim without excessive oil can-

ning, buckling, and tool marks.

5. Install sealant tape where indicated.

6. Torch cutting of sheet metal flashing and trim is not permitted.

7. Do not use graphite pencils to mark metal surfaces.

SHEET METAL

FLASHING AND TRIM


B. METAL PROTECTION:

Where dissimilar metals will contact each other or corrosive substrates, protect against

galvanic action by painting contact surfaces with bituminous coating or by other permanent sepa-

ration as recommended by SMACNA.

1. Coat back side of uncoated aluminum and stainless-steel sheet metal flash-

ing and trim with bituminous coating where flashing and trim will contact

wood, ferrous metal, or cementitious construction.

2. UNDERLAYMENT: Where installing metal flashing directly on cementi-

tious or wood substrates, install a course of felt underlayment and cover

with a slip sheet or install a course of polyethylene sheet.

C. EXPANSION PROVISIONS:

Provide for thermal expansion of exposed flashing and trim. Space movement joints at a

maximum of 10 feet with no joints allowed within 24 inches of corner or intersection. Where

lapped expansion provisions cannot be used or would not be sufficiently watertight, form expan-

sion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with sealant con-

cealed within joints.

D. FASTENER SIZES:

Use fasteners of sizes that will penetrate wood sheathing not less than 1-1/4 inches for

nails and not less than 3/4 inch for wood screws.

Seal joints as shown and as required for watertight construction.

1. Where sealant-filled joints are used, embed hooked flanges of joint mem-

bers not less than 1 inch into sealant. Form joints to completely conceal

sealant. When ambient temperature at time of installation is moderate, be-

tween 40 and 70 deg F, set joint members for 50 percent movement each

way. Adjust setting proportionately for installation at higher ambient

temperatures. Do not install sealant-type joints at temperatures below 40

deg F.

2. Prepare joints and apply sealants to comply with requirements in Divi-

sion 07 Section "Joint Sealants."

E. SOLDERED JOINTS:

Clean surfaces to be soldered, removing oils and foreign matter. Pre-tin edges of sheets

to be soldered to a width of 1-1/2 inches, except reduce pre-tinning where pre-tinned surface

would show in completed Work.

SHEET METAL

FLASHING AND TRIM


1. Do not solder metallic-coated steel and aluminum sheet.

2. Pre-tinning is not required for zinc-tin alloy-coated stainless steel.

3. Do not use torches for soldering. Heat surfaces to receive solder and flow

solder into joint. Fill joint completely. Completely remove flux and spat-

ter from exposed surfaces.

4. STAINLESS-STEEL SOLDERING: Tin edges of uncoated sheets using

solder recommended for stainless steel and acid flux. Promptly remove

acid flux residue from metal after tinning and soldering. Comply with

solder manufacturer's recommended methods for cleaning and neutraliza-

tion.

F. RIVETS:

Rivet joints in uncoated aluminum where indicated and where necessary for strength.

3.04 ROOF DRAINAGE SYSTEM INSTALLATION

A. GENERAL:

Install sheet metal roof drainage items to produce complete roof drainage system accord-

ing to SMACNA recommendations and as indicated. Coordinate installation of roof perimeter

flashing with installation of roof drainage system.

B. DOWNSPOUTS:

Join sections with 1-1/2-inch telescoping joints.

1. Provide hangers with fasteners designed to hold downspouts securely to walls as

indicated. Locate hangers at top and bottom and at approximately 60 inches o.c.

in between.

2. Provide elbows at base of downspout to direct water away from building.

3. Connect downspouts to underground drainage system indicated.

C. SPLASH PANS:

Install where downspouts discharge on low-slope roofs. Set in asphalt roofing cement

compatible with roofing membrane.

D. CONDUCTOR HEADS:

Anchor securely to wall with elevation of conductor head rim 1 inch below scupper or

gutter discharge.

SHEET METAL

FLASHING AND TRIM


E. EXPANSION-JOINT COVERS:

Install expansion-joint covers at locations and of configuration indicated. Lap joints a

minimum of 4 inches in direction of water flow.

3.05 ROOF FLASHING INSTALLATION

A. GENERAL:

Install sheet metal flashing and trim to comply with performance requirements, sheet

metal manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Met-

al Manual." Provide concealed fasteners where possible, set units true to line, and level as indi-

cated. Install work with laps, joints, and seams that will be permanently watertight and weather

resistant.

B. ROOF EDGE FLASHING:

Anchor to resist uplift and outward forces according to recommendations in SMACNA's

"Architectural Sheet Metal Manual" and as indicated. Interlock bottom edge of roof edge flash-

ing with continuous cleat anchored to substrate at staggered 3-inch centers.

C. ROOF EDGE FLASHING:

Anchor to resist uplift and outward forces according to recommendations in FMG Loss

Prevention Data Sheet 1-49 for specified wind zone and as indicated. Interlock bottom edge of

roof edge flashing with continuous cleat anchored to substrate at 16-inch centers.

D. COPINGS:

Anchor to resist uplift and outward forces according to recommendations in FMG Loss

Prevention Data Sheet 1-49 for specified wind zone and as indicated.

1. Interlock exterior bottom edge of coping with continuous cleat anchored to

substrate at 16-inch centers.

2. Anchor interior leg of coping with screw fasteners and washers at 20-inch

centers.

E. PIPE OR POST COUNTERFLASHING:

Install counterflashing umbrella with close-fitting collar with top edge flared for elasto-

meric sealant, extending a minimum of 4 inches over base flashing. Install stainless-steel draw

band and tighten.

SHEET METAL

FLASHING AND TRIM


F. COUNTERFLASHING:

Coordinate installation of counterflashing with installation of base flashing. Insert coun-

terflashing in reglets or receivers and fit tightly to base flashing. Extend counterflashing 4 inches

over base flashing. Lap counterflashing joints a minimum of 4 inches and bed with sealant. Se-

cure in a waterproof manner by means of snap-in installation and sealant or lead wedges and

sealant.

G. ROOF-PENETRATION FLASHING:

Coordinate installation of roof-penetration flashing with installation of roofing and other

items penetrating roof. Seal with elastomeric or butyl sealant and clamp flashing to pipes that

penetrate roof.

3.06 WALL FLASHING INSTALLATION

A. GENERAL:

Install sheet metal wall flashing to intercept and exclude penetrating moisture according

to SMACNA recommendations and as indicated. Coordinate installation of wall flashing with

installation of wall-opening components such as windows, doors, and louvers.

B. REGLETS:

Installation of reglets is specified in Division 03 Section "Cast-in-Place Concrete."

C. OPENING FLASHINGS IN FRAME CONSTRUCTION:

Install continuous head, sill, jamb, and similar flashings to extend 4 inches beyond wall

openings.

3.07 MISCELLANEOUS FLASHING INSTALLATION

A. OVERHEAD-PIPING SAFETY PANS:

Suspend pans independent from structure above as indicated on Drawings. Pipe and in-

stall drain line to plumbing waste or drainage system.

B. EQUIPMENT SUPPORT FLASHING:

Coordinate installation of equipment support flashing with installation of roofing and

equipment. Weld or seal flashing with elastomeric sealant to equipment support member.

SHEET METAL

FLASHING AND TRIM


3.08 ERECTION TOLERANCES

A. INSTALLATION TOLERANCES:

Shim and align sheet metal flashing and trim within installed tolerance of 1/4 inch in 20

feet on slope and location lines as indicated and within 1/8-inch offset of adjoining faces and of

alignment of matching profiles.

B. INSTALLATION TOLERANCES:

Shim and align sheet metal flashing and trim within installed tolerances specified in

MCA's "Guide Specification for Residential Metal Roofing."

3.09 CLEANING AND PROTECTION

Clean exposed metal surfaces of substances that interfere with uniform oxidation and

weathering.

Clean and neutralize flux materials. Clean off excess solder.

Clean off excess sealants.

Remove temporary protective coverings and strippable films as sheet metal flashing and

trim are installed unless otherwise indicated in manufacturer's written installation instructions.

On completion of installation, remove unused materials and clean finished surfaces. Maintain in

a clean condition during construction.

Replace sheet metal flashing and trim that have been damaged or that have deteriorated

beyond successful repair by finish touchup or similar minor repair procedures.

**END OF SECTION**

SHEET METAL

FLASHING AND TRIM



ROOF ACCESSORIES


SECTION 07720

ROOF ACCESSORIES

PART 1 – GENERAL




1.02 SUMMARY

This Section includes the following:

1. Roof hatches.


1. Division 5 Section "Metal Fabrications" for metal vertical ladders for ac-

cess to roof hatches.

2. Division 6 Section "Rough Carpentry" for roof sheathing, wood cants, and

wood nailers.

3. Division 7 Section "Sheet Metal Flashing and Trim" for shop- and field-

fabricated metal flashing and counterflashing, roof expansion-joint covers,

and miscellaneous sheet metal trim and accessories.

4. Division 8 Section "Unit Skylights" for small individual skylights.

A. PRODUCT DATA:

For each type of roof accessory indicated. Include construction details, material descrip-

tions, dimensions of individual components and profiles, and finishes.

B. SHOP DRAWINGS:

Show fabrication and installation details for roof accessories. Show layouts of roof ac-

cessories including plans and elevations. Indicate dimensions, weights, loadings, required clear-

ances, method of field assembly, and components. Include plans, elevations, sections, details,

and attachments to other work.

ROOF ACCESSORIES


C. COORDINATION DRAWINGS:

Roof plans, drawn to scale, and coordinating penetrations and roof-mounted items. Show

the following:

1. Size and location of roof accessories specified in this Section.

2. Method of attaching roof accessories to roof or building structure.

3. Other roof-mounted items including mechanical and electrical equipment,

ductwork, piping, and conduit.

D. SAMPLES:

For each type of exposed factory-applied color finish required and for each type of roof

accessory indicated, prepared on Samples of size to adequately show color.

E. WARRANTY:

Special warranty specified in this Section.


A. SHEET METAL STANDARD:

Comply with SMACNA's "Architectural Sheet Metal Manual" details for fabrication of

units, including flanges and cap flashing to coordinate with type of roofing indicated.


Pack, handle, and ship roof accessories properly labeled in heavy-duty packaging to pre-

vent damage.


A. FIELD MEASUREMENTS:

Verify required openings for each type of roof accessory by field measurements before

fabrication and indicate measurements on Shop Drawings.

1.06 COORDINATION

Coordinate layout and installation of roof accessories with roofing membrane and base

flashing and interfacing and adjoining construction to provide a leakproof, weathertight, secure,

and noncorrosive installation.

ROOF ACCESSORIES


With Architect's approval, adjust location of roof accessories that would interrupt roof

drainage routes.

1.07 WARRANTY

Manufacturer’s standard warranty: Materials shall be free of defects in material and

workmanship for a period of five years from the date of purchase. Should a part fail to function

in normal use within this period, manufacturer shall furnish a new part at no charge. Electrical

motors, special finishes, and other special equipment (if applicable) shall be warranted separately

by the manufacturers of those products.

PART 2 – PRODUCTS

2.01 MANUFACTURERS

A. MANUFACTURERS:

Subject to compliance with requirements, provide products by one of the manufacturers

listed in other Part 2 articles.

B. ROOF HATCHES:

Fabricate roof hatches with insulated double-wall lids and insulated double-wall curb

frame with integral deck mounting flange and lid frame counterflashing. Fabricate with welded

or mechanically fastened and sealed corner joints. Provide continuous weathertight perimeter

gasketing and equip with corrosion-resistant or hot-dip galvanized hardware.

1. MANUFACTURERS:

a. Bilco Company (The).

b. Bristolite Skylights.

c. Custom Curb, Inc.

d. Dur-Red Products.

e. J. L. Industries, Inc.

f. Metallic Products Corporation.

g. Milcor Inc.; a Gibraltar Company.

h. Nystrom, Inc.

i. O'Keeffe's Inc.

j. Precision Ladders, LLC.

2. LOADS: Fabricate roof hatches to withstand 40-lbf/sq. ft. external and

20-lbf/sq. ft. internal loads.

3. TYPE AND SIZE: Single-leaf lid, 48 by 48 inches.

ROOF ACCESSORIES


4. CURB AND LID MATERIAL: Galvanized or Aluminum-zinc alloy-

coated steel sheet, 0.079 inch thick.

5. FINISH: Baked enamel.

6. INSULATION: Glass-fiber board.

7. INTERIOR LID LINER: Manufacturer's standard metal liner of same ma-

terial and finish as outer metal lid.

8. EXTERIOR CURB LINER: Manufacturer's standard metal liner of same

material and finish as metal curb.

Fabricate units to minimum height of 12 inches, unless otherwise indicated.

9. SLOPING ROOFS: Where slope or roof deck exceeds 1:48, fabricate

hatch curbs with height constant.

10. HARDWARE: Galvanized steel spring latch with turn handles, butt- or

pintle-type hinge system, and padlock hasps inside and outside.

11. LADDER SAFETY POST: Manufacturer's standard ladder safety post.

Post to lock in place on full extension. Provide release mechanism to return post to closed posi-

tion.

a. Test Load: Comply with CBC and OSHA requirements.

b. Height: 42 inches.

c. Material and Finish: Steel tube, galvanized.

d. Diameter: Pipe with 1-5/8-inch OD tube.

12 SAFETY RAILING SYSTEM: Manufacturer's standard complete system

including rails, clamps, fasteners, safety barrier at railing opening, and all accessories required

for a complete installation.

a. TEST LOAD: Comply with CBC and OSHA requirements.

b. HEIGHT: 42 inches above finished roof deck.

c. PIPE OR TUBE: 1-1/4-inch ID galvanized pipe or 1-5/8-inch OD

galvanized tube.

d. FLAT BAR: 2-inch- high by 3/8-inch- thick galvanized steel.

e. CHAIN PASSWAY ENCLOSURE: Galvanized proof coil chain

with quick link on fixed end.

ROOF ACCESSORIES


f. PIPE ENDS AND TOPS: Covered or plugged with weather-

resistant material.

Provide weep holes or another means to drain entrapped water in hollow

sections of handrail and railing members that are exposed to exterior or to moisture from con-

densation or other sources.

Fabricate joints that will be exposed to weather in a watertight manner.

Close exposed ends of handrail and railing members with prefabricated

end fittings.

g. FASTENERS: Manufacturer's standard.


3.01 EXAMINATION

Examine substrates, areas, and conditions, with Installer present, to verify actual loca-

tions, dimensions, and other conditions affecting performance of work.

Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and securely an-

chored and is ready to receive roof accessories.

Verify dimensions of roof openings for roof accessories.


3.02 INSTALLATION

A. GENERAL:

Install roof accessories according to manufacturer's written instructions. Anchor roof ac-

cessories securely in place and capable of resisting forces specified. Use fasteners, separators,

sealants, and other miscellaneous items as required for completing roof accessory installation.

Install roof accessories to resist exposure to weather without failing, rattling, leaking, and fasten-

er disengagement.

Install roof accessories to fit substrates and to result in watertight performance.

B. METAL PROTECTION:

Where dissimilar metals will contact each other or corrosive substrates, protect against

galvanic action by painting contact surfaces with bituminous coating or by other permanent sepa-

ration as recommended by manufacturer.

ROOF ACCESSORIES


1. Coat concealed side of uncoated aluminum or stainless-steel roof accesso-

ries with bituminous coating where in contact with wood, ferrous metal, or

cementitious construction.

2. Underlayment: Where installing exposed-to-view components of roof ac-

cessories directly on cementitious or wood substrates, install a course of

felt underlayment and cover with a slip sheet, or install a course of poly-

ethylene underlayment.

3. Bed flanges in thick coat of asphalt roofing cement where required by roof

accessory manufacturers for waterproof performance.

Install roof accessories level, plumb, true to line and elevation, and without warping, jogs

in alignment, excessive oil canning, buckling, or tool marks.

C. ROOF HATCH INSTALLATION:

Check roof hatch for proper operation. Adjust operating mechanism as required. Clean

and lubricate joints and hardware.

Attach safety railing system to roof hatch curb.

Attach ladder safety post according to manufacturer's written instructions.

Seal joints with elastomeric or butyl sealant as required by manufacturer of roof accesso-

ries.

3.03 TOUCH UP

Touch up factory-primed surfaces with compatible primer ready for field painting in ac-

cordance with Division 9 painting Sections.

A. GALVANIZED SURFACES:

Clean field welds, bolted connections, and abraded areas and repair galvanizing to com-

ply with ASTM A 780.

3.04 CLEANING

Clean exposed surfaces according to manufacturer's written instructions.

**END OF SECTION**

SEALANTS


SECTION 07900

SEALANTS

PART 1 -- GENERAL

1.01 DESCRIPTION

This section specifies sealants for manholes, vaults, and other structures.


A. REFERENCES:

This section contains references to the following documents. They are a part of this section

as specified and modified. Where a referenced document contains references to other standards,

those documents are included as references under this section as if referenced directly. In the event

of conflict between the requirements of this section and those of the listed documents, the

requirements of this section shall prevail.

Unless otherwise specified, references to documents shall mean the documents in effect at

the time of Advertisement for Bids or Invitation to Bid (or on the effective date of the Agreement if

there were no Bids). If referenced documents have been discontinued by the issuing organization,

references to those documents shall mean the replacement documents issued or otherwise identified

by that organization or, if there are no replacement documents, the last version of the document

before it was discontinued. Where document dates are given in the following listing, references to

those documents shall mean the specific document version associated with that date, regardless of

whether the document has been superseded by a version with a later date, discontinued or replaced.

Reference Title

FEDSPEC TT-S-00230C Sealing Compound: Elastomeric Type, Single Component

FEDSPEC TT-S-00227E Sealing Compound: Elastomeric Type, Multi-Component

PART 2 -- PRODUCTS

2.01 POLYURETHANE SEALANT

A. ACCEPTABLE PRODUCTS:

Acceptable products shall be Sikaflex by Sika Chemical Corporation, Vulkem by Mameco

International, U-Seal Joint Sealant by Burke Company, or Rubber Calk by Products Research and

Chemical Corporation.

SEALANTS


B. GENERAL:

Polyurethane sealants shall conform to FEDSPEC TT-S-0230C for one-component systems

and FEDSPEC TT-S-00227E for two-component systems. Polyurethane sealant shall be one of the

following two types.

1. SELF-LEVELING: Self-leveling polyurethane sealant shall be Type I,

Class A as specified by the FEDSPECs referenced above.

2. NONSAG: Nonsag polyurethane sealant shall be Type II, Class A as

specified by the FEDSPECs referenced above.

C. PRIMER:

Primer shall be as recommended by the sealant manufacturer.

D. BACKER ROD OR BACKER TAPE:

Backer rod shall be open cell polyethylene or polyurethane foam. Rod shall be cylindrical

unless otherwise specified. Backer tape shall be polyethylene or polyurethane with adhesive on one

side.

2.02 MASTIC SEALANT

A. GENERAL:

Mastic joint sealant shall consist of a blend of refined asphalts, resins and plasticizing

compounds, reinforced with fiber. Sealant shall be compatible with joint fillers and shall be

pressure grade.

B. PRIMER:

Primer shall be as recommended by the mastic sealant manufacturer.

2.03 PRODUCT DATA

The following information shall be provided in accordance with Section 01300:

1. Manufacturer's product data showing conformance to the specified products.

2. Manufacturer's recommendations for storage, handling and application of

sealants and primers.

SEALANTS


PART 3 -- EXECUTION

3.01 GENERAL

Sealants and primers shall be applied according to the sealant manufacturer's

recommendations. Polyurethane sealants shall be used on all expansion joints and specified

construction joints.

Joints and spaces to be sealed shall be clean, dry and free of dust, loose mortar, concrete and

plaster. Additional preparation of joints and spaces shall be provided in accordance with

manufacturer's recommendations. Primer shall be applied only to the surfaces that will be covered

by the sealant.

3.02 POLYURETHANE SEALANTS

A. GENERAL:

Nonsag polyurethane sealants shall be used on vertical joints. Self-leveling polyurethane

sealants shall be used on horizontal joints.

B. JOINT DIMENSIONS:

Unless otherwise specified, joints and spaces to be filled shall be constructed to the

following criteria. Joints and spaces shall have a minimum width of 1/4 inch and a maximum width

of 1 inch. The depth of the sealant shall be one-half the width of the joint, but in no case less than

1/4 inch deep. Sealant depth shall be measured at the point of smallest cross section. When joints

exceed the depth requirements, backing rod shall be inserted to provide the joint depth specified. If

the joint sealant depth is within the specified tolerances, backer tape shall be placed in the bottom of

the joint.

3.03 MASTIC SEALANT

A. JOINT DIMENSIONS:

Joints to be sealed shall be 2 inches deep, 1 inch wide at the top, and 3/4 inch wide at the

base.

** END OF SECTION **

SEALANTS



ARCHITECTURAL

JOINT SEALANTS


SECTION 07920

ARCHITECTURAL JOINT SEALANTS

PART 1 – GENERAL




1.02 SUMMARY

This Section includes joint sealants for the following applications, including those speci-

fied by reference to this Section:

1. Exterior joints in the following vertical surfaces and horizontal nontraffic

surfaces:

a. Construction joints in the cast-in-place concrete.

b. Control and expansion joints in unit masonry.

c. Joints between different materials listed above.

d. Other joints as indicated.

2. Interior joints in the following vertical surfaces and horizontal nontraffic

surfaces:

a. Control and expansion joints on exposed interior surfaces of exte-

rior walls.

b. Perimeter joints of exterior openings where indicated.

c. Vertical joints on exposed surfaces of interior unit masonry walls

and partitions.

d. Joints between plumbing fixtures and adjoining walls, floors, and

counters.

e. Other joints as indicated.

3. Interior joints in the following horizontal traffic surfaces:

a. Isolation joints in cast-in-place concrete slabs.

b. Other joints as indicated.

ARCHITECTURAL

JOINT SEALANTS



1. Division 9 Section "Gypsum Board Assemblies" for sealing perimeter

joints of gypsum board partitions to reduce sound transmission.


Provide elastomeric joint sealants that establish and maintain watertight and airtight con-

tinuous joint seals without staining or deteriorating joint substrates.

Provide joint sealants for interior applications that establish and maintain airtight and wa-

ter-resistant continuous joint seals without staining or deteriorating joint substrates.



Manufacturer's authorized Installer who is approved or licensed for installation of elas-

tomeric sealants required for this Project.


Obtain each type of joint sealant through one source from a single manufacturer.


Do not proceed with installation of joint sealants under the following conditions:

1. When ambient and substrate temperature conditions are outside limits

permitted by joint-sealant manufacturer or are below 40 deg F.

2. When joint substrates are wet.

3. Where joint widths are less than those allowed by joint-sealant manufac-

turer for applications indicated.

4. Contaminants capable of interfering with adhesion have not yet been re-

moved from joint substrates.

ARCHITECTURAL

JOINT SEALANTS


PART 2- PRODUCTS

2.01 MANUFACTURERS

A. PRODUCTS:

Subject to compliance with requirements, provide one of the products listed in other

Part 2 articles.

2.02 MATERIALS, GENERAL

A. COMPATIBILITY:

Provide joint sealants, backings, and other related materials that are compatible with one

another and with joint substrates under conditions of service and application, as demonstrated by

sealant manufacturer, based on testing and field experience.

2.03 ELASTOMERIC JOINT SEALANTS

A. ELASTOMERIC SEALANTS:

Comply with ASTM C 920 and other requirements indicated for each liquid-applied

chemically curing sealant specified, including those referencing ASTM C 920 classifications for

type, grade, class, and uses related to exposure and joint substrates.

B. STAIN-TEST-RESPONSE CHARACTERISTICS:

Where elastomeric sealants are specified to be nonstaining to porous substrates, provide

products that have undergone testing according to ASTM C 1248 and have not stained porous

joint substrates indicated for Project.

C. SUITABILITY FOR CONTACT WITH FOOD:

Where elastomeric sealants are indicated for joints that will come in repeated contact

with food, provide products that comply with 21 CFR 177.2600.

D. SINGLE-COMPONENT NEUTRAL-CURING SILICONE SEALANT:

1. PRODUCTS:

a. Dow Corning Corporation; 790.

b. GE Silicones; SilPruf LM SCS2700.

c. Pecora Corporation; 864.

d. Pecora Corporation; 890.

e. Tremco; Spectrem 3.

ARCHITECTURAL

JOINT SEALANTS


2. TYPE AND GRADE: S (single component) and NS (nonsag).

3. CLASS: 50.

4. USE RELATED TO EXPOSURE: NT (nontraffic).

5. USES RELATED TO JOINT SUBSTRATES: M, G, A, and, as applica-

ble to joint substrates indicated, O.

a. USE O JOINT SUBSTRATES: Coated glass, color anodic aluminum,

aluminum coated with a high-performance coating, galvanized steel, marble, ceramic tile, wood,

and sandstone.

6. STAIN-TEST-RESPONSE CHARACTERISTICS: Nonstaining to po-

rous substrates per ASTM C 1248.

7. APPLICATIONS: Exterior vertical and nontraffic horizontal joints. Inte-

rior vertical control and expansion joints.

2.04 LATEX JOINT SEALANTS

A. LATEX SEALANT:

Comply with ASTM C 834, Type P, Grade NF.

B. PRODUCTS:

1. Bostik Findley; Chem-Calk 600.

2. Pecora Corporation; AC-20+.

3. Sonneborn, Division of ChemRex Inc.; Sonolac.

4. Tremco; Tremflex 834.

C. APPLICATION:

Interior non-moving vertical joints.

2.05 JOINT-SEALANT BACKING

A. GENERAL:

Provide sealant backings of material and type that are nonstaining; are compatible with

joint substrates, sealants, primers, and other joint fillers; and are approved for applications indi-

cated by sealant manufacturer based on field experience and laboratory testing.

ARCHITECTURAL

JOINT SEALANTS


B. ELASTOMERIC TUBING SEALANT BACKINGS:

Neoprene, butyl, EPDM, or silicone tubing complying with ASTM D 1056, nonabsorbent

to water and gas, and capable of remaining resilient at temperatures down to minus 26 deg F.

Provide products with low compression set and of size and shape to provide a secondary seal, to

control sealant depth, and to otherwise contribute to optimum sealant performance.

C. BOND-BREAKER TAPE:

Polyethylene tape or other plastic tape recommended by sealant manufacturer for pre-

venting sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of

joint where such adhesion would result in sealant failure. Provide self-adhesive tape where ap-

plicable.

2.06 MISCELLANEOUS MATERIALS

A. PRIMER:

Material recommended by joint-sealant manufacturer where required for adhesion of

sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate

tests and field tests.

B. CLEANERS FOR NONPOROUS SURFACES:

Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials,

free of oily residues or other substances capable of staining or harming joint substrates and adja-

cent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to

joint substrates.

C. MASKING TAPE:

Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent

to joints.


3.01 EXAMINATION

Examine joints indicated to receive joint sealants, with Installer present, for compliance

with requirements for joint configuration, installation tolerances, and other conditions affecting

joint-sealant performance.


ARCHITECTURAL

JOINT SEALANTS


3.02 PREPARATION

A. SURFACE CLEANING OF JOINTS:

Clean out joints immediately before installing joint sealants to comply with joint-sealant

manufacturer's written instructions and the following requirements:

1. Remove all foreign material from joint substrates that could interfere with

adhesion of joint sealant, including dust, paints (except for permanent,

protective coatings tested and approved for sealant adhesion and compati-

bility by sealant manufacturer), old joint sealants, oil, grease, waterproof-

ing, water repellents, water, surface dirt, and frost.

2. Clean porous joint substrate surfaces by brushing, grinding, blast cleaning,

mechanical abrading, or a combination of these methods to produce a

clean, sound substrate capable of developing optimum bond with joint

sealants. Remove loose particles remaining after cleaning operations

above by vacuuming or blowing out joints with oil-free compressed air.

Porous joint substrates include the following:

a. Concrete.

b. Masonry.

3. Remove laitance and form-release agents from concrete.

B. JOINT PRIMING:

Prime joint substrates, where recommended in writing by joint-sealant manufacturer,

based on preconstruction joint-sealant-substrate tests or prior experience. Apply primer to com-

ply with joint-sealant manufacturer's written instructions. Confine primers to areas of joint-

sealant bond; do not allow spillage or migration onto adjoining surfaces.

C. MASKING TAPE:

Use masking tape where required to prevent contact of sealant with adjoining surfaces

that otherwise would be permanently stained or damaged by such contact or by cleaning methods

required to remove sealant smears. Remove tape immediately after tooling without disturbing

joint seal.

3.03 INSTALLATION OF JOINT SEALANTS

A. GENERAL:

Comply with joint-sealant manufacturer's written installation instructions for products

and applications indicated, unless more stringent requirements apply.

ARCHITECTURAL

JOINT SEALANTS


B. SEALANT INSTALLATION STANDARD:

Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to

materials, applications, and conditions indicated.

C. ACOUSTICAL SEALANT APPLICATION STANDARD:

Comply with recommendations in ASTM C 919 for use of joint sealants in acoustical ap-

plications as applicable to materials, applications, and conditions indicated.

Install sealant backings of type indicated to support sealants during application and at po-

sition required to produce cross-sectional shapes and depths of installed sealants relative to joint

widths that allow optimum sealant movement capability.

1. Do not leave gaps between ends of sealant backings.

2. Do not stretch, twist, puncture, or tear sealant backings.

3. Remove absorbent sealant backings that have become wet before sealant

application and replace them with dry materials.

Install bond-breaker tape behind sealants where sealant backings are not used between

sealants and backs of joints.

Install sealants using proven techniques that comply with the following and at the same

time backings are installed:

1. Place sealants so they directly contact and fully wet joint substrates.

2. Completely fill recesses in each joint configuration.

3. Produce uniform, cross-sectional shapes and depths relative to joint widths

that allow optimum sealant movement capability.

D. INSTALLATION OF PREFORMED TAPES:

Install according to manufacturer's written instructions.

E. INSTALLATION OF PREFORMED SILICONE-SEALANT SYSTEM:

Comply with the following requirements:

1. Apply masking tape to each side of joint, outside of area to be covered by

sealant system.

ARCHITECTURAL

JOINT SEALANTS


2. Apply silicone sealant to each side of joint to produce a bead of size com-

plying with preformed silicone-sealant system manufacturer's written in-

structions and covering a bonding area of not less than 3/8 inch. Hold

edge of sealant bead 1/4 inch inside masking tape.

3. Within 10 minutes of sealant application, press silicone extrusion into

sealant to wet extrusion and substrate. Use a roller to apply consistent

pressure and ensure uniform contact between sealant and both extrusion

and substrate.

4. Complete installation of sealant system in horizontal joints before in-

stalling in vertical joints. Lap vertical joints over horizontal joints. At

ends of joints, cut silicone extrusion with a razor knife.

3.04 CLEANING

Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by

methods and with cleaning materials approved in writing by manufacturers of joint sealants and

of products in which joints occur.

3.05 PROTECTION

Protect joint sealants during and after curing period from contact with contaminating sub-

stances and from damage resulting from construction operations or other causes so sealants are

without deterioration or damage at time of Substantial Completion. If, despite such protection,

damage or deterioration occurs, cut out and remove damaged or deteriorated joint sealants im-

mediately so installations with repaired areas are indistinguishable from original work.

**END OF SECTION**

EXPANSION JOINT SYSTEMS


SECTION 07950


PART 1 – GENERAL




1.02 SUMMARY

This Section includes expansion joint systems for the following:

1. Seismic joint seal and cover as indicated on Drawings.


1. Division 7 Section "Architectural Joint Sealants" for non-fire-resistive

joint sealants.

1.03 SUBMITTALS

A. PRODUCT DATA:


B. PRODUCT CERTIFICATES:

For each type of fire-resistive joint system, signed by product manufacturer.

C. SHOP DRAWINGS:

Provide the following for each joint system specified and obtain approval prior to fabrica-

tion and shipment of materials to the job site:

1. Placement Drawings: Include line diagrams showing plans, elevations,

sections, details, splices, blockout requirement, entire route of each joint

system, and attachments to other work. Where joint systems change

planes, provide isometric or clearly detailed drawing depicting how com-

ponents interconnect.




For Installer.



A firm that has been approved by FMG according to FMG 4991, "Approval of Firestop

Contractors."


Obtain joint systems, for each kind of joint and construction condition indicated, through

one source from a single manufacturer.

C. LOADING CHARACTERISTICS:

Standard loading refers to covers that are capable of withstanding up to 500 lb. point

loads. Heavy duty refers to covers that are capable of withstanding up to 2000 lb. point loads.

D. FIRE-TEST-RESPONSE CHARACTERISTICS:

Where indicated, provide architectural joint system and fire-barrier assemblies identical

to those of assemblies tested for fire resistance per UL 2079 and/or ASTM E 1966 by a testing

and inspecting agency acceptable to authorities having jurisdiction. Fire rating not less than the

rating of adjacent construction.


Deliver joint system products to Project site in original, unopened containers or packages

with qualified testing and inspecting agency's classification marking applicable to Project and

with intact and legible manufacturers' labels identifying product and manufacturer, date of manu-

facture, lot number, shelf life, curing time, and mixing instructions for multicomponent materi-

als.

Store and handle materials for joint systems to prevent their deterioration or damage due

to moisture, temperature changes, contaminants, or other causes.


A. ENVIRONMENTAL LIMITATIONS:

Do not install joint systems when ambient or substrate temperatures are outside limits

permitted by joint system manufacturers or when substrates are wet due to rain, frost, condensa-

tion, or other causes.



Ventilate joint systems per manufacturer's written instructions by natural means or, if this

is inadequate, forced-air circulation.

1.07 COORDINATION

Coordinate construction of joints to ensure that joint systems are installed according to

specified requirements.

Coordinate sizing of joints to accommodate joint systems.

PART 2 – PRODUCTS

2.01 MANUFACTURERS

A. PRODUCTS:

Subject to compliance with requirements, provide the following:

1. Model HB 400 by C/S Group. (Basis of Design) or approved equal, where

indicated.

2.02 JOINT SYSTEMS

A. COMPATIBILITY:

Joint systems that are compatible with joint substrates, under conditions of service and

application, as demonstrated by joint system manufacturer based on testing and field experience.

B. ACCESSORIES:

Provide components of joint systems, including primers and forming materials, that are

needed to install fill materials and to comply with Part 1 "Performance Requirements" Article.

Use only components specified by joint system manufacturer and approved by the qualified test-

ing and inspecting agency for systems indicated.


3.01 EXAMINATION

Examine surfaces and blockouts where architectural joint systems will be installed for in-

stallation tolerances and other conditions affecting performance of work.




3.02 PREPARATION

Prepare substrates according to architectural joint system manufacturer's written instruc-

tions.

Repair concrete slabs and blockouts using manufacturer's recommended repair grout of

compressive strength adequate for anticipated structural loadings.

Coordinate and furnish anchorages, setting drawings, and instructions for installing joint

systems. Provide fasteners of metal, type, and size to suit type of construction indicated and to

provide for secure attachment of joint systems.

A. CAST-IN FRAMES:

Coordinate and furnish frames to be cast into concrete.

3.03 INSTALLATION

Comply with manufacturer's written instructions for storing, handling, and installing ar-

chitectural joint assemblies and materials unless more stringent requirements are indicated.

Perform cutting, drilling, and fitting required to install joint systems.

1. Install in true alignment and proper relationship to joints and adjoining

finished surfaces measured from established lines and levels.

2. Adjust for differences between actual structural gap and nominal design

gap due to ambient temperature at time of installation. Notify Architect

where discrepancies occur that will affect proper joint installation and per-

formance.

3. Locate in continuous contact with adjacent surfaces.

4. Standard-Duty Systems: Shim to level where required. Support underside

of frames continuously to prevent vertical deflection when in service.

5. Heavy-Duty Systems: Repair or grout blockout as required for continuous

frame support and to bring frame to proper level. Shimming is not al-

lowed.

6. Locate anchors at interval recommended by manufacturer, but not less

than 3 inches from each end and not more than 24 inches o.c.

A. SEALS:

Install elastomeric seals and membranes to comply with manufacturer's written instruc-

tions. Install with minimum number of end joints.



1. Provide in continuous lengths for straight sections.

2. Seal transitions according to manufacturer's written instructions. Vulcan-

ize or heat-weld field-spliced joints as recommended by manufacturer.

3. INSTALLATION: Mechanically lock seals into frames or adhere to

frames with adhesive or pressure-sensitive tape as recommended by manu-

facturer.

B. COMPRESSION SEALS:

Apply adhesive or lubricant adhesive as recommended by manufacturer before installing

compression seals.

Terminate exposed ends of joint assemblies with field- or factory-fabricated termination

devices.

C. BARRIER:

Provide water barrier at exterior joints and where called for on Drawings. Provide drain-

age fittings where indicated.

3.04 PROTECTION

Do not remove protective covering until finish work in adjacent areas is complete. When

protective covering is removed, clean exposed metal surfaces to comply with manufacturer's

written instructions.

Protect the installation from damage by work of other Sections. Where necessary due to

heavy construction traffic, remove and properly store cover plates or seals and install temporary

protection over joints. Reinstall cover plates or seals prior to Substantial Completion of the

Work.

**END OF SECTION**

SECTION 07100 WATERPROOFING AND MOISTUREPROOFING

Documents

Transcript of SECTION 07100 WATERPROOFING AND MOISTUREPROOFING