8250XD UNITIZED CURTAIN WALL SYSTEM€¦ · 8250XD UNITIZED CURTAIN WALL SYSTEM ... to recommend...

8250XD UNITIZED CURTAIN WALL SYSTEM

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Y80C


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Section Page

1. General Notes and Guidelines……………………………………………………………………………………. 2. Parts Identification Charts………………………………………………………………………………………... 3. Starter sill Preparation and Installation

A. End Dam Installation………………………………………………………………………………………… B. Sill Connections and Load Clips…………………………………………………………………………… C. Sill Splices……………………………………………………………………………………………………. D. Corners ...…………………………………………………………………………………………………….

4. Intermediate Anchor Installation…………………………………………………………………………………. 5. Unit Inspection and Preparation for Installation

A. Typical Panels……………………………………………………………………………………………….. B. Jamb Panels………………………………………………………………………………………………….

6. Setting Units at Static Sills A. Jamb Panels…………………………………………………………………………………………………. B. Intermediate Panels………………………………………………………………………………………….

7. Setting Units at Dynamic Sills A. Jamb Panels…………………………………………………………………………………………………. B. Intermediate Panels………………………………………………………………………………………….

8. Critical Seals and Stack Gaskets…………………………………………………………………………………. 9. Setting of Intermediate Units………………………………………………………………………………………. 10. Setting of Head Units………………………………………………………………………………………………... 11. Applying Typical Perimeter Seals………………………………………………………………………………… 12. Deglaze/Reglaze Procedure for Captured Units………………………………………………………………... 13. Deglaze/Reglaze Procedure for SSG Units………………………………………………………………………

3-5 6-13

14 15 16 17

18-19

20-21 22

23

24-25

26 27-28 29-30

31 32 33

34-35 36-37

Minimizing Condensation Note: Please reference EFCO’s “Understanding Condensation” brochure which can be obtained through your EFCO representative. Condensation will form on any surface when unfavorable conditions (regarding interior temperature, relative humidity and exterior temperature) are present. When the formation of excessive condensation is a concern, it is highly recommended that a design professional is utilized to perform an analysis of the shop drawings to recommend the best possible installation methods. Please contact your EFCO representative for information on EFCO’s Thermal Analysis Services. Many current installation practices lead to an increase in the possibility of the formation of condensation. Though not all inclusive, the list of examples below illustrates conditions under which condensation is likely to occur:

1. Bridging the system thermal break with non-thermally broken metal flashing or lintels that are exposed to the exterior 2. System exposure to cold air cavities 3. Interior relative humidity levels not maintained at recommended levels, see EFCO’s “Understanding Condensation” brochure 4. Inadequate separation between system and surrounding condition at perimeter 5. Product combinations during the shop drawing stage that result in bridging thermal breaks of one or all products involved


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Section 1: General Notes and Guidelines

HANDLING / STORING / PROTECTING ALUMINUM *The following guidelines are recommended to ensure early acceptance of your products and workmanship.*

A. HANDLE CAREFULLY - Store with adequate separation between components so the material will not rub together. Store the material off the ground.

Protect materials against weather elements and other construction trades. B. KEEP MATERIAL AWAY FROM WATER, MUD, AND SPRAY - Prevent cement, plaster, and other materials from contacting with and damaging the

finish. Do not allow moisture to be trapped between the finished surface and the wrapping material. C. PROTECT MATERIALS AFTER ERECTION - Wrap or erect screens of plastic sheeting over material. Cement, plaster, terrazzo, and other

alkaline materials are very harmful to the finish and are to be immediately removed with soap and water. Under no circumstances should these materials be allowed to dry or permanent staining may occur.

GENERAL GUIDELINES

*The following practices are recommended for all installations*

A. SHIPMENT VERIFICATION - Verify contents of all material shipments received upon their arrival. Verify quantity and correct finishes. Notify EFCO immediately of any discrepancies or damage that may have occurred.

B. REVIEW CONTRACT DOCUMENTS – Become thoroughly familiar with the project. Check shop drawings, installation instructions, architectural drawings and shipping lists. The shop drawings take precedence and include specific details for the project. Shop drawings govern when conflicting information exists in the assembly and installation instructions. Note any field verified notes on the shop drawings prior to installing. EFCO assembly and installation instructions are general in nature and cover only some of the conditions. C. PERIMETER CONDITIONS - Verify that all job site conditions and accompanying substrates receiving the installation are in accordance with the

contract documents. If deviations occur, notification must be given in writing to the general contractor and differences resolved before proceeding further with the installation in the area in question.

D. ISOLATION OF ALUMINUM - Prevent all aluminum from coming in direct contact with masonry or dissimilar materials by means of an appropriate primer.

Typical slab anchors may be set directly onto concrete surfaces in a block-out pocket at the edge of the slab. The block-out pocket is later filled in with grout thereby covering the slab anchor. In such cases, a heavy coat of zinc chromate or bituminous paint must be pre-applied to the slab anchor.

E. INSTALL ALL FRAMING MATERIAL PLUMB, LEVEL, AND TRUE – Proper alignment and relationships to benchmarks and column centerlines, as

established by the architectural drawings and the general contractor, must be maintained.


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Section 1: General Notes and Guidelines

F. SEALANT - All sealant must meet [ASTM C 920, CLASS 50]. For the purposes of these instructions, sealant is to be defined as the following: SEALANT - A weather resistant, gun-able liquid filler which when cured provides a resilient, flexible (± 50% movement capability min.) air and water seal between similar and dissimilar materials.

All sealant must be compatible with all surfaces on which adhesion is required, including other sealant surfaces. All frame surfaces should be clean, dry, dust, and frost free. If a primer is required, it must be applied to clean surfaces. All perimeter substrates shall be clean and properly treated to receive sealant. All sealants and primers must be applied according to the sealant manufacturers instructions and recommendations. This system is designed and has been tested to utilize silicone sealants at all internal joineries, i.e., gasket intersection, etc. It is the responsibility of the glazing contractor to submit a statement from the sealant manufacturer indicating that glass and glazing materials have been tested for compatibility and adhesion with glazing sealants, and interpreting test results relative to material performance, including recommendations for primers and substrate preparation required to obtain adhesion. The chemical compatibility of all glazing materials and framing sealants with each other and with like materials used in glass fabrication must be established.

G. APPROVED SOLVENT OR CLEANER - Degreasing solvents, such as methyl ethyl ketone (MEK), toluene, xylene, acetone and mineral spirits can been used to remove oils or other surface contaminants, but may leave a residue film on the cleaned surfaces, which must be removed. A solution of fifty percent Isopropyl alcohol and fifty percent water is recommended for the final cleaning and preparation of substrates for sealant application. Refer to the sealant manufacturer’s application instructions, ASTM C 1193—09, project specifications, and local environmental regulations for requirements.


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FM05 HOOK ANCHOR (RIGHT)

FM06 HOOK ANCHOR (LEFT)

FM07 MULLION ANCHOR

FM11 MULLION ANCHOR

Section 2: Parts Identification Charts Parts:

FM17 ANCHOR BOLT RETAINER

FM39 SILL CAN END DAM BEHIND

DOOR JAMB

FM42 OPTIONAL RETRACTABLE

HANGER

FM43 90 DEG O.S. CORNER MULLION ANCHOR

FM44 90 DEG I.S. CORNER MULLION ANCHOR


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Section 2: Parts Identification Charts

FM58

SERRATED WASHER FOR 5/16” FASTENER

FM59


FM60


FM61 11” SLAB ANCHOR

FM62

LH SLAB ANCHOR FOR 90 DEG CORNER

FM63

RH SLAB ANCHOR FOR 90 DEG CORNER

FM66

16” HIGH LOAD SLAB ANCHOR

FM67

LH HIGH LOAD ANCHOR FOR 90 DEG CORNERS

FM68

RH HIGH LOAD ANCHOR FOR 90 DEG

CORNERS

FM69 SUB HEAD END DAM

FM70 CORNER ANTI‐BUCKLE CLIP

FM73 OPTIONAL SPLICE

FM78 CORNER ALIGNMENT CLIP

FM79

SPLICE SLEEVE FOR 17N1 SUB HEAD

FM80

SPLICE SLEEVE FOR 1H94 SUB HEAD

FM90 DYNAMIC LOAD CLIP

FM91

DYNAMIC LOAD CLIP FOR SPLIT MULLIONS

FM92

SPLIT JAMB ATTACHMENT CLIPS

FM93

JAMB MULLION CHICKEN NECK ADATPER

FM94

SPLIT MULLION ATTACHMENT CLIP


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FM95

SPLIT MULLION CHICKEN NECK

APADTER

FM96 STATIC LOAD CLIP

FM98

DYNAMIC LOAD CLIP IS TO IS CORNER PANERL

FM99

DYNAMIC LOAD CLIP OS TO OS CORNER PANEL

FMA0 (RH)

FMB2 (LH)

IS CORNER CHICKEN NECK ADAPTER

FMA1 (RH)

FMB3 (LH)

OS CORNER CHICKEN NECK ADAPTER

FMA2

DYNAMIC LOAD CLIP FOR HALF JAMB

FMA3 SILL PAN END DAM

FMA4 MULLION ANCHOR

H12J

STACK SILL FRAME GASKET

H12K STACK HEAD FRAME GASKET

H12L HORZ FRAME GASKET

H12M

STACK SILL FRAME GASKET AT 90 DEG CORNER

H12N

STACK HEAD FRAME GASKET AT 90 DEG CORNER

H12Q

HORZ FRAME GASKET AT 90 DEG CORNER

HC05

FOAM SEALANT BACKER (CIGAR)

HC14

SSG FRAME SILICONE SPLICE SHEET

HWD1 WATER DEFLECTOR

HH17

HOOK ANCHOR LOOKING CLIP

HN09 SETTING BLOCK


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Mullion Fork.

To be fabricated, if desired, by installer


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Section 3: Starter Sill Preparation and Installation

Notes: 1. Prior to setting of subsill, end dams must be applied

Fabrication Steps: 1. Apply sealant to lower leg of end dam that will mate with bottom

of subsill (see Fig. 1) Sealant should extend from behind the neck forward to

end of sill and across front of sill to edge of end dam (See Fig 1)

End dam should extend past forward edge subsilll by approx. 1” and must extend behind the neck of the sub-sill (See Fig 3)

3. Fasten subsill to end dam with two self drilling and self tapping

screws. Note that fasteners should be located to interior side of neck See Fig. 2

4. Seal joint between end dam and subsill with silicone sealant (see Fig 3) while making sure sealant is applied to interior seam (see Fig 2).

Figure 3

Figure 1

Figure 2

1”

Sealant (Step1)

End Dam Installation

2” 1/2”

Sealant (Step 4)


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Notes: 1. After application of end dams, fasten sill to surrounding condition

as noted on approved shop drawings, apply sill sealant and in-stall FM90 or FM96 load clips. See approved drawings for loca-tions and spacing of clips and fasteners.

2. When using dynamic sill clip FM90, sill must be shimmed up off of condition by 1/2” MIN to allow movement of panel.

Fabrication Steps: 1. Level sill and fasten to condition with fasteners as called out on

contract documents. Seal over any fastener head that must be placed to exterior

side of sill neck. Stainless steel fasteners recommended for any connections

made to exterior side of the neck as this is a “wet” area. EXTREME CARE MUST BE TAKEN TO ENSURE SILL IS PLUMB AND LEVEL. This will prevent binding of panels on neck during installation.

2. After fastening, seal the subsill to condition (see Fig 4). 3. Once sill is secure, locate and install load clips. Typically one clip

per vertical stack (centered on vertical) is used at the sill unless noted otherwise on shop drawings. Apply a small amount of seal-ant to lower interior side of neck, roll clip in and snap down into sealant in place (see Fig 4). FM90 shown in Fig 4, FM96 (below)

sim.

Perimeter sealant 1/2” min w/ FM90

Figure 4

Sealant

Sill Anchorage and Load Clips


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Notes: 1. When possible, splice subsill away from verticals. See shop

drawings for locations.

Fabrication Steps: 1. Ensure sill sections are square and true to each other and

fasten to condition. Allow 3/8” to 1/2” gap between sections of sill

2. Apply sealant and backer rod between mating members along forward/exterior side and up along neck (see Fig 5).

Ensure sealant between sill sections marries to sealant along underside of sill

3. Apply sealant to perimeter edge of modified HC14 silicone boot. Center and place over top of previously applied sealant. (see Fig. 6). Boot will need to be cut down to fit.

4. Install WEA2 across joint (see Fig. 7). 5. From interior, back seal vertically against boot between necks

of mating sections (see Fig 9).

Figure 5

Figure 9

Figure 6

Figure 7

Sealant

Sealant Sealant

Sealant

Sill Splices


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Notes: 1. At corners, sill preparation steps are quite similar to those used for

straight splices. Modifications are required to the silicone boots to work on angles. Figures to the right show 90deg outside corner, how-ever steps below are common to any outside or inside corner at any given angle.

Fabrication Steps:

1. Ensure sill sections are square and true to each other and fasten to condition. Allow 1/2” gap between sections of sill

2. Apply backer rod and sealant between mating members along for-ward/exterior side and up along neck (see Fig 10)

Ensure sealant between units marries to perimeter sealant along underside of sill

3. Modify boot for use at corner (see Fig 11). Modification required will vary with angle of corner.

4. Apply sealant to perimeter edge of modified chevron shaped HC14 silicone boot and along forward/lower edge of sill. Center and place over top of previously applied sealant. (see Fig. 12).

5. Apply sealant to perimeter edge of strip section of modified HC14 boot and vertical edge of neck. Wrap around corner along vertical face of neck (see Fig 13).

6. Top seal joints between the two silicone sheets (see Fig 14). 7. Install WEA2 across joint. (sim. to Fig 7, pg 16) 8. From interior, back seal vertically against boot between necks of mat-

ing sections (see Fig 15).

Figure 10

Figure 12

Figure 11

Figure 13

Figure 14 Figure 15

Sealant

Sealant

Corners


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Notes: 1. As noted previously, WEA2 should be installed in as long of

runs as practical. When splices to WEA2 are required, splice gasket away from verticals and away from subsill (extrusion) splices.

2. Gasket splice at sill 32B6 is shown, splices along stacks (32A9 /32C9) are similar.

Fabrication Steps: 1. Apply sealant behind last 2” of WEA2 and along gasket race

2” beyond gasket. 3. Install next run of gasket into race, starting as close as possi-

ble to previously installed gasket, pressing firmly into sealant in raceway

4. Generously apply sealant over the top of the seam between gaskets.

5. Take care and ensure gasket seam is not pulled apart during installation of remainder of necessary WEA2.

Gasket Splices

Sealant, 2” behind and 2” beyond end of

gasket 32B6 Subsill WEA2

WEA2 32B6 Subsill

Sealant over splice


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Section 4: Intermediate Anchor Installation.

Notes: 1. Use of embeds is typical and shown. 2. FM61 shown. Steps sim when using FM62/FM63 at corners.

Fabrication Steps: 1. When using embeds, set the anchors into the opening by in-

serting anchor bolts in the approximate locations required. Ensure separation of dissimilar materials when placing an-chors. Bituminous coating recommended for placing anchors on concrete. Anchors typically centered at centerline of mulli-on for intermediates. Jamb anchor locations vary. See ap-proved shop drawings for exact locations.

2. Apply flat, lock, and serrated washers onto the anchor bolts. Turn serrated washer so that teeth do not interlock to allow adjustment (see Fig 16).

3. Adjust position to align with adjacent clips and ensure no inter-ference(s). Once adjusted and in line, turn serrated washer to lock with anchor then tighten the nut to required torque (see Fig 17). Once adjusted and locked, anchor will be as shown (see Fig 18).

Figure 18

Figure 16

Figure 17


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Section 4: Intermediate Anchor Installation.

Notes: 1. ALIGNMENT OF CLIPS BOTH ALONG EA FLOOR AND

WITH EACH OTHER FLOOR TO FLOOR IS CRITICAL. Dis-tance from slab may vary slightly due to construction toleranc-es (se Fig. 19).

2. Typical dimension from forward edge of slab anchor to back of subsill is 1-1/8”(see Fig. 19).

Figure 19

Slab variance

1‐3/16” 1‐1/8”

Plumb‐bob


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Section 5: Unit Inspection and Preparation for Installation

Typical Panels

Notes: 1. Before installing units, each panel must be inspected to en-

sure they are ready for installation. Steps below should be used as a checklist to ensure each panel is ready to be in-stalled.

Steps: 1. Inspect each unit to ensure that all external gaskets and

screws are in place 2. Using an approved solvent or cleaner, clean the vertical and

horizontal stack gaskets to remove oil and/or other contami-nants (see Fig. 20)

3. Ensure heads of forward assembly screws were shop sealed. (see Fig 210 and 21).

4. Check that gap between neck and neck adapter has been sealed and that LC23 neck spacer has been installed (see Fig 22).

Figure 20

Figure 21

Figure 22 Ensure gaskets in place

Clean


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Section 5: Unit Inspection and Preparation for Installation

Typical Panels

Notes: 1. Before installing units, each panel must be inspected to en-

sure they are ready for installation. Steps below should be used as a checklist to ensure each panel is ready to be in-stalled.

Steps: 5. Using approved solvent or cleaner, clean the sealant contact

surfaces of the expansion cavity of the stack sill and mullions of all oil and contaminants (see Fig 23).

6. Apply a generous amount of sealant to each end of the stack cavity that extends toward center of panel 4”-6” from each side.

7. Place HC05 sealant backer (cigar) into ONE end of the stack cavity with 4” extending out of the cavity at split mullion (see Fig 25).

NOTE: At jambs, HC05 will be applied on each side of the panel. 1/2” of cigar should extend beyond panel at jamb side and typical 4” at split mullion side of panel.

8. Apply generous amount of sealant to bottom side of HC05 that will contact the neck of panel immediately below. This step should only be done immediately prior to setting of the unit.

9. Apply a continuous (Full Height) bead of sealant along the WC21 gasket and the adjacent stack leg (see Fig 24).

Figure 25

Figure 24

Sealant (Step 6)

Sealant (step 8)

Figure 23

Sealant (Step 9)


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Section 6: Setting Units at Static Sills

Jamb Panels

Notes: 1. Units are typically installed left to right (as viewed from exteri-

or). Install each frame unit in sequence, starting with left jamb unit.

2. Units will typically be lifted by fabricated holes in neck of stack head. Certain circumstances may require splice bars, but in-stallation steps are similar

Steps: 1. Ensure end dam has been properly installed and sealed (see

Fig 1, 2, 3 for end dam sealant). Apply sealant to top of sill neck and load clip (FM96)) where HC05 from unit will contact it (see Fig 29).

2. Lower unit down into position of starter sill. Hook anchors should also be hooked onto slab anchors. The unit should now be sitting hard on FM96 clip (see Fig 30 and 32).

3. Provided the subsill was properly installed and the unit is square and sitting hard on the static load clip, the unit will be at proper elevation and be level and plumb from side to side

4. Compare jamb unit to established benchmarks and move the unit side to side to position laterally to the required location (see Fig 31).

Figure 30

Figure 29

Figure 32 Figure 31

Sealant (Step 1)

Prev. applied sealant, pg 14


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Jamb Panels

Notes: 1. Units are typically installed left to right (as viewed from exteri-

or). Install each frame unit in sequence, starting with left jamb unit.

2. Units will typically be lifted by fabricated holes in neck of stack head. Certain circumstances may require splice bars, but in-stallation steps are similar

Steps: 5. Once sill unit is seated, seal side of jamb to the end dam. Note

that the seal should come up to the top of the end dam and ex-tend forward to the face of the mullion. Tool sealant into the ar-ea to ensure a watertight joint.

6. When returning to make perimeter seal, note that the seal must start/return to the shoulder of the mullion and the seal must mar-ry to the sealant between the end dam and mullion

Perimeter and end dam Seals marry

Cutaway view of the end dam to mullion seal


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Section 6: Setting Units at Static Sills Intermediate Panels

Notes: 1. Units are typically installed left to right. Install each frame unit

in sequence, starting with left jamb unit. 2. Units will typically be lifted by fabricated holes in neck of stack

head. Certain circumstances may require splice bars, but in-stallation steps are similar

Steps: 7. Prior to setting the next unit, apply a generous amount of seal-

ant to the foam sealant backer/cigar (see Fig 33) 8. Apply three up and over seals where units will mate with cigar.

See Fig 33 and 36 One will be against unit already installed, One against and around snap leg, One where side wall of next panel will intersect with

the cigar. 9. Set the next unit after the jamb by nesting the vertical stack-

ing mullion together without snapping them (see Fig 34). 10.Lower the unit until it is approx. 1/2” above the neck of the

starter sill. The unit hook anchors should have enough verti-cal adjustment to hook onto slab anchors (see Fig 35).

Figure 34

Figure 36

Sealant along top of cigar and three

“up and over” seals

Figure 33

Figure 35

View of three “up and over” seals from above


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Intermediate Panels




Steps: 11.Once the unit is 1/2” above the neck of the sill, snap the mulli-

ons together using a “fork” or C Clamps. Wrap ends of fork to protect the metal surfaces of the frame from scratching and denting. If using C clamps, use wood blocking or otherwise pro-tect frames.

If using a “fork”, lift /press down the free end of the fork as necessary to apply pressure to opposite sides of the vertical and force the split mullions together. When properly seated, the clips will create an audible snap (see Fig 36).

12. Once the halves are fit together, lower the panel down to the static load clip. NOTE: Ensure cigar is properly seated into the tunnel as the panel is lowered.

13. Check dimensional overall frame dimensions at every 5th pan-el to avoid dimensional build up and ensure units are properly positioned with respect to established benchmarks.

14. Repeat until all static sill units are installed.

Figure 36

Fork, see page 14


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Section 7: Setting Units at Dynamic Sills

Jamb Panels




3. Steps for dynamic load clips generally mirror those required at static sills with a few minor changes in approach

Steps: 1. Place temporary shims on top of the load clip from interior

side. These will help maintain alignment until slab anchors are adjusted (see Fig 37).

2. Lower the jamb unit down into position and the unit onto the starter sill. Hook anchors should also be hooked onto slab anchors. Unit should now be sitting on the shims.

3. Tighten the jack bolts of mullion anchors to just tight enough to remove shims at sill applied during step 2.

4. Set unit to required height and level by turning jack bolt at each mullion (CW to raises, CCW to lower, see Fig 38).

Figure 37

Figure 38 (view from

interior)

Sealant

Lower Raise

9/16” Shim pack


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Intermediate Panels





Steps:

6. Prior to setting the next unit, apply a generous amount of seal-ant to the foam sealant backer/cigar.

7. Apply three up and over seals where unit edges will mate with cigar (see Fig 39 and 41).

One will be against unit already installed One against and around snap leg One where side wall of next panel will intersect with the

cigar. 8. Set the next unit after the jamb by nesting the vertical stacking

mullion together without snapping them (see Fig 40). 9. Lower the unit until it is approximately 1/2” above the neck of

the starter sill. The unit hook anchors should have enough vertical adjustment to hook onto slab anchors.

10.Place temporary shim pack on top of load clip (see Fig 39).

Figure 41

Figure 39

Sealant along top of cigar and three

“up and over” seals

Figure 40

Temporary shims


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Intermediate Panels



head. Certain circumstances may require splice bars, but in-stallation steps are similar.


Steps:

11.Once the unit is 1/2” above the neck of the sill and shims in place, snap the mullions together using a “fork” or C Clamps. Wrap ends of fork to protect the metal surfaces of the frame from scratching and denting. If using C clamps, use wood blocking or otherwise protect frames.

If using a “fork”, lift /press down the free end of the fork as necessary to apply pressure to opposite sides of the vertical and force the split mullions together. When properly seated, the clips will create an audible snap (see Fig 42)

12. Once the halves are fit together, lower the panel down to the shims. NOTE: Ensure cigar is properly seated into the tunnel as the panel is lowered.

13. Tighten jack bolt and remove shims. Measure and level unit by turning jack bolts on anchors (see Fig 43).

14. Check dimensional overall frame dimensions at every 5th pan-el to avoid dimensional build up and ensure units are properly positioned with respect to established benchmarks.

15. Repeat until all dynamic sill units are installed.

Figure 42

Fork Figure 43 (view from

interior)


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Notes: 1. WEA2 gasket is supplied on a roll for field installation to avoid

unnecessary splices. When necessary, splice per page 19 2. Care must be taken to ensure weather tight seals are achieved

at intersections between panels. These steps are imperative to ensure system performance

Steps: 1. Insert WEA2 gasket into raceway along forward and top side

of neck in as long of runs as possible (see Fig 44). 2. Once unit is in place and straps removed, push the cut out

section of the LC93 PVC angle back up against the neck (see Fig 45)

3. Using approved solvent or cleaner, clean the LC93 3” to 4” inward on each unit

4. From interior side, fill the lift holes with sealant (see Fig 46). NOTE: When optional splice FM73 is used, the holes in Fig 45 and 46 should not exist. Proceed to page 32

Figure 45 Exterior View

Figure 44

WEA2

Figure 46 Interior View

Push tabs up and snap into neck Sealant

Section 8: Critical Seals and Stack Gasket


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Section 8: Critical Seals and Stack Gasket

Notes: 1. WEA2 gasket is supplied on a roll for field installation to avoid

unnecessary splices. When necessary splice per page 19. 2. Care must be taken to ensure weather tight seals are achieved

at intersections between panels. These steps are imperative to ensure system performance

Steps: 5. Apply a bed a sealant on each side of the joint on top of the

LC93 wide enough to cover the entire area of the HC14 boot. Sealant must extend from forward edge of LC93, up along neck to bottom side of raceway for WEA2 at top of neck.

At this step, use backer rod (forward of the snap legs) and sealant to run the sealant bed across the top of the snap legs below and marry sealant to each side (see Fig. 47).

6. Lay the boot into the bed of sealant and press down to smooth and remove air bubbles

7. Apply sealant to perimeter of the boot and tool to create a wa-tertight seal at the splice (see Fig 48).

8. From interior side, seal the cavity between the necks of each unit. Tool the sealant into all voids to ensure a watertight seal (see Fig 49). This seal will be sim and still required when FM73 hangers are used

Figure 47

Figure 48 Exterior

view

Figure 49 Interior View

Prev. applied Sealant (pg 30)

HC14 (Boot).

LC93

WEA2

Sealant (Step 8)


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Section 9: Setting of Intermediate Units

Field Panels Notes:

1. The setting of typical intermediate units requires the same steps as setting a sill unit with a dynamic load clip.

Steps: 1. Install units from left to right, starting at left jamb unit 2. Follow all steps in section 5 and section 7.

Corner units are designed to install in the same man- ner as typical units and must be installed from left to right as viewed from exterior of building. (NO EXCEP TIONS).

3. The head of units will have the load clips factory installed

along with a neck adapter to carry the line of the neck across the top of the unit. Once the first row is installed and sealed as noted in previous sections, stacking units on top is quite simi-lar as stacking onto a dynamic starter sill. Net effect is that while there is typically only one load clip per vertical at starter sill, there will be two at every vertical (one on each panel) at 4 way stack joints.


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Section 9: Setting of Intermediate Units

Jamb Panels

Notes: 1. Before installing units, each panel must be inspected to ensure

they are ready for installation. Steps below should be used as a checklist to ensure each panel is ready to be installed.

Steps: 1. At Jamb panels, after following previous inspection/cleaning

steps, apply a splice sheet to lower jamb condition side of jamb mullion. Use double sided tape to initially apply the sheet to the mullion of the upper unit and allow enough to hang down to cap-ture lower unit as well. (See special splice package KV39 ) Note that this is not required for sill panels (see Fig 26).

2. Apply HC05 per previous instructions. Note that the HC05 should protrude slightly out from side of unit, but not enough to interfere with splice sheet. Apply sealant to lower side of HC05 (see Fig 27).

3. Apply sealant to the side of the splice hanging. This will be used to seal sheet to unit below (see Fig 27).

4. Once unit is set, press the hanging end 0f the splice to the unit below and knead to remove any air bubbles (see Fig 28). Visually inspect through joint to extent pos-sible to ensure good seal

5. After pressing sheet to lower unit, apply a generous amount of sealant to perimeter of splice sheet and tool to create watertight seal (see Fig 28).

~2”

Figure 27

Sealant

Double sided tape to apply

sheet to mullion

Figure 26

Press sheet on to lower unit once upper unit is

completely set and adjusted

Figure 28

~1/2”

See Figure 27


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Section 10: Setting of Head Units

Notes: 1. The setting of units requires the same steps as setting a sill

unit with a dynamic load clip. Steps:

1. Install units from left to right, starting at left jamb unit 2. Follow all steps in section 5 and section 7.

Corner units are designed to install in the same man- ner as typical units and must be installed from left to right as viewed from exterior of building. (NO EXCEP TIONS).

3. In addition to previous steps, depending on surround condition

and type of panel used, there may be an extra step required. If supplied, retractable hangars must be used to lift/place units and then driven down and out of the way once in place (see Fig. 51).

4. If panels supplied with optional head and retractable hangars, a boot must still be used to cap the top side of the head units (see Fig 52).

If panels are installed with no building condition directly above the panels (a parapet or sim.) and then coped/flashed to the building, head unit installation is exactly the same as a typical unit (see Fig 50).

Figure 51

Figure 50

Sealant along edges of boot and

across snap legs of mating mullions

Figure 52 Top View


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Section 11: Applying Typical Perimeter Seals

Notes: 1. Typical head, jamb, and starter sill are shown in this seciton.

Joint sizes will be job specific. All seals should join/marry to each other.

2. Conditions at the head will be job specific and may require flashing/coping at parapets. See Fig 53 for generic head

3. The line of sealant at the jamb will follow the front edge of the back member (see Fig 54). Special care is needed to ensure the end dam and splice sheets at jambs are properly sealed and married to perimeter sealant (see Fig 55).

4. Seal under starter sill must continue to jamb and marry to verti-cal jamb seal (see Fig 56).

Figure 55

Backer rod and perimeter sealant

Optional cosmetic seal

Figure 53

Figure 54

Backer rod and perimeter sealant

Surrounding condition not shown for clarity

Figure 56


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Section 12: Deglaze / Reglaze Procedure for Captured System

Notes: 1. Portions of work must be done from exterior of building on

swing stage or man lift. Follow sealant manufacturer’s sealant application instructions for deglazing and reglazing. When de-glazing, follow these steps

Steps: 1. Remove exterior wedge gaskets from lite to be deglazed. Note

that head of unit is never captured. 2. Remove covers as applicable by inserting putty knife up to

compress leg of LC89 clip, push up on cover, and rotate off. 3. Cut and remove weather seals at head of unit and RH side of

vertical (see Fig. 57) 4. Using tools such as automotive deglazing tools, cut through

the glazing sealant removing glazing, gaskets and sealant from opening. Some areas may be accessible from interior.

5. Cut away sealant from the substrate leaving a thin (~1/32”) film of sealant on the frame. Do not damage the surface finish of the substrate. If remaining sealant exhibits adhesive failure, remove completely. Special care must be taken in this circum-stance to avoid damage to substrate

6. Remove all remaining pieces of gasket or sealant residue from gasket reglets.

Remove

Compress cover retainer clip (LC89),

push cover up, rotate off

Cut and remove weather seal after

removal of cover (as applicable)

Cut completely through joint, remove sealant and gaskets

Cut completely

through joint,

remove sealant and

gaskets

Figure 57

Figure 58

LC95


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Section 12: Deglaze / Reglaze Procedure for Captured System

Notes: 1. When Reglazing follow these steps.

Steps: 1. Using approved solvent or cleaner, clean the glazing surface of

all oils and other containments. Sealant manufacturer’s prepa-ration and application instructions should be followed exactly

2. Replace spacer gasket with new gasket around entire opening. Ensure gaskets are firmly butted together at corners.

3. Apply a bead of sealant around the outside of the spacer gas-ket as shown. Tool the sealant into a beveled shape prior to setting the glazing. Ensure no voids or air bubbles are present in sealant. Glazing must be set within 10 minutes, or before sealant begins to skim over.

4. Carefully insert new setting blocks at location shown on ap-proved shop drawings.

5. Clean the new glazing and set into place on setting blocks. Do not contaminate sealant contact surfaces of the glazing during handling. Press glazing firmly against the spacer gaskets. Avoid sliding the glazing as this may force sealant into areas visible from the interior

6. Apply temporary retainers with wedge gasket at quarter points on horizontal and LH jamb members.

7. Tool sealant around the perimeter of the glazing, packing the sealant into the joint to ensure voids and air bubbles are elimi-nated. Relocate retainers to enable access behind them at prev. location and tool sealant at those areas. Pay particular attention at the corners of the glazing.

8. Remove and replace temporary retainers with covers and gas-kets. If exterior gaskets were damaged when removed, replace them with new gaskets

Figure 59 Apply sealant and

tool to a bevel

Temporary retainers at 1/4 points. Note wedge gasket each

side

Press glass firmly to seat against spacer

gasket

LC95


11/21/2019

Section 12: Deglaze / Reglaze Procdure for SSG System

Notes: 1. Portions of work must be done from exterior of building on

swing stage or man lift. Follow sealant manufacturer’s sealant application instructions for deglazing and reglazing. When de-glazing, follow these steps

Steps: 1. Cut and remove weather seals 2. Using tools such as automotive deglazing tools, cut through

the glazing sealant removing glazing, gaskets and sealant from opening. Some areas may be accessible from interior.

3. Cut away sealant from the substrate leaving a thin (~1/32”) film of sealant on the frame. Do not damage the surface finish of the substrate. If remaining sealant exhibits adhesive failure, remove completely. Special care must be taken in this circum-stance to avoid damage to substrate

4. Remove all remaining pieces of gasket or sealant residue from gasket raceway.

5. Remove LC95 from vertical. This can be discarded as it will not be re-installed.

Figure 60

Figure 61

Cut completely

through joint,

remove sealant and

gaskets

Remove

Remove


11/21/2019

Section 12: Deglaze / Reglaze Procdure for SSG System

Notes: 1. When RE- glazing, follow these steps

Steps: 1. Using approved solvent or cleaner, clean the glazing surface of

all oils and other containments. Sealant manufacturer’s prepa-ration and application instructions should be followed exactly

2. Replace spacer gasket with new gasket around entire opening. Ensure gaskets are firmly butted together at corners.

3. Drill attachment holes for #12 screws through vertical mullions at 1/4 points of DLO for temporary retainers.

4. Apply a bead of sealant around the outside of the spacer gas-ket as shown. Tool the sealant into a beveled shape prior to setting the glazing. Ensure no voids or air bubbles are present in sealant. Glazing must be set within 10 mins, or before seal-ant begins to skim over.

5. Carefully insert new setting blocks at location shown on ap-proved shop drawings.

6. Clean the new glazing and set into place on setting blocks. Do not contaminate sealant contact surfaces of the glazing during handling. Press glazing firmly against the spacer gaskets. Avoid sliding the glazing as this may force sealant into areas visible from the interior

7. Apply temporary retainers with wedge gasket at quarter points on verticals. For SSG these will comprise of a 3” piece of screw applied pressure plate and WEP7 gasket. If no pressure plate on hand, it will have to be ordered (see Fig 64). Do not apply weather seals!

8. Allow silicone to cure, then remove retainers and apply weath-er seals from edge of glass to frames. On verticals, apply seal-ant and backer rod in place of LC95 (see Fig. 65).

Figure 62 Figure 64

Figure 63

Figure 65

Apply sealant and tool to a bevel

Press glass firmly to seat against spacer

gasket

Temporary retainers at 1/4 points

Backer rod and sealant in place of

LC93

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