JM Roofing Systems Application Guide Book 4

Table of ContentsSection One Roof Insulation Application Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Roof Insulation Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Roof Insulation Fastening Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Section Two Section 2A JM EPDM Roofing Application Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Section 2B JM EPDM General Product Specification . . . . . . . . . . . . . . . . . . . . . . 2-15 JM EPDM Mechanically Fastened Specifications . . . . . . . . . . . . . . . 2-16 JM EPDM Ballasted Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 JM EPDM FIT Ballasted Specifications . . . . . . . . . . . . . . . . . . . . . . . . 2-22 JM EPDM Fully Adhered Specifications . . . . . . . . . . . . . . . . . . . . . . . . 2-26 JM EPDM FIT Fully Adhered Specifications . . . . . . . . . . . . . . . . . . . . 2-29

Section Three JM EPDM Flashing Details Table of Contents . . . . . . . . . . . . . . . . . . . . 3-1 JM EPDM Accessories Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 JM EPDM Flashing Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Vapor Barrier Flashing Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88

JM EPDM (Thermoset) Commercial Roofing Application Guide

BallastedMechanicallyFastened

Fully AdheredBallastedMechanicallyFastened

Fully Adhered

Book 4: EPDM

Book 4: EPDM

Book 4: EPDM

RS-8350-EPDM 3-14 (Replaces 11-13)

717 17th StreetDenver, CO 80202(800) 922-5922www.jm.com/roofing

COMMERCIAL ROOFING APPLICATION GUIDE

RS-8350-EPDM

1Roof Insulation Application

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Roof InsulationApplication Guide, Specifications, and Fastening Patterns

Section One:Roof Insulation Application

1-1RS-7386 11-13 (Replaces 2-13)

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1.0 Product Information

Effective roof insulation helps lower overall energy consumption, reduces HVAC equipment requirements, and brings about improved comfort for the occupants of a building.

JM provides these benefits with a full line of high performance insulations and cover for single ply, built-up, metal and modified bitumen roofs. The section that follows reviews the storage, installation and use instructions for the cover board and insulation board product lines. JM product line. Prior to product selection, it is recommended that the product performance, design and installation concepts of the roofing system be considered to ensure the correct product selection.

The Fesco product line incorporates recycled cellulose and has been third-party certified for recycled content by UL Environment. With an average recycled content of 27% to 40%, this product line can provide LEED points (certified products) in certain jobs. The JM polyisocyanurate product line has product comprised of a closed-cell polyisocyanurate foam core bonded in the manufacturing process to various facers (glass-reinforced, paper, coated glass and aluminum foil). Finally, the Invinsa product line includes high-density polyisocyanurate cover boards that are lightweight with high compressive strength. These boards provide improved hail resistance and foot traffic resistance.

2.0 Guarantees

It is also important to protect a roofing system with a guarantee of performance. JM offers a wide variety of Peak Advantage Guarantees, including many 20-year No-Dollar-Limit (NDL) specifications which are available from NDL Approved Contractors only. Check with a JM Technical Services Specialist for the names of approved NDL Contractors in your area and details on NDL guarantees including extended term guarantees.

3.0 Product Considerations

3.1 Insulation Characteristics Roof insulation performs two basic functions in any roof system. It is the primary thermal barrier for the top surface of the building envelope, and it serves as a base for the roofing system. In order to perform these two functions successfully, any roof insulation should have the following characteristics: Sufficient thermal resistance (R Value) to meet the designers needs. Resistance to indentation, compression and crushing during installation of the roof

membrane and during periodic maintenance, once the roof is completed. Cover boards are always recommended by JM.

Rigidity to support the roof membrane and to span the rib openings of metal roof decks. Resistance to moisture absorption. Dimensional stability. Compatibility with common roofing systems and attachment techniques. Resistance to wind uplift, and pull-through of mechanical fasteners. Acceptability by Underwriters Laboratories Inc., FM Global and code agencies.

4.0 Design Considerations

4.1 Drainage Proper drainage must be provided on all roof systems. Standing or ponded water hastens the deterioration of any roof system since the water can work its way through laps or any minor application flaw in the membrane.

4.2 Double Insulation Layers Installing roof insulation in multiple layers provides the designer with improved thermal performance. It also contributes to the overall perfor-mance of the roof system for the following reasons: Recent studies indicate that as much as 8% of the thermal efficiency of the insulation

can be lost through the insulation joints and exposed insulation fasteners of single layer installations. Insulation joints that are staggered in multiple layer installations block the flow of heat.

Roof InsulationApplication Guide

Roof InsulationApplication Guide, Specifications, and Fastening Patterns

Section One:Roof Insulation Application

1-2 1-3RS-7386 11-13 (Replaces 2-13) RS-7386 11-13 (Replaces 2-13)

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6.0 Foam Thermal Values6.1 Thermal Values The thermal values of all closed cell urethane or isocyanurate foam insulations are at their optimum at the time of manufacture. As these products age, some thermal loss occurs due to air infiltrating the foam cells and diluting the insulating gas in the cells. This process continues to occur over time. The degree to which this occurs is a function of the product formula and quality. It may vary from one manufacturer to another. The ultimate R-value of foam products will also depend on individual installation circumstances.

6.2 Long Term Thermal Resistance (LTTR) Johns Manville manufactures polyisocyanurate foam insulation products and reports R-Value in accordance with ASTM C 1289-12 and CAN/ULC S704. LTTR is a test procedure for a foam insulation with blowing agents other than air, giving a Thermal Resistance value in a 15 year time-weighted average. This method provides a more accurate method to report long term thermal performance for foam plastic insulation materials.

7.0 Definition of Terms and Symbols7.1 k-Value (Thermal Conductivity): the measurement of heat flow in BTUs through a 1 (25 mm) thickness of any single homogeneous material, per hour per sq. ft. per degree F temperature difference (W/m C).

7.2 C-Value (Thermal Conductance): the measurement of heat flow in BTUs per hour per sq. ft. per degree F temperature difference through any single material, regardless of thickness (W/m2 C).

7.3 R-Value (Thermal Resistance): the measurement of the resistance to heat flow. The reciprocal of the C-value.

7.4 U-Value (Overall Heat Transfer Coefficient): the measurement, in BTUs of heat flow, per hour per sq. ft. per degree F temperature difference through a combination of materials such as roof deck, vapor barrier, roof insulation, built-up roofing, and the air films below and above such combinations.



Multiple layer insulation installation reduces the stress accumulation of a thick, single insulation joint and distributes the stress more evenly over the multiple, thinner insulation joints.

The bottom side of the membrane is protected from physical damage from insulation plates and fasteners by the second layer of insulation.

Roof decks are stiffened.

5.0 Insulation Installation Considerations

5.1 Protection from Weather JM Roof Insulations (polyiso, Invinsa, and Fesco) are shipped with plastic shrouds that are intended to temporarily protect the insulation while in transit. Polyiso packaging from some JM plants is considered tarpless; meaning it can be shipped without covering the load with a tarpaulin. JM plants without tarpless packaging ship polyiso with loads covered by a tarpaulin. Please contact your technical representative to learn which JM factories use tarpless packaging.

All JM insulation products (no matter how shipped), that are stored outdoors, must be stored in accordance with Johns Manville, NRCA (National Roofing Contractors Association) and PIMA (Polyisocyanurate Insulation Manufacturing Association) best roofing practices using a weatherproof covering such as a tarpaulin. In humid climates, JM recommends slitting the plastic shrink wrap (or removing the packaging all together), prior to covering the pallet with a breathable tarpaulin, to allow for venting. Furthermore, JM insulation should not be stored in or around standing water. JM recommends 3 to 4 of dunnage below individual pallets of insulation to keep it off the ground.

Insulation should not be left exposed to weather. No more insulation should be installed than can be completely covered with membrane on the same day. Factory packaging should not be relied upon as protection from the weather.

5.2 Asphalt Temperatures JM endorses the guidelines established by the NRCA and ARMA for heating asphalt for proper insulation applications. Asphalt should be applied at the Equiviscous Temperature (EVT), 25F (14C).

5.3 Cold Weather Application Hot asphalt chills rapidly at 40F (4C). To avoid problems associated with cold asphalt application, insulation should be applied with mechanical fasteners or the mop and flop method of installing insulation. The mop and flop method entails mopping the back of the insulation so that the asphalt retains its adhesive qualities for a longer period. When applying insulation with hot asphalt, board size should not exceed 4 x 4 (1.22 m x 1.22 m). Care should be taken in any application below 40F (4C).

5.4 Mechanical Application to Steel Decks Mechanical attachment of insulation to steel decks is the only acceptable attachment method. For current information regarding Factory Mutual requirements over insulated steel decks, please check with a JM Technical Services Specialist, or the current FM ApprovalsSM RoofNav.

5.5 Cold Adhesive Application JM insulations may be installed in Insulation Adhesives: MBR Bonding Adhesive One-Step Foamable Adhesive Roofing Systems Urethane Adhesive

5.6 Foam Insulation Products are Combustible They should be properly protected from exposure to fire during storage, transit and application.

5.7 Limitations When installed over metal decks, spans shall be limited for specific deck gauges as outlined in the current FM Global Loss Prevention Data Sheets 1-28, 1-29 and FM ApprovalsSM RoofNav. JM insulations are not recommended for applications where temperatures are outside the service temperatures of -100F to 250F (-73C to 121C). Although JM roof insulations are designed to be compatible with most membranes, the membrane manufacturer should be consulted for specific approval with individual membrane products.

1-4 1-5RS-7387 11-13 (Replaces 11-12)RS-7387 11-13 (Replaces 11-12)

Type of Deck Attachment Recommendation

Wood Board 1, 2, 7*

Plywood 1, 2, 7*

Gypsum 3, 5*

Gypsum 3*

Concrete 4, 6

Concrete 6

Concrete 5*

Cementitious Wood Fiber 3

Steel 1, 2

* See mechanical fastener recommendation Section 1.5, Roof Decks in the current Commercial Roofing Product Manual.

UltraFast metal plates should not be used on SPM systems.

UltraFastFastener and Metal Plate

Roof Insulation

Steel Roof Deck

1

UltraFastFastener and Plastic Plate

Roof Insulation

Steel Roof Deck

2

Polymer Auger Fastener with Plate

Roof Insulation

Cementitious Wood Fiber or Gypsum Roof Deck

3

Note: See pages 3-9 through 3-17 for Roof Insulation Board Fastening Placement Patterns.

Roof Insulation SpecificationsRecommendations for AttachingInsulation to a Structural Deck

Insulation SpecificationsThe JM Insulation Specification numbering system is designed to allow the designer to easily and clearly describe a particular insulation construction. Arabic numerals denote the number of layers of insulation attached in a particular manner. Capital letters indicate the method of attachment of the insulation and the presence of a vapor retarder.

Capital letters indicate the following:M = Mechanically Fastened V = Vapor RetarderA = Adhered (Hot Asphalt) C = Cold AdhesiveL = Loose Laid (Cold Applied & Urethane Adhesive)

MechanicallyFastened

UrethaneAdhesive

Hot Asphalt Cold Applied

ExamplesA construction of one layer of insulation mechanically fastened to a structural deck with a vapor retarder and a second layer of insulation mopped in hot asphalt would be described as 1MV1A.

Two layers of insulation mopped in hot asphalt to a structural deck would be described as 2A.

One layer of insulation loose laid on a structural deck would be described as 1L.

Deck Substrate: S = Steel C = ConcreteW = Wood G = GypsumL = Lightweight Concrete T = Cementitious Wood Fiber

Insulation Specification

InsulationBottom LayerAttachment

InsulationTop LayerAttachment Deck Substrate

1MV1A Mech. Fastened Adhered S, W, L, C, G, T

1M1A Mech. Fastened Adhered S, W, L, C, G, T

1M1C Mech. Fastened Cold Adhesive S, W, L, C, G, T

1A Adhered L*, W*, C, G*, T*

2A Adhered Adhered L*, W*, C, G*, T*

1C Cold Adhesive L*, W*, C, G*, T*

1L Loose Laid S, W, L, C, G, T

1L1M Loose Laid Mech. Fastened S, W, L, C, G, T

1M Mech. Fastened S, W, L, C, G, T

1 MV2A Mech. Fastened Adhered S

V1A Adhered W**, L**, C, G**, T**

V2A Adhered Adhered W**, L**, C, G**, T**

* Insulation must be fully adhered to nailed base sheet.** Vapor barrier must be adhered to nailed base sheet.

Roof Insulation Specifications

1MV1A1 Layer AdheredMechanically

Fastened VaporRetarder1 Layer


UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive


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AdheredFirmly set the units of approved JM roof insulation, long joints continuous and short joints staggered, into a full width mopping of hot asphalt (within 25F [14C] of the EVT). The asphalt should be applied at a nominal rate

of 30 lb/100 ft2 (1.46 kg/m2). Porous substrates may require greater amounts of asphalt. Concrete decks must be primed with Asphalt Primer prior to the application of hot asphalt. Concrete deck release moisture while curing. When adhering insulation with hot asphalt, board size must be no greater than 4 x 4 (1.22 m x 1.22 m). If insulation is being installed over an existing layer of insulation or in multiple layers, all joints must be offset a minimum of 6 (152 mm) between layers. Insulation may not be adhered directly to wood, steel, gypsum, structural wood fiber or lightweight insulating concrete decks. If insulation is adhered over nailed base sheet, the nailing pattern shall be as shown below.

Apply only as much insulation as can be covered by a complete roof membrane in the same day. Do not leave insulation exposed to the weather.

When nailing a base sheet to a nailable deck, JM requires the fastening pattern illustrated below:

The side laps are secured 9 (229 mm) on center, and the center of the sheet is secured with two staggered rows of fasteners 11 (279 mm) apart, fastened 18 (457 mm) on center.

Roof Insulation SpecificationsRecommendations for Attaching

Insulation to a Structural Deck

Roof Insulation SpecificationsSpecification 1A One Layer Asphalt Attached

Note: See pages 1-12 through 1-18 for Roof Insulation Board Fastening Placement Patterns.

.

.

.

.

..

.

..

.

. ..

..

.

. ..

...

.

.. .

StructuralConcrete DeckFastener

RoofInsulation

StructuralConcrete Roof Deck

4

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..

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. ..

..

.

. ..

...

.

.. . StructuralConcrete Roof Deck

RoofInsulation

Asphalt orCold Adhesive

Asphalt Primer

6

RoofInsulation


Wood or Plywood PlywoodRoof Deck

Base Sheet

Roofing Nail (Minimum 1" Head or Cap)Fastening pattern as shown on page ___.

7

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..

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. ..

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. ..

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RoofInsulation

LightweightConcrete RoofDeck

Base Sheet

Pre-Assembled Fastener and PlateFastening pattern as shown on page ___.

5

11"

11"

11"18"

9"

Specification 1A

Asphalt PrimerWhere Required

Asphalt

Concrete Deck or Nailed Base Sheet


UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive


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Mechanically FastenedApply the units of approved JM roof insulation with long joints continuous. End joints should be staggered so that they are offset at least 12 (305 mm) from the end joints in adjacent rows. If insulation is being installed over an

existing layer of insulation, all joints in the insulation layers must be offset a minimum of 6 (152 mm) between layers. Insulation boards should be tightly butted with adjacent boards. Insulation joints greater than (13 mm) should be properly filled to receive the subsequent layers of the roofing system. Use an approved mechanical fastener of sufficient length to penetrate through or into the deck as required by the specific fastener. Fasteners should be placed in the pattern for the approval desired but never closer than 6 (152 mm) from either edge of the insulation board. On steel decks, the edges of the insulation board that run parallel to the deck rib must be solidly supported by the ribs. Fasteners are to be driven through the appropriate insulation plates. Care should be taken not to overdrive or underdrive the fastener. Overdriving the fastener will cause the insulation plate to cup and can result in inadequate performance and damage to the membrane. Underdriving can cause the insulation to be loose from the deck and allow the fastener to penetrate into the membrane.


Roof Insulation SpecificationsSpecification 1MOne Layer Mechanically Fastened

Loose LaidInsulation units may be loose laid with no means of attachment to the structural deck in SPM Specification SE4B. It is highly recommended that over steel decks, some means of mechanical fastening be used. Install

insulation units with long joints continuous. End joints should be staggered so that they are offset at least 12 (305 mm) from the end joints in adjacent rows. The units of insulation should fit snugly to adjoining units. If insulation is being installed over an existing layer of insulation or in multiple layers, all joints must be offset a minimum of 6 (152 mm) between layers. The existing layers must be dry. Apply only as much insulation as can be covered by a complete roof membrane in the same day. Do not leave insulation exposed to the weather.

Any ApprovedDeck

Specification 1L

Cold AdhesiveFirmly set the top layer of approved JM roof insulation, long joints contin-uous and short joints staggered, into JM MBR Cold Application Adhesive. The adhesive should be applied at a nominal rate of 2 to 3 gal/100 ft2 (1.02 to 1.22 l/m2), with a minimum application rate of 2 gal/100 ft2 (0.82 l/m2). If applied to porous materials, the application rate will increase, depending on the absorbency of the material. Concrete decks must be primed with Asphalt Primer prior to the application of hot asphalt. If insulation is being

installed over an existing layer of insulation or in multiple layers, all joints must be offset a minimum of 6 (152 mm) between layers. Insulation may not be adhered directly to wood, steel, gypsum, structural wood fiber or lightweight insulating concrete decks. If insulation is adhered over nailed base sheet, the nailing pattern shall be as shown in Specification 1A. Apply only as much insulation as can be covered by a complete roof membrane in the same day. Do not leave insulation exposed to the weather.

Specification 1C

Asphalt Primer

MBR Cold ApplicationAdhesive

Concrete Deck or Nailed Base Sheet

Roof Insulation SpecificationsSpecification 1L

One Layer Loose LaidSpecification 1C

One Layer Cold Adhesive Attached

Steel Plywood

Wood

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Concrete

Correct Screw must be seated to pull plate snug and flush

18-22 gauge steel deck

Point is " (19 mm) minimum thru deck

Incorrect Screw not properly seated, may puncture membrane

Screw must not be overdriven, causing plate to cup


UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive



UrethaneAdhesive


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Mechanically FastenedApply the bottom layer of approved JM roof insulation with long joints continuous. End joints should be staggered so they are offset at least 12 (305 mm) from the end joints in adjacent rows. Use an approved mechanical

fastener of sufficient length to penetrate through or into the deck as required by the specific fastener. Fasteners should be placed in the pattern for the approval desired but never closer than 6 (152 mm) from either edge of the insulation board. On steel decks, the edges of the insulation board that run parallel to the deck rib must be solidly supported by the ribs. Fasteners are to be driven through the appropriate insulation plates. Care should be taken not to overdrive or underdrive the fastener. Overdriving the fastener will cause the insulation plate to cup and can result in inadequate performance. Underdriving can cause the insulation to be loose from the deck.

Firmly set the top layer of approved JM roof insulation, long joints continuous and short joints staggered, into a full width of mopping of hot asphalt (within 25F [14C] of the EVT). The bitumen should be applied at a nominal rate of 30 Ib/100 ft2 (1.46 kg/m2). All joints must be offset a minimum of 6 (152 mm) between top and bottom layers of insulation.


See Specification 1M for proper fastening of insulation into other deck substrates.

Roof Insulation SpecificationsSpecification 1M1A Two Layers Mechanically Fastened/Asphalt Attached

Mechanically FastenedApply the bottom layer of approved JM roof insulation with long joints continuous. End joints should be staggered so they are offset at least 12 (305 mm) from the end joints in adjacent rows. Use an approved mechanical

fastener of sufficient length to penetrate through or into the deck as required by the specific fastener. Fasteners should be placed in the pattern for the approval desired but never closer than 6 (152 mm) from either edge of the insulation board. On steel decks, the edges of the insulation board that run parallel to the deck rib must be solidly supported by the ribs. Fasteners are to be driven through the appropriate insulation plates. Care should be taken not to overdrive or underdrive the fastener. Overdriving the fastener will cause the insulation plate to cup and can result in inadequate performance. Underdriving can cause the insulation to be loose from the deck.

Firmly set the top layer of approved JM roof insulation, long joints continuous and short joints staggered, into JM MBR Cold Application Adhesive. The adhesive should be applied at a nominal rate of 2 to 3 gal/100 ft2 (1.02 to 1.22 l/m2), with a minimum application rate of 2 gal/100 ft2 (0.82 l/m2). If applied to porous materials, the application rate will increase, depending on the absorbency of the material. All joints must be offset a minimum of 6 (152 mm) between top and bottom layers of insulation.


See Specification 1M for proper fastening of insulation into other deck substrates.

Roof Insulation SpecificationsSpecification 1M1C

Two Layers Mechanically Fastened/Cold Adhesive Attached

MBR Cold ApplicationAdhesive

Specification 1M1C

Steel Deck

Asphalt

Specification 1M1A

Steel Deck


UrethaneAdhesive

Hot Asphalt Cold Applied MechanicallyFastened

UrethaneAdhesive


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Roof InsulationFastening Patterns4 x 4 (1.22 m x 1.22 m) Boards


6 Fasts. / Bd.

6"6" (Typ.)

24"

4 Fasts. / Bd.

12" (Typ.)

6" (Typ.)

2 Fasts. / Bd.

12" (Typ.)

7 Fasts. / Bd.

6"

6" (Typ.)24"

12"

5 Fasts. / Bd.

6" (Typ.)

6" (Typ.)

12"

24"

24"

3 Fasts. / Bd. - Staggered

6" (Typ.)

12" (Typ.)

6" (Typ.)

12"

"21 "21 "21

8 Fasts. / Bd.

6" (Typ.)

9 Fasts. / Bd.

6"

6"6"6"

12 Fasts. / Bd.

6"6" 6"

6"12"

12"

12"

6 Fasts. / Bd.

24"6"

6"

12"

12"

5 Fasts. / Bd.

6"6"

4 Fasts. / Bd.

12"(Typ.)

24"12"12"

6"

6"

6"6"

12"

12"

12"

11 Fasts. / Bd.

18" 18"

24"6"

6"

12"

12"

7 Fasts. / Bd.

8 Fasts. / Bd.

6"12"

12"

6"24"

24"

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14 Fasts. / Bd.

6"6" 6"

6"

12"

12" 12" 12"

24"

12"

12"

6"6" 6"

6"

12"

12" 12" 12"

12"

12"

24"

18 Fasts. / Bd.

6" 6"12" 12" 12"

24"6"

6"

9"9"9"9"

22 Fasts. / Bd.

6"6" 6"

6"

12"

12" 12" 12"

12"

12"

16 Fasts. / Bd.

24"6"

6" 6"

6"

12"

12" 12" 12"

12"

12"

17 Fasts. / Bd.

6"

6"

6" 6"12" 12" 12"

24"9"9"9"9"

20 Fasts. / Bd.

6 Fasts. / Bd.

36"

6"

12" 12"

8 Fasts. / Bd.

6"

12" 12"3 Spaces @ 24"

36"

6"

12" 12"

10 Fasts. / Bd.

3 Spaces @ 24"

36"

24"

6"

12"12"

9 Fasts. / Bd.

48"

24"

6"

11 Fasts. / Bd.

48" 36"

24"

12"12"

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12" 12"3 Spaces @ 24"

6"

6"

36"

24"

12 Fasts. / Bd.

18"

18"

36"48"

24"6"

6"12"12"

18"

18"

14 Fasts. / Bd.

3 Spaces @ 24"

6"

12"16 Fasts. / Bd.

6"

24"

6"

12"

15 Fasts. / Bd.

12"4 Spaces @ 18"

18 Fasts. / Bd.

6"

6"

6"

6"

18"

6" 24 Fasts. / Bd. 6"

6"

18"

22 Fasts. / Bd. 12"12"

6"

12"

20 Fasts. / Bd.

12"6"

18"

18"

28 Fasts. / Bd.

7 Spaces @ 12"

18"

24"6"

6" 6"

32 Fasts. / Bd.

3 Spaces@ 12"

6"7 Spaces @ 12"

24"

6" 6"

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1-18 1-19RS-7388 11-13 (Replaces 11-12) RS-8628 11-13 (Replaces 2-13)

Insulation Detail Patterns forFully Adhered MembraneFA-8

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33 Fasts. / Bd.

7 Spaces @ 12"

3 Spaces@ 12"

6"6"

24"

3 Spaces@ 12"

6"

48"

36 Fasts. / Bd.

7 Spaces @ 12"

6"

24"

12"

6"

36"

36"

3 Spaces@ 12"

39 Fasts. / Bd.

7 Spaces @ 12"

6"

24"

24"

12"6"

48"

3 Spaces@ 12"

42 Fasts. / Bd.

7 Spaces @ 12"

6"

24"

24"

12"6"

12"

Roof

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1-20 1-21

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RS-8635 11-13 (Replaces 2-13)RS-8629 11-13 (Replaces 2-13)

Insulation Detail Patterns forFully Adhered MembraneUA-12

Insulation Detail Patterns forFully Adhered Membrane

FA-16 Roof Insulation Fastening PatternsRoof

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RS-8636 11-13 (Replaces 2-13)

Insulation Detail Patterns forFully Adhered Membrane

UA-12 INS

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Section Two:JM EPDM Membrane Application Guide, and Specifications

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JM EPDM Membrane Application Guide

RS-3080 3-15 (Replaces 2-14)

IntroductionThis application guide describes standard procedures for installing Johns Manville (JM) EPDM roofing systems and has been prepared for:

The Roofing Mechanic JM recognizes that the success and long-term performance of our roofing systems depend upon the personal skill, experience and knowledge of the roofing mechanic.JM EPDM roofing systems offer important advantages for roofing crews. Roofing membranes can be installed year-round with proper roof deck preparation and some adjustments for weather conditions.

About This Guide This guide is designed for your convenience. These step-by-step instructions should answer your installation questions and help you maintain top-quality craftsmanship when applying a JM EPDM roofing system.

JM EPDM Membranes There are three basic types of JM EPDM roofing systems: mechanically fastened, fully adhered and ballasted. Mechanically fastened roofs secure the membrane to the roof with fasteners and plates, which vary depending on the roof deck material.

Several construction variations are possible with mechanically fastened roofs. In fully adhered roofing systems, the membrane is bonded to the substrate with JM EPDM Membrane Adhesive (solvent based), JM EPDM Membrane Adhesive (Low VOC) or JM EPDM Membrane Adhesive (water based).Ballasted roofing systems rely on the weight of the aggregate to resist wind uplift forces.

Roof Preparation (Re-Roofing) Proper roof deck preparation is essential to simplify installation and prevent future conditions that may lead to roof leaks.Carefully sweep all roof surfaces to remove all debris and dirt. Make sure the roofing area is completely smooth. Cut out large blisters on asphalt or coal tar pitch roofs. Cut small blisters to release air or trapped gases. Remove loose nails and sharp ridges or burrs on concrete, if no insulation is used. Repair holes or cracks in concrete, less than (6.35 mm) wide with non-shrink grout. All perimeter and penetration flashings should be removed.A slip sheet is often used under the membrane. It provides a smooth surface and acts as a separator layer between an existing, damaged roof and the new roof to be applied. A layer of insulation board to act as a separator may be required for some JM EPDM re-cover systems. For full details, contact JM Technical Services.When using mechanical fasteners, if you are unsure of the deck condition, perform pull-out tests of the fasteners being used to confirm sufficient pull-out strength. For full details, contact JM Technical Services.

Section Two:JM EPDM Membrane Application Guide,

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JM EPDM Membrane Application Guide JM EPDM Membrane Application Guide

RS-3080 3-15 (Replaces 2-14) RS-3080 3-15 (Replaces 2-14)

General Guidelines for Application of Materials The proper application of roofing materials is as important to the satisfactory performance of the roofing system as the materials themselves. JM strongly recommends the following guidelines for the application of EPDM materials be followed:A. Never use wet or damaged materials.B. Never apply any roofing materials during rain or snow, or to wet or damp surfaces.

Moisture trapped within the roofing system can cause severe damage to the roofing membrane, insulation and deck, as well as cause poor quality of adhesive bonds.

C. Heed the specific cold weather application procedures described in the specifications.D. Always install the complete roofing system at one time. Phase construction is

unacceptable for any JM roofing system.E. Always install water cutoffs at the end of each days work to prevent moisture

from getting into and under the completed roof system. Water cutoffs should be completely removed prior to resuming work.

F. Never use bituminous materials in contact with any JM EPDM Single Ply Membrane. These materials are not compatible and may damage the EPDM sheet.

G. Thoroughly review the guidelines and procedures for application of the roofing system, flashings and other materials before starting work.

H. Always review the warning label and MSDS for any product, and comply with the published safety procedures for all products being used. See the Introduction section of the current JM Commercial Roofing Product Manual for health and safety recommendations.

JM EPDM Single Ply Membrane Systems JM EPDM single ply roofing systems consist of a single membrane layer of EPDM sheeting. The material is supplied in rolls of various widths and lengths. Ballasted Systems (SE4B, SE6B, SE9B) Ballasted systems are those in which the sheet is loose laid over the substrate, without any means of attachment other than at the perimeter and at penetrations. The system is held in place by stone ballast or pavers. Nonreinforced membranes are typically used in these systems.Mechanically Attached Systems (SE4RM, SE6RM, SE7RM) In mechanically attached systems, the sheet is attached to the substrate at regularly spaced intervals, via anchor disc or anchor bar systems. These systems employ a reinforced sheet as the membrane. Black 45 mil (.045 [1.1 mm]) thick, 60 mil (.060 [1.5 mm]) thick, and 75 mil (.075 [1.9 mm]) thick reinforced sheets are available for these systems.

Fully Adhered Systems (SE4A, SE6A, SE9A, SE4RA, SE6RA) Fully adhered systems are totally attached to the substrate by means of adhesive. All JM EPDM Membranes may be used in these assemblies. Membrane formulations offer superior ozone resistance and remain elastic and flexible through wide temperature ranges. An EPDM single ply membrane is impervious to water entry and resistant to weathering and UV rays.The product line includes flashing materials, adhesives, sealants, coatings and accessories, providing a single source systems approach to the roofing assembly. JM roofing systems are adaptable to many sizes and shapes of new or existing roofs. They are recommended for slopes not exceeding 2:12 for ballasted systems and not exceeding 6:12 for fully adhered and mechanically attached systems. All three systems are suitable for new construction, as well as re-roofing applications.The JM EPDM single ply specifications are written as installation guidelines only. These documents are intended to assist the specifier in developing a comprehensive bid package, in a clear and concise format. The information is presented in an

Roof DecksSee Peak Advantage Guarantee Charges and Requirements EPDM on the JM Roofing website for acceptability of roof decks with EPDM roofing systems.EquipmentThe following equipment may be needed to install JM EPDM roofing systems: Hammer drill ScissorsElectric drill Wire brushRivet gun Chalk lineSnips ShovelGravel pusher PliersHammer TongsPull-out tester Gravel-moving equipmentBrooms (soft and stiff) Lawn or linoleum rollerScrew gun Drill bits (carbide, steel)Gloves Reciprocal sawMeasuring tape Grounded extension cordsLadder First-aid kitPortable generator Utility knifeRope Screwdriver setEye protection Rubber malletWood saw RagsMetal crimpers Writing/marking instrumentsVise-grip pliers T-squareSolvent-resistant pan Rollers and brushes

General InformationThis section provides application information for JM EPDM and outlines specifications currently available through JM Technical Services. All general information contained in this section and in the current JM Commercial Roofing Product Manual shall be considered part of these specifications. JM offers JM EPDM specifications for ballasted, mechanically attached and fully adhered systems. These specifications can be installed over insulation, and over nailable, non-nailable and lightweight fill substrates.Each specification in this section is eligible to receive a JM Peak Advantage Guarantee. Refer to Section 1c on Peak Advantage Guarantees in the current JM Commercial Roofing Product Manual or contact a JM representative for additional informationPositive drainage of water off any roof membrane is necessary to prolong the service life of the system. JM, therefore, has the following policy:Drainage: Design and installation of the deck and/or membrane substrate must result in the roof draining freely, to outlets numerous enough and so located as to remove water promptly and completely within 48 hours.

Flashings: Refer to Section Three of this guide for JM EPDM single ply flashing specifications and details.

Membrane Substrate The surface on which the single ply roofing membrane is to be applied should be one of JMs roof insulations (RetroPlus, SECUROCK, ENRGY 3, Invinsa Roof Board) or an approved structural substrate. The surface must be clean, smooth and dry. Certain insulations are not acceptable for fully adhered, ballasted or mechanically attached single ply applications. Contact JM Technical Services for details.

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Solvent and Low VOC/Solvent-Based, Two-Sided Application Apply solvent-based adhesive in a smooth, even, thin coat to both membrane and approved substrate at the rates listed on specific product data sheets. Most applications apply approximately half the listed rate to the membrane and the other half to the substrate. For porous substrates such as wood and gypsum, apply more adhesive on the substrate.EPDM systems require adhesive to become tacky to the touch on both surfaces without stringers. Time will vary depending on the ambient temperature and humidity.

Water-Based, Two-Sided Application Apply water-based adhesive in a smooth, even, thin coat to both the membrane and approved substrate at the rates listed on specific product data sheets. Most applications apply approximately half the listed rate to the membrane and the other half to the substrate. For porous substrates such as wood and gypsum, apply more adhesive on the substrate. Adhesive should be tacky at point of assembly; approximate time will vary depending on the environmental conditions. Once the adhesive begins to change color (from white to clear) and feels tacky, but with no stringers (just like the solvent adhesive), carefully roll the membrane to the substrate. Avoid capturing air or creating wrinkles during this process. If adhesive is completely dry or too wet (still all white), adhesion will be compromised.

Water-Based Adhesive Cautions Water-based adhesives are white; if product appears to have disappeared after

application then adhesive is too dry and will need to be reapplied. Do not over apply. Use the coverage rate chart in this section; too much adhesive will

result in curing issues. Prior to application and curing, water-based adhesive can NEVER be exposed or stored

to temperatures below 40F. Do not apply when ambient temperatures are expected to drop below 40F within 48 hours after application

Suggested Coverage Rate Ranges

Adhesive Ft2/gal (gal/sq)Solvent-Based orLow VOC/Solvent-Based 90 (1.11) 80 (1.25) 70 (1.43) 60 (1.67) 50 (2.0)

Water-Based 130 (0.77) 120 (0.83) 110 (0.91) 100 (1.0) 90 (1.11)Product Less Adhesive / More Adhesive

Insulation and Cover Boards

Invinsa

DensDeckWood Fiber

ENRGY 3

DensDeckPrime

SECUROCKGypsum Fiber

Roof Board

Notes: Listed rates are for finished roofing areas. See JM requirements for correct application method. Two-Sided Application: Most applications apply approximately half the listed rate to the membrane and the other half to the substrate. For porous substrates such as wood and gypsum, apply more adhesive on the substrate.

explanatory fashion rather than the authoritative, instructive manner commonly utilized in construction specifications. When experience, technical knowledge or established testing procedures support a policy or position, it is clearly identified (i.e., JM requires or is not acceptable). When the use of a particular product or practice is desirable, the reference is stated as an opinion rather than absolute fact, (i.e., JM recommends or JM suggests).

Adhesive Use All membranes and substrates to be adhered must be approved by Johns Manville. Both surfaces must be clean, smooth, dry, compatible and free of contaminants and grease/oil. All fasteners, if required, must be properly seated and plates flush, leaving an acceptable surface to receive adhesive.Unroll the membrane and allow it to relax at least 30 minutes before applying adhesive, longer time is necessary in colder weather.Position the membrane with an overlap appropriate for width of seam type being used. Fold membrane back along it's entire length so that the underside of half of the sheet is exposed.Make sure adhesive container is sealed. Turn upside-down and wait a minimum of five minutes. Turn containers right side up. Carefully open and vigorously stir until adhesive is a uniform color and all solids are dispersed, with NO SWIRLS.Saturate roller by dipping into can. Roll adhesive onto substrate and membrane for smooth-backed membranes.For solvent-based adhesives, the appearance of a spider web effect will occur with stringers off the roller when the roller needs to be redipped into the adhesive. It will also be hard to push the roller.When adhesive is ready, carefully roll the membrane into the substrate, avoiding wrinkles. Apply even pressure with a lawn or linoleum roller (minimum 75 lb [34 kg]) to ensure good contact between the membrane and substrate.Do not apply adhesive in the seam area; seams are to remain clean and dry. Avoid puddling of adhesive. With adhesives, more is not necessarily better. Over-coating adhesives will lead to poor adhesion.Do not use in direct contact with polystyrene foam.Adhesive coverage, open time and dry time rates can vary dramatically depending on the particular substrate and environmental conditions. Coverage rate charts, stated herein, are approximate only. If FM Global or UL approval is required, please consult the specific RoofNavSM or UL Certification Directory for specific application rates.

Substrate for Adhered Membrane

LightweightConcrete Concrete Invinsa

SECUROCKGypsum Fiber

Roof Board Wood Fiber ENRGY 3Dens Deck

JM EPDM N/A N/A WB/SB WB/SB WB/SB WB/SB WB/SB

Key:WB - Water-BasedSB - Solvent-BasedN/A - Not Applicable

Notes: Water-Based Adhesive: Use the two-sided contact application method for all smooth-backed single ply membranes. DensDeck: Priming of the board is required. Not suitable for SECUROCK Glass-Mat roof boards.

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TopGard Coatings Application When applying TopGard 5000, use a brush, roller or spray equipment. Make sure that all surfaces are clean, dry and free of any dirt, grease, oil or other debris that may interfere with proper adhesion.It is recommended that coating be applied in two coats. The first coat should be completely dry (normally 4 to 12 hours) before applying the second coat.Temperatures must be 50F (10C) and rising during time of application. Do not apply TopGard 5000 within 24 hours of anticipated rain, dew or freezing temperatures. As with any coating, cooler temperatures and high humidity will slow the cure time.

Membrane Application It is essential that JM products be correctly installed in order for the completed roofing system to perform properly. The following procedures are to be used in performing the various operations in installing roofing products:

Positioning the Roofing Membrane Depending on the specific project, the installation may originate at the low or high point but care must be taken to ensure all the laps are shingled and do not buck water. Position the roll at the approximate application point, and unroll. If the membrane is wider than 168 (5.08 m), unfold the membrane to its fullest width. Move the membrane into place without stretching. The unfolding and movement of the membrane can be aided by waving the sheet in such a way as to pump a cushion of air under the sheet, creating a floating effect which simplifies movement of the sheet over the substrate. Allow a minimum of 30 minutes before fastening or splicing so that the membrane can relax and release any tension induced by packaging and handling. Visually inspect the membrane for any flaws or damage that would interfere with the acceptable application or performance of the membrane. Creases from the fold points can be very stubborn to flatten out, especially in cooler temperatures. These creases can create a problem when making the seam or adhering the membrane. After unrolling the first sheet at the low point of the days installation, position adjoining sheets in the same manner, lapping the edges a minimum of 3 (7.62 cm) for Field Fabricated 3 Seam Tape applications and 6(15.24 cm)for 6 Seam Tape applications. For FIT installations, overlap the sheets a maximum of 4 (10.16 cm) for 4FIT sheets and 6for 6(15.24 cm) FIT sheets. FIT Seaming Note: On hotter days over 85 degrees F or in cases where the sheets are aligned while still cool but seaming will take place at a later time, overlap the sheets a maximum of 3 (7.62cm) for 4 FIT applications and 5 for 6FIT applications on the upslope side where the seam tape faces up. Consult JM Technical Services for lap width requirements on guarantees 20 years or longer. Sheets should be laid out in an offset pattern, with a minimum of 3 (91.44 cm) between adjacent end laps. Laps should be constructed with the upslope sheet overlapping the adjoining sheet in a shingle manner to avoid any laps opposing natural drainage.

Mechanically Fastened Perimeter Fasten the EPDM membrane to the structural deck using anchor discs or High Load plates 12 (30.48 cm) o.c. maximum, with appropriate fasteners.

Adhesive Fastened Perimeter Adhere the EPDM membrane to the JM Reinforced Termination Strip (RTS) with Tape using JM EPDM Tape Primer which is fastened 12 (30.48 cm) o.c. maximum, using anchor discs or High Load plates with appropriate fasteners.

NOTE: Do not use JM EPDM Bonding Cement to attach the EPDM sheet to the RTS.

Seaming of Laps Note: Surfaces to be spliced must be cleaned and primed prior to the application of seam tape. Store seam tapes and peel and stick products in the shade when rooftop temperature exceed 75F (24C).

SurfacingsBallast Surfacing The ballast should be of a suitable type, and of sufficient amount, to provide protection against wind uplift. Local wind conditions and characteristics should be taken into account when assessing the ballast requirements. The Single Ply Roofing Industry (SPRI) has issued guidelines to assist the designer, in its Wind Design Guide for Ballasted Single Ply Roofing Systems (ANSI/SPRI RP-4). Information can also be obtained from local building codes and from FM Global Property Loss Prevention Data Sheet 1-29 Roof Deck Securement And Above-Deck Roof Components. The final decision on type and amount of ballast ultimately rests with the building owner or his or her technical representative, but should not be less than 10 lb/ft2 (1,000 lb/100 ft2 [49 kg/m2]). Note: This amount may not provide complete coverage of the JM EPDM Single Ply Membrane. JM does not supply ballast materials; however, the following materials are approved for use with ballasted Specifications SE4B, SE6B, SE9B, SE4RB, SE6RB, and SE9RB:

Nominal 1 (3.81 cm) Aggregate: Clean, smooth river bottom stone consisting of ballast gradation Size #4 (or, alternatively, Size #3), as specified in ASTM D 448 Standard Sizes of Coarse Aggregate. The ballast should consist of (#4) to 1 (1.91 cm to 3.81 cm) or (#3) 1 to 2 (2.54 cm to 5.08 cm) washed river stone with a minimum of 85% retained on a (1.91 cm) screen (#4) or 1 (2.54 cm) screen (#3).

Nominal 2 (6.35 cm) Aggregate: Clean, smooth river bottom stone consisting of ballast gradation Sizes #1 or #2 as specified in ASTM D 448 Standard Sizes of Coarse Aggregate. It should consist of 1 to 3 (3.81 cm to 8.89 cm) (#1) or 1 to 2 (3.81 cm to 6.35 cm) (#2) washed river stone with a minimum of 85% retained on a 1 (3.81 cm) screen.

Pavers: Standard pavers (minimum 18 psf [88 kg/m2]), or interlocking lightweight pavers (minimum 10 psf [49 kg/m2), may be substituted for nominal 1 (3.81 cm) stone. Interlocking, lightweight pavers with documented or demonstrated equivalent wind performance data, or 22 psf (107 kg/m2) standard pavers may be substituted for nominal 2 (6.35 cm) stone.When pavers are used as ballast, and these pavers do not incorporate integral drainage channels, the pavers must be placed on supports or pedestals. These supports or pedestals can either be commercially available products or 6 (15.24 cm) square pieces of JM EPDM Walkpad (to give an approximate [1.27 cm] air space). These supports should be located at the intersection of the corners of the paver blocks. All four corners of adjacent pavers should rest on the same 6 (15.24 cm) square piece of JM EPDM Walkpad or pedestal. The approximate (1.27 cm) air space between the pavers and the membrane will allow moisture vapor to vent to the atmosphere. When concrete pavers are not installed on pedestals or supports, one layer of JM Polyester Mat Protection Material or cured JM EPDM Membrane must be installed between the paver and the membrane. If crushed rock or ballast with sharp edges is used, a protective layer of JM Polyester Mat Protection Material or other approved protection material must be used under the ballast. Gravel ballast must be clean and free of excessive fines, to avoid clogging the drains.JM recommends that sufficient ballast be applied to the membrane surface as soon as areas are completed, to provide immediate protection against wind uplift.

Coating JM roofing systems do not require coating and must not be coated with any material not approved by JM. Bituminous based coatings will damage EPDM roofing system products and cannot be safely used for either coating or repairing

EPDM roofing systems. JM recommends using TopGard 5000, a 100% acrylic elastomeric coating, for JM EPDM roofing membrane systems.

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Tape to Standard Sheet SeamingThis method is to be utilized when seaming JM FIT rolls with standard sheets.The splice area must be completely free of all dust, debris and other contaminants. Fold back the top sheet and hold the membrane away from the seam area using the tack backprimer method or other acceptable means. Using a scrub pad apply primer to the untaped EPDM membrane in an area wider than the lap to ensure bonding to a primed surface. Allow the primer to flash off to a tacky state; utilize the push pull test technique to verify proper primer dryness. Once dry, roll the top sheet back into place forming the lap. Starting at one end of the lap, remove the release liner from the EPDM Seam Tape by peeling it back parallel to the roof surface and away from the splice at a 45 angle. Hand roll using a 2" (50 mm) steel or silicone rubber roller first diagonally across the entire splice toward the outside edge, and then along the length of the splice. Provide sufficient pressure to ensure a good seal but avoid excessive pressure that could stretch or deform the tape. EPDM Seam Tape splices must be overlapped a minimum of 2" (50 mm) to ensure a continuous tape surface.

Tape to Tape SeamingThis method is to be utilized when seaming JM FIT rolls to each other.Starting at one end of the lap simultaneously remove the plastic release liners on both the upper and lower JM EPDM FIT panels by peeling them back parallel to the roof surface and away from the splice at a 45 angle. If preferred, remove the lower liner first followed by the top liner being careful not to exceed more than a 18distance between the two. To ensure proper lap adhesion, hand roll with a 2 (5.08 cm) wide silicone rubber or steel roller, first diagonally across the entire splice toward the outside edge, and then along the length of the splice. Provide sufficient pressure to ensure a good seal but avoid excessive pressure that could stretch or deform the tape. EPDM Seam Tape splices must be overlapped a minimum of 2" (50 mm) to ensure a continuous tape surface.Membrane end laps should be completed prior to making side laps. Special precautions must be taken at sheet end laps in order to minimize the impact of t-joints created with the side lap of the adjacent sheet. Approved slip sheet must be used between the JM EPDM Membrane and any polystyrene insulation product.

Side Lap

JM EPDM Seam Tape

JM EPDM Tape Primer/Wash

End Lap

Tape Release Paper

1 (3.81 cm) Min.

JM EPDM Peel & Stick Flashing Clean and prime the area to be flashed with JM EPDM Tape Primer, or other approved cleaning method, as described in the Seaming of Laps section, to remove the talc and any dirt from the sheet, and to prime the surface for the tape application.Unroll a manageable length of JM EPDM Peel & Stick Flashing and cut to length with scissors. Peel the release paper off the JM EPDM Peel & Stick Flashing. In certain details, i.e., corners, be sure to use the JM EPDM Peel & Stick Inside/Outside Corners with a split-back release film to prevent the flashing from sticking to itself. Press the exposed tape area firmly into place in the area to be flashed. Be careful to apply the

JM EPDM Tape PrimerThoroughly mix the JM EPDM Tape Primer prior to application to suspend solids contained in the mixture. Periodically stir during use (every 5 to 10 minutes) to keep the solids in suspension. Fold back the top sheet, exposing the surfaces to be cleaned. Use JM EPDM Tape Primer to thoroughly clean talc, dirt, etc., from the surface of both sheets in the area to be joined. Using a scrubbing pad, apply JM EPDM Tape Primer to the cleaned area at the rate of 350 to 400 ft2/gal (8.6 to 9.8 m2/l). Apply JM EPDM Tape Primer past the marked area and allow to dry thoroughly prior to application of tape products. Do not dilute JM EPDM Tape Primer.Turn the scrubbing pads every 100 feet and change them often to ensure that the release agent and dirt are completely removed from the sheet. Particular attention should be given to cleaning the factory splices in the membrane, since release agent tends to accumulate in this area during the manufacturing process. Scrub the JM EPDM Tape Primer into the factory splice in the direction of the factory splice to remove the release agent.

JM EPDM Splice CleanerJM EPDM Splice Cleaner is an organic solvent mixture designed as a cleaning agent. Use to thoroughly clean dirt from JM EPDM membranes prior to applying primers or splice adhesives if needed.The splice area must be completely free of all dust and talc and surfaces must be maintained free from moisture, oil and other foreign contaminants until the splice has been completed. Areas with heavy accumulations of dirt or other contaminants should be washed with warm water and a low sudsing soap and allowed to completely dry before using JM EPDM Tape Primer.

Seam TapeField Fabricated SeamingThe splice area must be completely free of all dust, debris and other contaminants. Fold back the top sheet and hold the membrane away from the seam area using the tack backprimer method or other acceptable means. Using a scrub pad apply primer to both the folded EPDM membrane and bottom sheet in an area wider than the lap to ensure bonding to a primed surface. Allow the primer to flash off to a tacky state; utilize the push pull test technique to verify proper primer dryness.

Unroll approximately a 15" (38.1 cm) length of the tape and apply to the bottom sheet along the lap edge. Continue unrolling 15" (38.1 cm) lengths of EPDM Seam Tape and secure in place along the entire length of the seam. With the release liner still in place, roll the entire length of the seam with a 2" (50 mm) steel or silicone rubber roller to ensure good contact of the EPDM Seam Tape with the bottom EPDM sheet. Roll the top EPDM sheet back over the EPDM Seam Tape, with the release liner still in place, leaving approximately " (6 mm) of tape exposed. The top EPDM sheet should fall freely onto the exposed EPDM Seam Tape surface. Remove the release liner from the EPDM Seam Tape by peeling it back parallel to the roof surface and away from the splice at a 45 angle.

Hand roll first diagonally across the entire splice toward the outside edge, and then along the length of the splice. Provide sufficient pressure to ensure a good seal but avoid excessive pressure that could stretch or deform the tape. EPDM Seam Tapes splices must be overlapped a minimum of 2" (50 mm) to ensure a continuous tape surface.

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JM EPDM Peel & Stick Flashing without over-stretching the material. Apply pressure to the installed flashing with a 2 (5.08 cm) wide silicone roller, first diagonally to the edge of the sheet, and then along the entire length of the flashing, to ensure proper adhesion.

Adjacent sheets of peel-and-stick flashing products must be lapped a minimum of 3 (7.62 cm) and primed with Tape Primer. Stitch the material tight in areas where the sheet makes elevation changes. Care should be taken during rolling to avoid scoring, gouging or thinning the product.

JM EPDM Peel & Stick T-Joint Patches All t-joints in cured sheets and butt joints in field seams must be covered by a patch that extends a minimum of 3 (7.62 cm) beyond all seam edges. It is acceptable to use any uncured JM EPDM Peel & Stick Flashing product of the appropriate size. The sheets are cleaned and primed as described previously. Remove the release paper and center the JM EPDM Peel & Stick Patch over the butt joint or t-joint and press it into place. Apply pressure to the installed patch with a 2 (5.08 cm) wide silicone roller to ensure proper adhesion. See flashing detail EL-14T for an illustration of a t-joint.

JM EPDM Reinforced Termination Strip (RTS) JM EPDM RTS has splice tape pre-applied along one edge of 6 (15.24 cm) reinforced JM EPDM Membrane. JM EPDM RTS with Tape can be installed horizontally or verti-cally in the angle change with the pre-applied tape facing up and toward the field of the roof. See detail EB-2T or EB-3T. Position seam fastening plates 8 (3.18 cm) to 1 (2.54 cm) from the angle change. 12 (30.48 cm) o.c. maximum spacing is required. Secure with an approved fastener. Do not fasten plates over the top of release film, as this will cause film to tear when removed. Roll the field membrane onto the exposed tape and apply hand pressure to the splice area.

Application of Water Cutoffs Water cutoffs are used to temporarily adhere roofing membrane to the roofing system substrate at the end of each days work, to prevent moisture from getting under the roofing system.Fold the edge of the roofing membrane back a minimum of 12" (30.48 cm). Clean the surface of the folded-back membrane with JM EPDM Tape Primer or other approved cleaning method. Apply a " (6.35 mm) bead of JM EPDM Sealing Mastic or JM EPDM Pourable Sealer on the cleaned area of the sheet. If the roofing membrane installation is to be delayed for 14 days or more, or if the substrate surface is rough, apply two " (6.35 mm) beads of sealant. Next, fold the roofing membrane forward so that the bead(s) of sealant are in contact with the substrate. For proper adhesion, the surface of the substrate must be dry and free of dirt, dust or solvents. On existing bituminous roofs, all gravel and dirt must be removed in the area to be adhered.Press the membrane into place over the sealant. Weight the edge of the sheet so that continuous pressure is applied over the area sealed to the substrate.When the project is to resume, the sheet should be pulled loose from the substrate. The area to which the sealant has been applied should be cut off.

Phase Construction One of the greatest hazards of roof construction is the application of a roofing system in phases, where a partially completed roof system is left exposed to the weather for a period of time, even overnight. The remainder of the roofing system is installed at a later time. This can lead to entrapped moisture, which can cause premature failure of the roofing system.Phase construction is unacceptable with any application.Good roofing practice dictates that no more roofing area be started than can be completed that day. This means that the finished membrane MUST be installed and seamed all in the same day. Water cutoffs must be installed at all exposed edges and removed when application is restarted.

Cold Weather ApplicationsRoof applications below 40F (4C) require special precautions to ensure proper performance of the roofing system. JM strongly recommends that the following guidelines be used when applying roofing systems in cold weather. 1. Let the membrane relax longer, and work on sunny days, if possible. 2. Keep all adhesives warm so that they can be applied in a thin, uniform film. 3. Keep all seam tapes, cements and sealants at room temperature until they are used, so they can be applied properly. 4. Allow adequate time for the solvents in the cements and primers to flash off so that the laps will be properly fabricated. Check the dryness of the applied cements and primers carefully before joining the surfaces together. 5. Make sure that all frost and dew has evaporated before covering the roof deck and/or insulation with the membrane to prevent the entrapment of moisture within the finished roofing system.

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RS-9306 2-15 (Replaces 12-13)

JM EPDM General Product Specifications

Section Two:JM EPDM Membrane Application

Guide, and Specifications

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SE4RAS = Single PlyMembrane TypeR = ReinforcedNR = Nonreinforced

E = EPDM Mebrane

AttachmentA = Fully AdheredB = BallastM = Mechanically Fastened

Membrane Thickness 4 = 45 mil (1.14 mm)6 = 60 mil (1.52 mm)7 = 75 mil (1.90 mm)9 = 90 mil (2.29 mm) 2BEPDM Membrane

Specifications Mechanically Fastened Roof Finder IndexSurface Region* Substrate Roof Slope Membrane Spec. Number Page

Smooth All I/N Up to 2:12 EPDM 45 R SE4RM 2-16 EPDM 60 R SE6RM EPDM 75 R SE7RM

Ballasted Roof Finder IndexSurface Region* Substrate Roof Slope Membrane Spec. Number Page

Ballasted All I/N Up to 6:12 EPDM 45 NR SE4B 2-19 EPDM 60 NR SE6B EPDM 90 NR SE7B EPDM 45 R SE4RB EPDM 60 R SE6RB EPDM 75 R SE7RB

FIT Ballasted Roof Finder IndexSurface Region* Substrate Roof Slope Membrane Spec. Number Page

Ballasted All I/N Up to 6:12 EPDM 60 NR SE6B-FIT 2-22 EPDM 90 NR SE9B-FIT

Fully Adhered Roof Finder IndexField Fabrication SeamingSurface Region* Substrate Roof Slope Membrane Spec. Number Page

Smooth All I/N Up to 6:12 EPDM 45 NR SE4A 2-26 EPDM 60 NR SE6A EPDM 90 NR SE7A EPDM 45 R SE4RA EPDM 60 R SE6RA EPDM 75 R SE7RA

FIT Fully Adhered Roof Finder IndexSurface Region* Substrate Roof Slope Membrane Spec. Number Page

Smooth All I/N Up to 6:12 EPDM 60 NR SE6A-FIT 2-29 EPDM 90 NR SE9A-FIT

Note: I = Insulated Deck, N = Nailable Deck *See Tab 1.1, page 1-2 of the Current Johns Manville Commercial Roofing Product Manual.

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JM EPDM Membrane Specifications SE4RM/SE6RM/SE7RM (cont'd)


GeneralThis specification is for use over any type of approved structural deck which is suitable to receive a mechanically fastened membrane system and which can adequately retain the required mechanical fasteners. This specification is also for use over certain JM roof insulations which provide a suitable surface for the JM EPDM membrane. Insulation should be installed in accordance with the appropriate JM Insulation Specification detailed in Section 1 of this application guide book. This specification can also be used in certain re-roofing applications.

Note: Consider all general instructions contained in this application guide book and in the current JM Commercial Roofing Product Manual as part of the specification.

DesignConsider local conditions and characteristics when designing, specifying and installing any roofing system. Information from the Single Ply Roofing Industry (SPRI), FM Global and local building codes can provide guidelines for the designer.

Design and installation of the deck and/or roof substrate must result in the roof draining freely to outlets numerous enough and so located as to remove water promptly.

Deck PreparationEnsure the deck is clean, dry and smooth. All deck fasteners should be driven flush to the substrate with no sharp edges. Holes and gaps should be evaluated and patched as appropriate.

Flashings Refer to the JM EPDM Flashing Details in Section 3 of this guide, or on the Web at www.jm.com/roofing.

EPDM Membrane ApplicationUnroll and unfold the membrane to its fullest width. Move the membrane into place without stretching. When possible, begin the installation at the lowest point. Allow a minimum of 30 minutes prior to installation so that the membrane can relax. Apply the adjoining sheets in the same manner, lapping the edges a minimum of 6" (15.24 cm) along the long dimension and 3" (7.62 cm) minimum for end laps. Sheets should be laid out in an offset pattern, with a minimum of 3' (91.44 cm) between adjacent end laps. Laps should be constructed with the upslope sheet overlapping the adjoining sheet in a shingle manner to avoid any laps opposing natural drainage.

To mechanically secure the membrane to the substrate, the bottom sheet of the lap is mechanically fastened. Secure the membrane along the pre-printed line that is approximately 3" (7.62 cm) from the edge of the sheet, with the acceptable EPDM fastener and plate, spaced a maximum of 12" (30.48 cm) on center.

Seaming of LapsThe splice area must be completely free of all dust, debris and other contaminants. Fold back the top sheet. EPDM Tape Primer is then applied to both sheets in an area wider than the lap to ensure bonding to a primed surface. Unroll approximately 15" (38.1 cm) length of the tape and apply to the splice area. Continue unrolling 15" (38.1 cm) lengths of EPDM Seam Tape and secure in place along the entire length of the seam. With the release paper still in place, roll the entire length of the seam with a 2" (50 mm) steel roller to ensure good contact of the EPDM Seam Tape with the bottom EPDM sheet.

Roll the top EPDM sheet back over the EPDM Seam Tape, with the release paper still in place, leaving approximately " (6 mm) of tape exposed. Remove the release paper from the EPDM Seam Tape by peeling it back parallel to the roof surface and away from the splice at a 45 angle. The top EPDM sheet should fall freely onto the exposed EPDM

JM EPDM Membrane Specifications SE4RM/SE6RM/SE7RM

Refer to the Safety Data Sheet and product label prior to using this product.

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JM EPDM Membrane Specifications SE4RM/SE6RM/SE7RM (cont'd)

Note: For the most current information on general guidelines, please refer to the System Considerations tab under Systems Introduction & Selection on the JM Roofing Web site. For specifications, flashing details and general installation information please refer to the System Application tab.


Seam Tape surface. Hand roll using a 2" (50 mm) steel roller, first diagonally across the entire splice toward the outside edge of the splice, and then along the length of the splice. Provide sufficient pressure to ensure a good seal. EPDM Seam Tapes must be overlapped a minimum of 2" (50 mm) to ensure a continuous tape surface.

Perimeter AttachmentSecure the JM EPDM roofing membrane at the perimeter and penetrations using RTS Strip or mechanical fasteners as appropriate. Refer to the JM EPDM Flashing Details in Section 3 of this guide for further information.

Perimeters and Corners shall comply with FM Global Loss Prevention Data Sheet 1-28 and 1-29 and be enhanced utilizing either Reinforced Termination Strip or additional rows of fasteners placed through the sheet and covered with Peel and Stick Sealing Strip. Refer to the appropriate JM Fastening Diagram for additional information.

JM EPDM Membrane Specifications SE4B, SE6B, SE9B, SE4RB, SE6RB, SE7RB Ballasted Installation

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JM EPDM Membrane Specifications SE4B, SE6B, SE9B, SE4RB, SE6RB, SE7RB Ballasted Installation (cont'd)

JM EPDM Membrane Specifications SE4B, SE6B, SE9B, SE4RB, SE6RB, SE7RB

Ballasted Installation (cont'd)

GeneralThis specification is for use over any type of approved structural deck which is suitable to receive a ballasted membrane system. This specification is also for use over certain JM roof insulations which provide a suitable surface for the JM EPDM membrane. Insulation should be installed in accordance with the appropriate JM Insulation Specification detailed in Section 1 of the current EPDM Commercial Roofing Application Guide book. This specification can also be used in certain re-roofing applications.Note: Consider all general instructions contained in the current EPDM Commercial Roofing Application Guide book as part of the specification. DesignConsider local conditions and characteristics when designing, specifying and installing any roofing system. Information from the Single Ply Roofing Industry (SPRI), FM Global and local building codes can provide guidelines for the designer.This specification shall only be installed where the structure can accommodate the weight of the complete roofing system, including insulation, membrane, ballast, snow loads, etc. The determination of whether or not the structure is capable of supporting the weight of the complete roofing system is solely the responsibility of the owner and their design professional.Design and installation of the deck and/or roof substrate must result in the roof draining freely to outlets numerous enough and so located as to remove water promptly.Deck PreparationEnsure the deck is clean, dry and smooth. All deck fasteners should be driven flush to the substrate with no sharp edges. Holes and gaps should be evaluated and patched as appropriate.Flashings Refer to the Flashing Details in Section 3 of the EPDM Commercial Roofing Application Guide Book, or on the Web at www.jm.com/roofing.Insulation ApplicationStore products per manufactures recommendations. Remove any wet product and discard.A minimum offset of 6" (15.2 cm) is recommended from the previous layer of insulation. The top layer of insulation must be a minimum 1.5" (3.8 cm) thick.Position the insulation with the long side of the board running parallel with the flutes of the steel deck only. Each of the edges must be centered on the flute top of a steel deck. No board widths less then 6" (15.2 cm) are allowed. Perimeters and corners fastener density must be enhanced per FM publication 1-29. EPDM Membrane ApplicationIt is essential that JM products be correctly installed in order for the completed roofing system to perform properly. The following procedures are to be used in performing the various operations in installing roofing products:Position the roll at the approximate application point, and unroll. If the membrane is wider than 168 (5.08 m), unfold the membrane to its fullest width. Move the membrane into place without stretching. Allow a minimum of 30 minutes before fastening or splicing so that the membrane can relax and release any tension induced by packaging and handling. After unrolling the first sheet position adjoining sheets in the same manner, lapping the edges a minimum of 3 (7.62 cm) for Field Fabricated 3 Seam Tape applications and 6(15.24 cm) for 6 Seam Tape applications. Sheets should be laid out in an offset pattern, with a minimum of 3 (91.44 cm) between adjacent end laps. Laps should be constructed with the upslope sheet overlapping the adjoining sheet in a shingle manner to avoid any laps opposing natural drainage. Seaming of Laps The splice area must be completely free of all dust, debris and other contaminants. Fold back the top sheet and hold the membrane away from the seam area using the tack backprimer method or other acceptable means. Using a scrub pad apply primer to both the folded EPDM membrane and bottom sheet in an area wider than the lap to ensure bonding to a primed surface. Allow the primer to flash off to a tacky state. Unroll approximately a 15" (38.1 cm) length of the tape and apply to the bottom sheet along the lap edge. Continue unrolling 15" (38.1 cm) lengths of EPDM Seam Tape and secure in

Note: For the most current information on general guidelines, please refer to the System Considerations tab under Systems Introduction & Selection on the JM Roofing Web site. For specifications, flashing details and general installation information please refer to the System Application tab.


place along the entire length of the seam. With the release liner still in place, roll the entire length of the seam with an appropriate roller to ensure good contact of the EPDM Seam Tape with the bottom EPDM sheet. Roll the top EPDM sheet back over the EPDM Seam Tape, with the release liner still in place, leaving approximately " (6 mm) of tape exposed. Remove the release liner from the EPDM Seam Tape by peeling it back parallel to the roof surface and away from the splice at a 45 angle. Hand roll first diagonally across the entire splice toward the outside edge, and then along the length of the splice. Provide sufficient pressure to ensure a good seal but avoid excessive pressure that could stretch or deform the tape. EPDM Seam Tapes splices must be overlapped a minimum of 2" (50 mm) to ensure a continuous tape surface. When there is a splice in the seam tape, that location must be stripped in with either 6 minimum Peel & Stick Flashing or a T-Joint patch.Surfacing Requirements for type and amount of ballast are as follows:Ballast Surfacing The ballast should be of a suitable type, and of sufficient amount, to provide protection against wind uplift. Local wind conditions and characteristics should be taken into account when assessing the ballast requirements. The Single Ply Roofing Industry (SPRI) has issued guidelines to assist the designer in its Wind Design Guide for Ballasted Single Ply Roofing Systems (ANSI/SPRI RP-4). Information can also be obtained from local building codes and from FM Global Loss Prevention Data Sheet 1-29. The final decision on type and amount of ballast ultimately rests with the building owner or his or her technical representative but should not be less than 10 lb/ft2 (1000 lb/100 ft2 [48.8 kg/m2]). Note: this amount may not provide complete coverage of the EPDM membrane. JM does not supply ballast materials; however, the following materials are approved for use with ballasted Specifications SE4B and SE6B: Nominal 1" (40 mm) Aggregate: Clean, smooth, river bottom stone consisting of ballast gradation Size #4 (or, alternatively, Size #3), as specified in ASTM D 448 Standard Sizes of Coarse Aggregate. The ballast should consist of (#4) " to 1" (20 mm to 40 mm) or (#3) 2" to 1" (50 mm to 25 mm) washed river stone with a minimum of 85% retained on a " (20 mm) screen (#4) or a 1" (25 mm) screen (#3). Nominal 2" (65 mm) Aggregate: Clean, smooth river bottom stone consisting of ballast gradation Sizes #1 or #2 as specified in ASTM D 448 Standard Sizes of Coarse Aggregate.It should consist of 3" to 1" (90 mm to 40 mm) (#1) or 2" to 1" (65 mm to 40 mm) (#2) washed river stone with a minimum of 85% retained on a 1" (40 mm) screen.If crushed rock or ballast with sharp edges is used, a protective layer of JM Polyester Mat Protection Material, or other approved protection material must be used under the ballast. Gravel ballast must be clean and free of excessive fines, to avoid clogging the drains.Pavers Standard pavers (minimum 18 psf [87.9 kg/m2]), or interlocking lightweight pavers (minimum 10 psf [48.8 kg/m2]) may be substituted for nominal 1" (40 mm) stone. Interlocking, lightweight pavers with documented or demonstrated equivalent wind performance data or 22 psf (107.4 kg/m2) standard pavers may be substituted for nominal 2" (65 mm) stone. When pavers are used as ballast, and these pavers do not incorporate integral drainage channels, the pavers must be placed on supports or pedestals. These supports should be located at the intersection of the corners of the paver blocks. All four corners of adjacent payers should rest on the same 6" (150 mm) square support or pedestal. The approximate " (15 mm) air space between the pavers and the membrane will allow moisture vapor to vent to the atmosphere. When concrete pavers are not installed on pedestals or supports,one layer of JM Polyester Mat Protection Material, or another approved slip sheet must be installed between the paver and the membrane.JM recommends that sufficient ballast be applied to the membrane surface as soon as areas are completed, to provide immediate protection against wind uplift.

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RS-3060 3-15 (New)RS-3060 3-15 (New)

GeneralThis specification is for use over any approved structural deck including wood decks which is suitable to receive a mechanically fastened insulation. This specification can also be used in certain re-roofing applications.Install insulation in accordance with the appropriate JM insulation specification detailed in the current JM EPDM Commercial Roofing Application Guide book. Insulation: Mechanically fasten using UltraFast Fasteners and Plates Membrane: Secure using approved adhesiveNote: Consider all general instructions contained in the current EPDM Commercial Roofing Application Guide book as part of the specification.DesignConsider local conditions and characteristics when designing, specifying and installing any roofing system. Information from the Single Ply Roofing Industry (SPRI), FM Global and local building codes can provide guidelines for the designer.This specification shall only be installed where the structure can accommodate the weight of the complete roofing system, including insulation, membrane, ballast, snow loads, etc. The determination of whether or not the structure is capable of supporting the weight of the complete roofing system is solely the responsibility of the owner and their design professional.Design and installation of the deck and/or roof substrate must result in the roof draining freely to outlets numerous enough and so located as to remove water promptly. Minor ponding is acceptable.Deck PreparationEnsure the deck is clean, dry and smooth so that the insulation lays flat. Steel decks must be a minimum 22 gage and FM approved fastening methods must be followed to achieve the desired uplift. Please check with the deck manufacturer for further guidelines.Flashings Refer to the Flashing Details in Section 3 of the EPDM Commercial Roofing Application Guide Book, or on the Web at www.jm.com/roofing.Insulation ApplicationStore products per manufactures recommendations. Remove any wet product and discard.A minimum offset of 6" (15.2 cm) is recommended from the previous layer of insulation. The top layer of insulation must be a minimum 1.5" (3.8 cm) thick.Position the insulation with the long side of the board running parallel with the flutes of the steel deck only. Each of the edges must be centered on the flute top of a steel deck. No board widths less then 6" (15.2 cm) are allowed. Perimeters and corners fastener density must be enhanced per FM publication 1-29. EPDM Membrane Application It is essential that JM products be correctly installed in order for the completed roofing system to perform properly. The following procedures are to be used in performing the various operations in ins

JM Roofing Systems Application Guide Book 4

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Transcript of JM Roofing Systems Application Guide Book 4