A6A_GSP_WFO_Roof_and_HVAC_Replacement_Statement_of_Work_Attachment_6A.pdf
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- Roof & HVAC Replacement NWS WFO in Greer, SC
- Solicitation number
- 1305M326Q0300
About this file
This is a product specification sheet for JM White EPDM NR 60 mil, an ethylene propylene diene monomer (EPDM) membrane manufactured by Johns Manville for roofing applications. The product is a nonreinforced, cured white EPDM membrane that meets ASTM D 4637, Type I requirements and is available in two roll sizes: 10' x 100' (1,000 ft² coverage) and 20' x 100' (2,000 ft² coverage). The membrane features a fully extruded construction that produces fewer air voids and more uniform thickness, combined with a vulcanization process that creates a fully cross-linked monolithic membrane. Key performance characteristics include a reflectivity rating of 0.787 (initial) and 0.755 (3-year CRRC rapid rating), emissivity of 0.90, and an initial Solar Reflectance Index (SRI) of 98, meeting LEED and CRRC requirements for reflective roof systems.
The product is compatible with multiple single-ply roofing systems including TPO, PVC, and EPDM systems using various installation methods such as mechanically fastened, adhered, self-adhered, induction weld, and ballasted applications. Tested physical properties exceed ASTM D 4637 Type I standards, with tensile strength of 1,355 psi, ultimate elongation of 465%, tear resistance of 235 lbf/in., and excellent performance in dynamic and static puncture resistance testing. The membrane demonstrates superior longevity characteristics including a brittleness point below -49°F, ozone resistance, low water absorption (2.0 mass%), and minimal water vapor permeance (0.05 perms). Heat-aged performance (670 hours at 240°F) and weathering resistance testing confirm the product maintains structural integrity and elongation properties after extended exposure. Johns Manville offers product guarantees up to 25 years when used in most JM EPDM systems, with enhanced guarantees available for wind and puncture protection. Installation requires priming the white EPDM membrane with either JM Single Ply Membrane Primer (LVOC) or JM TPO Membrane Primer before applying accessories, with detailed guidance provided in JM EPDM Application Guides and Detail Drawings.
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JM WHITE EPDM NR 60 mil Ethylene Propylene Diene Monomer Membrane
Installation/Application
• Prime White EPDM membrane with JM Single Ply Membrane Primer (LVOC) or JM TPO Membrane Primer before applying JM White EPDM Accessories.
• Refer to JM EPDM Application Guides and Detail Drawings for instructions.
Packaging and Dimensions
Roll Size Roll
Coverage 10' x 100' (3.05 m x 30.48 m) 1000 ft2 (92.9 m2) 20' x 100' (6.1 m x 30.48 m) 2000 ft2 (185.8 m2)
Meets the requirements of ASTM D 4637, Type I
Features and Components Membrane: Nonreinforced, cured White EPDM (ethylene propylene diene monomer).
Fully Extruded: Produces fewer air voids, more uniform thickness and smoother sheets.
Vulcanization Process: Combines two layers of membrane to produce a fully cross-linked monolithic membrane.
Membrane Formulation: Performs in extreme temperature climates and withstands differential movement (elongation).
UV-Stabilization Properties: Offers outstanding ozone and weather resistance delivering one of the longest service lives available.
Technical Expertise: Backed by 30+ years of EPDM experience and installations.
Reflectivity: JM White EPDM meets or exceeds LEED and CRRC requirements for a reflective roof system.
Energy and the Environment Property Value Reflectivity* (ASTM C 1549) 0.787 Reflectivity - CRRC 3 yr Rapid Rating
(ASTM D7897) 0.755
Emissivity* (ASTM C 1371) 0.90 Emissivity - CRRC 3 yr Rapid Rating
(ASTM D7897) 0.89
SRI - Initial (ASTM E1980) 98 SRI - 3 year Rapid Rating (ASTM E1980) 93 Post-Consumer Recycled Content 0% Pre-Consumer Recycled Content 0%
*Test methods for reflectivity and emissivity are LEED®- and CRRC®-approved.
Peak Advantage® Guarantee Information Enhanced guarantees are now available on certain systems for wind and puncture.
Consult your local sales representative for more information and for specific guarantee terms and costs.
Product Guarantee Term When used in most JM EPDM Systems* Up to 25 years
*Contact JM Technical Services for specific systems.
Codes and Approvals
Component
M Membrane
Single Ply
Color White
RS-1770 5-25 (Replaces 2-25)
System Compatibility This product may be used as a component in the following systems. Please reference product application for specific installation methods and information.
M ul ti- Pl y BUR APP SBS
Si ng le P ly TPO PVC EPDM
HA CA HW HA CA HW SA MF MF AD SA IW MF AD IW MF AD BA
Do not use with multi-ply systems Compatible with the selected single ply systems above
Key: HA = Hot Applied CA = Cold Applied HW = Heat Weldable SA = Self Adhered MF = Mechanically Fastened IW = Induction Weld BA = Ballasted AD = Adhered
Adhered
JM WHITE EPDM NR 60 mil Ethylene Propylene Diene Monomer Membrane
Tested Physical Properties Physical Properties
ASTM
Test Method
Standard for ASTM D 4637, Type I JM EPDM – NR 60 mil
St re ng th
Tensile Strength (psi) D 412 > = 1305 1355
Elongation, Ultimate (%) D 412 > = 300 465
Tensile Set (%) D 412 < = 10 8
Tear Resistance (lbf/in.) D 624 > = 150 235
Dynamic Puncture Resistance, 5J, Type I D 5635 pass pass
Static Puncture Resistance, 44.1 lbf, Type I D 5602 pass pass
Lo ng ev ity
Overall Sheet Thickness (in.) D 751 +/- 10% pass
Brittleness Point (°F) D 2137 < = -49 pass
Ozone Resistance D 1149 pass pass
Water Absorption (mass %) D 471 < = 8 2.0
Water Vapor Permeance E 96 0.10 0.05 Perms
He at
A ge d Pe rfo rm an ce
Heat Aged 670 hrs @ 240°F D 573
Tensile Strength (psi) D 412 > = 1205 1516
Elongation, Ultimate (%) D 412 > = 200 365
Tear Resistance (lbf/in.) D 624 > = 125 214
Linear Dimensional Change (%) D 1204 < +/- 1 0.0
Resistance to Outdoor (UV) Weathering G155 No Cracks, No Crazing 7,560 kj/m2
No Cracks, No Crazing, 20,000 kj/m2, 8,000 hrs.
W ea th er in g
Pe rfo rm an ce
Weathering Resistance, 5040 KJ/(m2-nm) @ 340 nm D 4637 / G 151 / G 155
Visual Inspection – pass pass
Elongation, Ultimate (%) D 412 > = 200 351
PRFSC (%) D412 > = 30 78
Meets the requirements of ASTM D 4637, Type I
RS-1770 5-25 (Replaces 2-25)
Technical specifications as shown in this literature are intended to be used as general guidelines only. Please refer to the Safety Data Sheet and product label prior to using this product. The Safety Data Sheet is available by calling
(800) 922-5922 or on the web at www.jm.com/roofing. The physical and chemical properties of the product listed herein represent typical, average values obtained in accordance with accepted test methods and are subject to normal manufacturing variations. They are supplied as a technical service and are subject to change without notice. Check with the regional sales representative nearest you for current information.
All Johns Manville products are sold subject to Johns Manville’s standard Terms and Conditions, which includes a Limited Warranty and Limitation of Remedy. For a copy of the Johns Manville standard Terms and Conditions or for information on other Johns Manville roofing products and systems, visit www.jm.com/terms-conditions.
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