Reinforced EPDM Roofing Membrane
Common Product
MasterFormat 07 50 00 Membrane Roofing; 07 53 00 Elastomeric Membrane Roofing; 07 53 23 Ethylene-Propylene-Diene-Monomer Roofing

This information reflects our best understanding of product composition in 2021.

This Common Product describes a black single-ply roofing membrane constructed from ethylene propylene diene monomer (EPDM) rubber. EPDM membranes are manufactured through a calendaring process that ensures the finished membrane is watertight. It...

More about Reinforced EPDM Roofing Membrane

This Common Product describes a black single-ply roofing membrane constructed from ethylene propylene diene monomer (EPDM) rubber. EPDM membranes are manufactured through a calendaring process that ensures the finished membrane is watertight. It is then vulcanized, which generates crosslinks between the polymer chains. This makes it a thermoset material in contrast to PVC and TPO (thermoplastic polyolefin) membranes, which are both thermoplastic. Although non-vulcanized membranes are available they are beyond the scope of this Common Product. EPDM membranes are traditionally black in color, but white EPDM membranes are also available. In the latter, carbon black is replaced by titanium dioxide. While white EPDM membranes are often recommended to increase solar reflectivity, black membranes are sometimes recommended for cooler climates that have a higher percentage of heating days relative to cooling days. In addition, black EPDM membranes that are ballasted (loose laid with gravel) have lower rooftop temperatures than membranes that are mechanically attached or attached with adhesives (fully adhered). 

EPDM membranes can contain a scrim within the membrane for reinforcement or can be non-reinforced. Reinforced membranes are recommended for both fully adhered and mechanically fastened systems. Unlike other types of single-ply membranes the seams cannot be heat welded, so they must be joined with either a liquid adhesive and sealant or with seam tape and a splice primer. These products could add additional hazards not considered in this Common Product. 

In the past, some EPDM roofing membranes included brominated flame retardants. While the sources reviewed suggest that industry has moved away from the use of halogenated flame retardants, there is currently very little disclosure on the specific flame retardants used in these products. Consequently, the use of halogenated flame retardants is still possible. Products are advertised as fire retardant may contain additional flame retardants beyond those captured by this Common Product.

A historical version of this Common Product is available here: https://pharosproject.net/common-products/2214466

Name % Wt Whole Function GS Score Sources
Bicyclo(2.2.1)hept-2-ene, 5-ethylidene-, polymer with ethene and 1-propene
25038-36-2
31.04% Polymer Subscribe to view
Carbon black
1333-86-4
22.63% Pigment, Filler Subscribe to view
Kaolin
1332-58-7
22.52% Filler Subscribe to view
DISTILLATES (PETROLEUM), SOLVENT DEWAXED LIGHT PARAFFINIC DISTILLATE
64742-56-9
18.50% Plasticizer, Process Oil Subscribe to view
Aluminum hydroxide, dried
21645-51-2
2.25% Flame Retardant Subscribe to view
Zinc oxide
1314-13-2
1.15% Activator Subscribe to view
Polyethylene Terephthalate (PET)
25038-59-9
1.00% Polymer Subscribe to view
Titanium dioxide
13463-67-7
<0.01% Pigment Subscribe to view
Irganox 1010
6683-19-8
<0.01% Antioxidant Subscribe to view
ANTIMONY TRIOXIDE
1309-64-4
<0.01% Residual Catalyst Subscribe to view
Stearic acid
57-11-4
0.38% Activator Subscribe to view
Thiram
137-26-8
0.35% Accelerator Subscribe to view
Mercaptobenzothiazole
149-30-4
0.18% Accelerator Subscribe to view
Name % Wt Part % Wt Whole Function GS Score Sources
Bicyclo(2.2.1)hept-2-ene, 5-ethylidene-, polymer with ethene and 1-propene
25038-36-2
31.04% 31.04% Polymer Subscribe to view
Carbon black
1333-86-4
22.63% 22.63% Pigment, Filler Subscribe to view
Kaolin
1332-58-7
22.52% 22.52% Filler Subscribe to view
DISTILLATES (PETROLEUM), SOLVENT DEWAXED LIGHT PARAFFINIC DISTILLATE
64742-56-9
18.50% 18.50% Plasticizer, Process Oil Subscribe to view
Aluminum hydroxide, dried
21645-51-2
2.25% 2.25% Flame Retardant Subscribe to view
Zinc oxide
1314-13-2
1.15% 1.15% Activator Subscribe to view
Polyester Scrim in Single-ply Roofing Membrane
1.00% 1.00% Strucure component Subscribe to view  
Polyethylene Terephthalate (PET)
25038-59-9
99.56% 1.00% Polymer Subscribe to view
Titanium dioxide
13463-67-7
0.30% <0.01% Pigment Subscribe to view
Irganox 1010
6683-19-8
0.08% <0.01% Antioxidant Subscribe to view
ANTIMONY TRIOXIDE
1309-64-4
0.06% <0.01% Residual Catalyst Subscribe to view
Stearic acid
57-11-4
0.38% 0.38% Activator Subscribe to view
Thiram
137-26-8
0.35% 0.35% Accelerator Subscribe to view
Mercaptobenzothiazole
149-30-4
0.18% 0.18% Accelerator Subscribe to view

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Known or Potential Residuals
Known or Potential Residuals for Chemical
CASRN NAME GS SCORE TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCE
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Other Process Chemicals
CASRN NAME GS Score TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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HBN Resources (2)
HBN Resources for Product
TYPE TITLE
Discussion Carbon vs Chemicals
Template Manufacturer Product Disclosure Request Template
Sources
Sources for Common Product Data
Source Uploaded Document Linked Document
Accelerators for Rubbers
Activators for Sulfur Vulcanization
Akrochem PEG 3350
Al-Sabagh 2016
antioxidants and antiozonants
ASTM D3568-03
Athena
Barker 1975
Biver 2021
Brenntag Steric Acid
Buildings EPDM
Carlisle Reinforced EPDM EPD
Carlisle Sure-Flex EPD
Carlisle US20180291163A1
Cooley Group 2014
De Buyck 2021
Dupont US4418116A
Energy Star Ballasted Roof Systems
EPDM Timeline
Firestone US9802391B2
Firestone WO2020223028A1
Flex MF_R 50 TDS
GAF EverGuard EPD
GE US4758637A
Genflex II FRM EPDM PDS
GrafGuard
GrafGuard SDS
GrafGuard TDS
Invista US5153164A
Irganox1010_SDS
JM EPDM R 45 Mil TDS
JM EPDM R 60 Mil TDS
JM EPDM R 75 Mil TDS
Milliken Roofing
Milliken US10072419B2
Milliken US20040185734A1
NSF_ANSI 347
Paroli 1996
Plastics Technology Handbook
Production
Rubber Compounding
Rubber Newss 20131211
RuberGard Max TIS
Sarnafil G 410 EPD
Sibelco ATH
SpecialChem_Irganox1010
SPRI EPDM EPD (2016)
Sunpar 107
Sunpar 107 SDS
Sure-Tough TDS (2021)
Thermax N990
Thiele Polyester Additives
Ullmann's Encyclopedia - Plastics, Additives