The EPDM (ethylene propylene diene terpolymer) single-ply rubber roofing membrane has been an appealing choice of the low-slope commercial roofing industry for over 40 years.EPDM rubber rolls are available for a range of applications in the industrial and residential markets. This type of EPDM rubber has excellent stretching capabilities while remaining strong enough to be elastic. With an average elongation of 300% and an average of 1,000 PSI tensile strength, EPDM rubber rolls will handle most tough industrial environments and moderate to heavy alkaline and chemical resistive situations. EPDM rubber rolls are available in 50 to 60 durometer and can be ordered in other durometers by special request.