Firestone’s EPDM synthetic rubber membrane has been growing in popularity for flat roofing for two decades and is proving to be the roofing industry’s most innovative, sustainable solution to cover flat roof installations. What is EPDM? EPDM is the industry-accepted abbreviated term for Ethylene-Propylene-Diene-Terpolymer. It is a flexible synthetic rubber roofing membrane, manufactured in the [...]