Description: 45 MIL EPDM Roofing (Ethylene Proplene Dene Monomer) is an inexpensive, efficient, water proof material. The EPDM Membrane is ozone resistant which means it never perishes and remains flexible as a result of never breaking down. This means it has a low maintenance cost and if installed properly requires little to no maintenance whatsoever. EPDM Rubber Membrane has been employed successfully across the world for forty years and is marked as a reliable material for roofing. EPDM roofing is seeing another rise in popularity and public approval as it is an eco friendly material. Water that runs off from EPDM roofing does not carry pollutants. Application: This type of rubber is used mainly for outdoors use, although there are many indoor applications that the rubber roofing sheets can be used for. These oversize rubber roofing sheets can also be used for flooring, covering for structures, roofs on outbuildings and as pond liner rubber.