Rubber membrane roofs are often used to seal flat roofs over garages and porches.
Although rubber has been around for a long time, rubber roofing is fairly new. That’s because it’s taken a great deal of chemistry research to develop a thin rubber membrane with the durability and waterproof qualities required of roofing material. Rubber roofing is sometimes referred to as EPDM roofing. EPDM is an abbreviation for ethylene propylene diene monomer, the highly engineered compound used to manufacture most types of rubber roofing. Rubber roofing is used primarily on flat or low-slope roofs in both commercial and residential buildings.
A “membrane roof” usually refers to a rubber or EPDM roof that is installed in a flat roof or a low-slope application. Many commercial buildings have membrane roofs; few houses do.