Flat roofs come in many different materials ... and strong winds. Rubber roofing membranes, which are often made of ethylene propylene diene terpolymer, also known as EPDM, cost between $4 ...

The most common material for residential flat roofs is modified bitumen ... additives — not a rubber roof. A true “rubber roof” would be an EPDM roof. Always be sure to ask to clarify ...