Ethylene Propylene Diene Terpolymer Material (E.P.D.M.) is perhaps the most popular commercial roofing product for low slope application on residential and commercial building used in the market for over 40 years. It is a quite simplistic roofing system - a single ply rubber sheet that adheres with adhesive. The Advantages are Typically EPDM can be applied to almost any scale project in commercial flat roofing either over an existing roof or as the primary roof. EPDM has proven resistance to hail, wind resistance in excess of 120MPH and great heat/fire ratings. Old EPDM roofs requiring replacement can often be coated to give the roof a little more life before you need a whole new roof.
Environmental Advantages - Makers of EPDM roofing membranes preach it's environmental responsibility. Rubber is somewhat environmentally friendly with low initially energy production cost and a long life cycle before neccesary replacement. When you do need to replace the EPDM can be recycled - melted down and reused or cut into strips.