WeatherBond RBR Reinforced EPDM is durable enough for rooftops that may experience high maintenance traffic or abuse and is often specified for schools, hospitals and manufacturing facilities. It consists of a strong polyester reinforcing scrim sandwiched between two plies of WeatherBond EPDM membrane. The polyester reinforcement more than doubles the puncture resistance compared to non-reinforced membranes. For rooftops where long-term puncture resistance is essential, the dual-ply construction of the reinforced membrane is the ideal solution as it is resistant to cuts, tears and scuffs.