Although rubber membrane roofing is used primarily on commercial and industrial projects, it is becoming a popular roof covering on low slope porches and dormers. The hottest item in the single-ply market is ethylene propylene diene monomer (EPDM). Long term dependability, weathearbility, and durability are among the primary factors contributing to the rapidly increasing demand for EPDM roofs.

Single-Ply roofing systems are composed of insulation, a single ply membrane, flashings, and adhesive. TPO, EPDM, and PVC the three most common types of single-ply membrane systems. Since they consist only of a single layer of roofing over insulation, these popular systems are lightweight, making them an ideal choice for retrofits.