Single ply roofing is composed of a single layer thermoplastic or thermo-set membrane which typically has heat welded seams. R&B Roofing has installed over 300 million square feet of single ply membranes. Systems installed include EPDM, PVC, TPO, EP, and other hybrid systems including highly reflective white membranes. R&B is licensed for both installation and service by major quality roof membrane manufacturers.