KEMPEROL SBS Cap Sheet is a high quality granule surfaced Styrene Butadiene Styrene (SBS) modified bitumen asphalt roofing membrane. The membrane is reinforced with a polyester reinforcement providing high tensile strength and puncture resistance. The SBS asphalts and product composition offer long-term dimensional stability and flexibility. Standard granule color is white. Cap Sheet is available with a sand backed finish for adhered applications or a burnoff polyethylene film for heat welded applications. KEMPEROL SBS Cap Sheet membrane is heat-welded for new roofing and recover applications. Intended as the top layer in a multi-ply assembly, or beneath the KEMPEROL cold liquid-applied, fully reinforced membrane system. The membrane is free of granules along the selvage edge.