Products / GAF RUBEROID HW Smooth Membrane

GAF's SBS-modified bitumen commercial roofing membrane with a core of strong, resilient non-woven polyester mat coated with flexible, polymer-modified asphalt and a smooth surface; heat-weld installations with a smooth surface must be protected with additional surfacing. Installed roof designs weigh less than two pounds per square foot. GAF states system guarantees are available for up to 20 years, with terms dependent on the specific system construction.