SENTINEL® P150 HFB is a high-performance, polyester reinforced, thermoplastic polyvinyl chloride (PVC) roof membrane, specially designed to provide unmatched flexibility and long-term performance. SENTINEL® membranes provide the proven fire and chemical resistance of PVC along with superior weldability, making it easy to conform to complex geometries. SENTINEL® P150 HFB incorporates a heavy fleece-backed underside and is available in an ENERGY STAR® approved white as well as a variety of colors, including gray and tan.