Products / HPR Glasfelt / HPR Premium Glasfelt

Heavy-duty asphalt-coated fiberglass mat ply sheets for high-performance built-up roofs and membrane waterproofing, made of fiberglass monofilaments in a melamine binder reinforced with fiberglass strands and dusted with fine sand. HPR Glasfelt (20 mil nominal) meets or exceeds ASTM D 2178 Type IV and HPR Premium Glasfelt (25 mil nominal) meets or exceeds ASTM D 2178 Type VI; both come in 3 ft by 180 ft rolls covering 500 sq. ft.