The Polyglass Elastoflex SBS Self Adhered Granulated Cap Sheet is a premium Styrene-Butadiene-Styrene (SBS) granulated cap sheet used in low slope roofing applications. Elastoflex roof cap sheets are constructed with a tough non-woven polyester reinforcement that provides flexibility, dimensional stability, as well as excellent tear and puncture resistance. The top surface of Elastoflex Granulated Cap Sheet has a granular finish that comes with multiple color options. The premium, granule surfaced, fire rated, self-adhered, polyester reinforced SBS modified bitumen roofing product is manufactured using dual-compound self-adhesive technology. The cap sheet features patented FastLap for granule free roll ends, as well as SealLap, a factory applied adhesive treatment at the membrane overlap. Available in 9 separate color options to match your roofing shingles, the Polyglass Elastoflex Cap Sheets covers 1 square or 100 square feet per roll.