DURAFLEX™ PREMIUM SBS MODIFIED BITUMEN MEMBRANES are manufactured from exclusive formulas using the highest quality materials available in the market today and are one of the principle waterproofing components in U.S. Ply roof systems. U.S. Ply has engineered and developed DuraFlex™ SBS (Styrene-Butadiene-Styrene) hot asphalt or cold adhesive applied modified bitumen membrane to meet or exceed the industry standards for high performance membranes.

U.S. Ply begins with prime grades of asphalt which are then modified with elastomeric (SBS) polymers. The result is a modified bitumen compound that demonstrates revolutionary waterproofing characteristics, extreme heat resistance, low temperature flexibility and excellent elongation properties. U.S. Ply then strategically adds reinforcements of fiberglass, polyester or composite fibers in the modified bitumen compound to incorporate additional performance characteristics into the membrane. 

To compliment the DuraFlex™ modified bitumen membranes, U.S. Ply uses DuraFlex™ Premium SBS Modified Bitumen Adhesive to adhere the membrane to selected substrates and base sheets.