Elastoflex® SA V membrane is a premium, self-adhered elastomeric base ply roofing product, manufactured using patented Adeso® dual-compound self-adhesive technology, whereby a "true" Styrene-Butadiene-Styrene (SBS) modified asphalt compound is applied on the top layer and an aggressive self-adhesive compound is applied on the bottom layer. It is built with a high performance reinforced fiberglass mat to ensure excellent dimensional stability. Finished with sand or polyolefin film with laylines on the top surface and a split release film on the bottom surface.