Elastoflex SA P FR membranes are finished with granules on the top surface and features patented FastLap as well as SealLap, a factory applied adhesive treatment at the membrane overlap. Each of these patented features provide for greater ease of application as well as improved product performance. Elastoflex SA P FR membranes are premium, fire-rated, self-adhered elastomeric roofing products, manufactured using patented Adeso Dual-Compound Self Adhesive technology, whereby a "true" SBS polymer modified asphalt compound is applied on the top layer and an aggressive self-adhesive compound is applied on the bottom layer.