Stevens EV® is a high performance PVC membrane based on DuPont's Elvaloy® HP polymer. Elvaloy® HP is a high molecular weight, solids phase flexibilizer that will not migrate from the sheet and gives Stevens EV its superior physical properties, appearance and color after installation and years of exposure to the elements. Stevens EV® is ideally suited for new and re-roofing applications. Stevens EV® is available in 45-, 50-, 60- and 80-mil (1.14-, 1.27-, 1.52, 2-mm) thicknesses on 76.5-in. wide by 100-foot rolls, and 80-mil thickness (2-mm) on 78-in. wide by 75-foot rolls. Stevens EV® is packaged in standard rolls that are 76.5-in. wide X 100-feet long (1.9m wide x 30m long). Also available are 38.25" (0.97m) wide rolls for perimeter enhancement and 76.5" (1.9m) wide rolls in custom lengths (over 100', 30m) to maximize construction quality and productivity