3M Air and Vapor Barrier 3015 is an innovative, proprietary, translucent air and vapor barrier that uses non-asphaltic-based adhesives, which permit an extended application temperature range between 0°F to 150°F. It does not require primer for most substrates and can withstand up to 6 months of direct UV exposure. The 10-mil engineered sheet membrane self-seals against nail fasteners and penetrations. It also conforms to contours for continuous bonded contact. Available in widths up to 4 feet wide, the air and vapor barrier can be specified locally and delivered globally.