AIR-SHIELD self-adhering air/vapor and liquid moisture barrier is part of a total W. R. MEADOWS system to complete the building envelope. The membrane's controlled thickness is fabricated from cross-laminated polyethylene bonded to specially modified asphalt. This self-adhesive membrane is protected by a special release paper and remains flexible when surface mounted and will adhere to most primed surfaces at minimum temperatures of 40 degrees Fahrenheit (4° C). The self-healing characteristics facilitate recovery if minimal damage is sustained under normal use applications, i.e. when penetrated with self-tapping screws or nails. For more information call 800-342-5976 or visit www.wrmeadows.com.