HomeGuard Housewrap is a woven, perforated, high-quality polyolefin housewrap. Its micro-perforations allow moisture vapor to pass through yet protects the exterior wall system as a water resistant barrier. As a preventative for air infiltration, HomeGuard housewrap reduces air infiltration, which increases the efficiency of a building?s insulation system and saves on heating and cooling costs. HomeGuard housewrap is durable, able to withstand harsh jobsite conditions and it is UV resistant for up to 6 months.