Grip-Rite® weather resistive barriers are made of a durable high density polyethylene woven substrate that possesses very high tensile strength that resists tearing from high wind exposure. Superior UV treatment allows exposure for over six months without deterioration. Grip-Rite® House Wrap and Commercial Grade weather resistive barriers are coated on both sides with LDPE. Grip-Rite® LWE is coated on one side. All Grip-Rite® WRBs are micro-perforated to allow breathing