MFM 48267 Roofing Underlayment, 67 ft L, 200 sq-ft Coverage Area, Polymer, White

Ultra HT Wind & Water Seal cents is a 45 mil, self-adhering roofing underlayment composed of a white, non-slip, cross-laminated polymer film, laminated to a high temperature rubberized aggressive asphalt adhesive. Product is engineered for whole roof protection under shingle, tile, shake and metal roofing systems. It bonds to the substrate and seals around fasteners to limit damage caused by water penetration or leaks. It is ideal for secondary water resistance with proper roof ventilation. Product comes with a split release liner for easy installation in valleys, ridges and around chimneys.