Henry HERF200916 Roofing Underlayment, 65 ft L, 3 ft W, Polyethylene, Blue

A SBS modified bitumen high temperature roofing underlayment reinforced with a textured skid-resistant polyethylene film specifically designed to be self-adhered on sloped roof surfaces as secondary seal under shingles or tile, self-seals when penetrated by mechanical fasteners or roofing nails prevents lateral moisture migration; provides premium anti-resistant textured blue film surface for applicator safety provides split release backing for fast application meets ASTM D1970 standard and is ICC listed.