GAF 0912000MV 1 1/2 Square Foot Leak Barrier

Key Features

• Fiberglass reinforcement helps resist wrinkling and buckling lays flatter under shingles
• Special adhesive allows for one-time repositioning, but aggressively adheres over time
• Self-seals around nails or metal roofing fasteners
• Split-back release film helps to speed installation
• Versatile high-temperature compound is perfect for use under asphalt shingles
• 2 square roll sizes

Shingle underlayment for roof"eaveguard" roll size 3 feet x 50 feet. For installation under new shingles to prevent leaks from ice build-up and wind-driven rain. Also for use under shakes or metal roofing. Asphalt composition fortified with rubber (SBS). Flexible and elastic at low temperatures. Top surface coated with san d to provide a safe, non-slip working area. Split-back release film, self-adhering, easy to apply, easy to cut to size. Self-sealing around nails. Will not rot or decompose. Meets ASTM D1970; U.L. Class A and C fire rating.