GAF Materials Corp., Wayne, N.J. offers Weather Watch® Granular Surfaced Leak Barrier. The product creates a 100-percent watertight seal at the most vulnerable areas of a roof (eaves, rakes, in valleys, around chimneys). A special adhesive eliminates waste as it allows for one-time repositioning and then aggressively adheres over time. The membrane helps resist wrinkling and buckling of shingles for a better look. It also benefits from the same warranty length as the asphalt shingles it is applied under, up to 30 years.

StormGuard® Film-Surfaced Leak Barrier provides superior performance for both asphalt shingle roofs and metal roofs. Used at the most vulnerable areas of a roof (eaves, rakes, in valleys, around chimneys), it creates a 100 percent watertight seal. The unique film surface pattern helps improve footing, even in hot weather, for safer installation. It also benefits from the same warranty length as the asphalt shingles it is applied under, up to 30 years. For metal roofing applications, StormGuard®HT Leak Barrier is designed to withstand high metal roof temperatures, and can even be left exposed for up to 60 days, if required!