GAF’s WeatherWatch® Mineral-Surfaced Leak Barrier is a fully-adhered roof underlayment with an adhesive back, used to prevent damage caused by ice dams and wind-driven rain.

The eaves, rakes, valleys, and chimneys are the most leak-prone areas of a roof. GAF’s WeatherWatch® Mineral-Surfaced Leak Barrier is a self-sealing material, making it an exceptional leak guard.

In addition to protecting against costly damage to the roof itself, The WeatherWatch® barrier may prevent expensive damage to the interior of your home, like wall and ceiling stains, which often result from leaks.