GAF WeatherWatch Mineral-Surfaced Peel and Stick Roof Leak Barrier Roll (200 sq. ft)

Protect your roof where it matters most with WeatherWatch® Mineral-Surfaced Leak Barrier, now available at A+ Roofing Supply. As a vital component of the GAF Lifetime Roofing System, this high-performance underlayment provides powerful protection against water intrusion in the most leak-prone areas of your roof—including eaves, rakes, valleys, chimneys, and skylights.

Engineered for durability and performance, WeatherWatch® is fiberglass-reinforced to resist buckling and wrinkling for a clean, professional roof finish. It’s designed to self-seal around nails, helping to block water entry—even in high-risk areas where wind-driven rain and ice dams pose serious threats.

Its peel-and-stick application with split-back release film makes it quick and easy to install, while the mineral-surfaced top layer enhances traction and protects under asphalt shingles. Available in a generous 200 sq. ft. roll, it’s an excellent solution for both residential reroofing and new construction projects.

When used on Lifetime Shingle roofs, WeatherWatch® is eligible for GAF’s Lifetime Limited Warranty and contributes to enhanced warranty coverage options.

Key Features:

• Provides a secondary waterproofing layer at vulnerable roof zones

• Self-adhering design with split-back release film for easy installation

• Self-seals around nails to help prevent leaks

• Fiberglass reinforcement for stability and wrinkle resistance

• Mineral-surfaced for added durability and walkability

• Designed for use under asphalt shingles

• Part of the GAF Lifetime Roofing System

• Eligible for Lifetime Limited Warranty when installed with qualifying products

Safeguard your roof from water damage, ice dams, and costly interior repairs with WeatherWatch® Leak Barrier Rolls—trusted protection from A+ Roofing Supply.