Deck-Armor 400 sq. ft. Premium Breathable Synthetic Roofing Underlayment Roll

GAF Deck-Armor Premium Breathable Underlayment provides a critical layer of protection under your asphalt shingles against wind-driven rain and other sources of moisture. Its unique breathable technology allows inside moisture to escape the roof system, helping to prevent premature roof system deterioration. Made of tough synthetic materials, it resists tearing and helps ensure long-lasting protection. Each roll of Deck-Armor contains 400 sq. ft., excluding laps Breathable technology helps reduce inside moisture from becoming trapped in the roof system which can lead to structural decay, mold or mildew Polypropylene synthetic construction will not rot or become brittle over time (like conventional asphalt felts) Spunbond top surface helps ensure excellent traction and walkability during installation Resists wrinkling or buckling to help avoid ugly telegraphing through the finished roof 48" x 100' roll size - each roll contains 400 square feet - excluding laps Can withstand UV degradation for up to 180 days, if necessary For use under asphalt shingles and other roof systems such as metal, slate or wood Part of the GAF Lifetime Roofing System and eligible for Lifetime ltd. warranty when installed on Lifetime Shingle roofs (See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions This product is water-resistant, it is NOT waterproof. It is intended as a secondary layer of water-shedding protection underneath the primary roof covering, such as asphalt shingles. Do NOT USE as a temporary roof or "dry-in" solution to protect property or possessions.