Owens Corning Deck Defense® High-Performance Synthetic Roofing Underlayment 4' x 250' (1,000 sq. ft.)

Owens Corning® Deck Defense® high-performance roof underlayment offers flexible, innovative synthetic construction that allows it to lay flat and stay flat even when exposed to moisture. The preprinted nailing pattern and overlap lines speed installation and allow for faster shingle application.