Deck Defense ® High Performance Roof Underlayment Moisture protection for your home. Deck Defense® High Performance Roof Underlayment is a component of the Owens Corning® Total Protection Roofing System.
Block water damage. When it comes to your new roof, don’t take chances. Ask for the moisture protection that Owens Corning® Deck Defense® High Performance Roof Underlayment can provide. New Deck Defense underlayment’s durable synthetic construction provides an immediate line of defense—so strong it can protect your roof for up to 6 months** of UV exposure. It also acts as a secondary water-shedding barrier for your roof once shingles are installed.
Deck Defense® vs. Organic Felt underlayment — the right choice is clear. Deck Defense Underlayment Conventional #30 Organic Felt 100% Engineered Polyolefin Asphalt/Organic Felt 1,000 sq. ft., 48" wide 200 sq. ft., 36" wide 3.3 lbs.1 20 lbs.
The most important part of the roof? All of them. Product Attributes Warranty Length 30-Year Limited* It takes more than just shingles to protect your home. It takes an integrated system of components and layers designed to withstand the forces of nature outside while controlling temperature and humidity inside.