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Credit: Noah Kalina

Deck Defense is a high-performance roof underlayment from Owens Corning. Engineered for asphalt, tile, and metal roof assemblies, the material comes in 4'-wide rolls. Each roll has 250' of underlayment. Suitable for use in residential, multifamily, and some light commercial applications, the durable synthetic construction resists tearing and acts as a secondary water-shedding barrier. • owenscorning.com