TigerPaw Roof Deck Protection Underlayment is a premium-quality roof deck protection that protects your home by providing a critical extra layer of protection between shingles and roof deck. It helps in preventing wind-driven rain (or water from other sources) from infiltrating under shingles and causing damage to your roof structure, or to the inside of home. Conventional organic felts can absorb moisture, causing buckling and wrinkling that can impact the look of your roof. Tiger Paw™ Premium Roof Deck Protection combines strength and long term durability to help protect your home against wind driven rain.