48" x 250, Rex Synthetic Felt, A High Strength Woven Synthetic Roof Underlayment, Features Include Class A Fire Rating, Can Be Exposed For Up To 6 Months, Fasten With 1" Diameter Plastic Cap Nails Or 3/8" Diameter Head Electro Plated Galvanize Smooth Shank Roofing Nails, 50 Year Warranty, Roll.
