TRI-BUILT 36" x 72' #30 ASTM D226 Organic Felt
TRI-BUILT® #15 & #30 ASTM D226 Organic Felt are designed and manufactured with our exclusive, heavy weight reinforcements that greatly increase tensile strength and prevent the tearing of felts during installation. TRI-BUILT® products are made from a select combination of virgin and recycled wood pulp and are produced using a unique and specialized process. TRI-BUILT® #15 & #30 ASTM D226 Organic Felt is designed and manufactured to allow the transmission of air vapor while keeping water out. This creates a truly breathable membrane, which helps prevent the rotting of wood decks and helps roofing materials last longer.