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.

TRI-BUILT® provides quality residential and commercial building materials that deliver professional results. By focusing on the professional contractor, TRI-BUILT® has become a recognized and trusted leader in the construction industry. From roofing and siding materials, windows, coatings, and more, TRI-BUILT® is a name you can trust at a competitive price.