Roofing Felt Definition

Felt paper is applied across the entire roof deck.

Roofing felt definition.

A material designed to restrict the passage of water vapor through a roof system or wall. For decades roofers have fitted a layer of felt over a roof s sheathing or roof deck before installing shingles. As a licensed contractor and president of joel s roofing rain gutter co. Commonly referred to as felt paper or tar paper common roofing felt is made of varying blends of cellulose natural plant fibers polyester bitumen or asphalt.

Basemat the flexible base layer is saturated with asphalt for water resistance. Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide. Roofing felt in british english. Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane.

Used for decades as waterproof coverings in residential and commercial roofs these bitumen compositional membranes incorporate two layers. Of course it is a bit more technical than that but this is the basic idea behind how felt works. Modified bitumen roofing was designed for use on buildings that have a low slope or flat roof. A type of tar paper made from glass fibre or polyester fleece impregnated with bituminous material produced in roll form and used in roof construction.

Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. Roofing felt offers an additional layer of protection against the elements. Advantages there are a wide range of methods available for installing modified bitumen roofing from using a hot torch to using a sealant backed peel and stick rolls. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.