Is Roofing Felt Breathable

Roofing felts are marginally breathable and certainly suffer from condensation through the winter months.

Is roofing felt breathable. At least 600 greater tear strength than standard 30 asphalt felt. Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe. Engineered to breathe for at least 100 years roof decks have been protected by roofing felt placed beneath shingles shakes and other types of roofing. Special slip resistant surface provides enhanced walkability even on steeper pitched roofs.

Breathable roof membranes are generally installed on the cold side of insulation in the roof structure ie the side closest to the external area. The best roofing underlayment for your project breathable roofing felts must be durable breathable strong flexible and waterproof. Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck. Breathable roofing felt also known as breathable roof membranes can be used within both walls and roof structures particularly when the external roof or wall materials are not completely watertight.

Unlike typical synthetic underlayments deck armor helps reduce inside moisture from becoming trapped within your roofing system.