Is Roofing Felt Breathable

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.

Is roofing felt breathable.

Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck. The best roofing underlayment for your project breathable roofing felts must be durable breathable strong flexible and waterproof. 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. Roofing felts are marginally breathable and certainly suffer from condensation through the winter months.

Ice and waterproofing membranes that are self sealing at the joints and at nail penetrations are almost perfect vapor retarders. 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. Breathable roof membranes are generally installed on the cold side of insulation in the roof structure ie the side closest to the external area. Special slip resistant surface provides enhanced walkability even on steeper pitched roofs.

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