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.

It is also guaranteed to last the lifetime of your roof prevent condensation and allow air to circulate. Ice and waterproofing membranes that are self sealing at the joints and at nail penetrations are almost perfect vapor retarders. 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. Breathable roof membranes are generally installed on the cold side of insulation in the roof structure ie the side closest to the external area.

Unlike typical synthetic underlayments deck armor helps reduce inside moisture from becoming trapped within your roofing system. Roofing felts are marginally breathable and certainly suffer from condensation through the winter months. Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck. At least 600 greater tear strength than standard 30 asphalt felt.

Breathable roofing felt is completely waterproof.