Roofing Felt Grades

Rose roofing standard grade shed felt review.

Roofing felt grades.

Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. Commercial standard grade sae number nta number. 15 tarah astm 4869 type i is an 15 tarah astm 4869 type i is an authentic asphalt saturated organic felt underlayment is used as a breathable secondary weather resistant barrier when applied over the roof deck prior to the installation of the primary roofing product. It comes with the nails included and is designed for easy installation.

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. Organic dry felt is made from 100 post consumer recycled material. Most standard premium shed felt is designed with a life expectancy of 5 years in mind. The two main methods of its application are pour roll and torch on.

Commercial standard grade sae number nta number. The rose roofing standard grade shed felt is made in the uk designed specifically for uk weather in other words a lot of rain. Item 656632 model 0903000. Bituminous waterproofing systems are designed to protect residential and commercial buildings bitumen asphalt or coal tar pitch is a mixed substance made up of organic liquids that are highly sticky viscous and waterproof.

With great waterproofing this will protect your shed roof from water for up to 5 years. As with all building supplies there are different grades available buyer beware. Grease and oil retention protective lining and isolation for freight cars trucks dunnage uses similar to 9r2 and 9r3 where less durability and lower grade felt is acceptable. This is then applied to a fibrous membrane which is typically made of fibreglass polyester or hessian.

Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights. An extra coating of sand or fine gravel can be added on top to improve the aesthetic appeal. These systems are sometimes used to construct roofs in the form of roofing felt or roll roofing products.