Roofing Felt 15 Refers To

The main advantage of using felt roofing underlayment is cost.

Roofing felt 15 refers to.

No 15 felt and no. For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights. 15 lb refers to the thickness of the paper. Ideal for an apex flat or pent roof shed felt and roofing membrane are durable and perfect for a newly built structure or to re cover existing roofing material.

Of coverage for residential and commercial roofing projects. Felt roofing underlayment is typically available in two types. Description documents 15 asphalt felt roofing underlayment provides an extra layer of protection between your shingles and your roof deck. In the old days common felt was 15 lb felt and 30 lb felt and a roll of the first held 4 squares and weighed 60 lbs while a roll of the second held 2 squares and weighed 60 lbs.

Roofing felt s thickness is actually measured in pounds per square with one square equaling 100 feet of roofing material. 15 pounds per hundred square feet and 30 pounds per hundred square feet. How much does a roll of roof felt paper weigh. 15 came perforated for use as a ply sheet for built up roofing use and non perforated.

Felt has a 36 in. This underlayment features excellent asphalt saturation for effective waterproofing. About 35 lbs for a roll of 15 lb felt that covers 400 sq ft. This product consists of a resilient high strength cellulose fibre mat that has been saturated with premium waterproofing bitumen.

Available in 30 lb. Width and a 144 ft. The most commonly used felts are 15 and 30 with weights of 8 and 20 pounds per 100 square feet respectively. Unrolled length that combine to provide over 430 sq.

30 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events. Roofing felt is essential to ensure your outbuilding is ready for all weathers by providing a waterproof cover to the building s roof. 15 felt type construction helps provide an extra layer of protection between your shingles and your roof deck not included. 15 perforated asphalt saturated felt imperial meets or exceeds astm d226 type i and csa a123 3 type 1 compositional and performance characteristics.

30 was used as a base sheet for built up roofing and underlayment under slate tile and shingles. Used as a vapour retarder on certain substrates or as a membrane for multi ply built up roofing systems iko s no. Product overview this 15 felt roof deck protection features quality asphalt saturation for great waterproofing to add an extra layer of protection between your shingles and your roof deck. This gardner asphalt 15 432 sq.

The 15 pound was for lighter weight projects while the 30 offered more heavy duty protection.