15 Vs 30 Lb Roof Felt

One roofing square and 30 lb felt paper weighed 30 pounds per square.

15 vs 30 lb roof felt.

Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. The main advantage of using felt roofing underlayment is cost. Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights. 30 felt type construction helps provide an extra layer of protection between your shingles and your roof deck not included.

The difference between 15 lb and 30 lb roofing felt paper. In my opinion felt paper is a vapor barrier plus keeps the oils in the shingles from leaching out and into the wood substrate i e. 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. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.

Item 656632 model 0903000. 15 came perforated for use as a ply sheet for built up roofing. Historically roofing felt paper was named for weight. 30 pound roofing felt it is not paper it s made from either fiberglass or polyester that s been bound together with asphalt costs the same per roll as 15 pound felt but there are 216 square.

No 15 felt and no. This 30 felt roof deck protection provides a layer of protection between your shingles and roof deck. Felt roofing underlayment is typically available in two types. Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope.

A 66 foot roll of synthetic underlayment will set you back about 86. The felt helps prevent wind driven rain from causing damage to your roof structure and home. 15 lb felt paper weighed 15 pounds per 100 sq. Labor is higher for peel and stick.

The best weight for roofing felt is the 30 pound product because it provides thicker and. 30 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events.