15 Vs 30 Lb Roofing Felt

Item 656632 model 0903000.

15 vs 30 lb roofing felt.

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. 15 came perforated for use as a ply sheet for built up roofing. One roofing square and 30 lb felt paper weighed 30 pounds per square. As of publication you can purchase a 72 foot roll of 30 pound roofing felt for around 15.

The difference between 15 lb and 30 lb roofing felt paper. Labor is higher for peel and stick. Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope.

Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights. 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. Organic dry felt is made from 100 post consumer recycled material. Historically roofing felt paper was named for weight.

Organic dry felt is made from 100 post consumer recycled material. 15 lb felt paper weighed 15 pounds per 100 sq. 15 astm 4869 type i is an authentic 15 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. A 66 foot roll of synthetic underlayment will set you back about 86.

Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. No doubt about it. On lower slopes i feel more comfortable with the thicker felt. 15 astm 4869 type i is an authentic 15 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.

On steep roofs the 15 rips easily under foot.