15 Lb Or 30 Lb Felt For Roof

Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.

15 lb or 30 lb felt for roof.

The difference between 15 lb and 30 lb roofing felt paper. Of course it is a bit more technical than that but this is the basic idea behind how felt works. Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane. Organic dry felt is made from 100 post consumer recycled material.

15 lb felt paper weighed 15 pounds per 100 sq. What is roofing 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. The best weight for roofing felt is the 30 pound product because it provides thicker and.

15 came perforated for use as a ply sheet for built up roofing. Labor is higher for peel and stick. Historically roofing felt paper was named for weight. 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.

As of publication you can purchase a 72 foot roll of 30 pound roofing felt for around 15. Organic dry felt is made from 100 post consumer recycled material. One roofing square and 30 lb felt paper weighed 30 pounds per square. 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 asphalt felt 3 x 144 roofing underlayment 432 sq. 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. Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide.

Felt paper is commonly produced with a certain number of recycled products and coated with asphalt.