A 66 foot roll of synthetic underlayment will set you back about 86.
15 lb or 30 lb felt for roof.
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.
15 lb felt paper weighed 15 pounds per 100 sq.
Organic dry felt is made from 100 post consumer recycled material.
Of course it is a bit more technical than that but this is the basic idea behind how felt works.
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.
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.
Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope.
Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide.
Labor is higher for peel and stick.
As of publication you can purchase a 72 foot roll of 30 pound roofing felt for around 15.
Felt paper is commonly produced with a certain number of recycled products and coated with asphalt.
What is roofing felt.
Organic dry felt is made from 100 post consumer recycled material.
Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane.
Historically roofing felt paper was named for weight.
15 asphalt felt 3 x 144 roofing underlayment 432 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.
The difference between 15 lb and 30 lb roofing felt paper.
The best weight for roofing felt is the 30 pound product because it provides thicker and.
Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.