15 Lb Or 30 Lb Felt For Roof

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15 lb or 30 lb felt for roof. 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 lb felt paper weighed 15 pounds per 100 sq. What is roofing felt. Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide.

Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope. 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. As of publication you can purchase a 72 foot roll of 30 pound roofing felt for around 15. Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.

Labor is higher for peel and stick. Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane. The best weight for roofing felt is the 30 pound product because it provides thicker and. 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. A 66 foot roll of synthetic underlayment will set you back about 86. Organic dry felt is made from 100 post consumer recycled material. 15 came perforated for use as a ply sheet for built up roofing.

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. 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. 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.