15 Lb Roofing Felt Mm

Asphalt saturated felt along the eaves.

15 lb roofing felt mm.

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 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. Width and a 144 ft.

Unrolled length that combine to provide over 430 sq. The best weight for roofing felt is the 30 pound product because it provides thicker and. Felt has a 36 in. This gardner asphalt 15 432 sq.

No 15 felt and no. Ft at menards send cancel mail in rebate is in the form of merchandise credit check valid in store only. 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 lb felt paper weighed 15 pounds per 100 sq. 15 asphalt felt 3 x 144 roofing underlayment 432 sq. Roofing felt also called roofing felt paper is underlayed on roofs before shingles are added. Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope.

The numbers ihad a correlation to the weight not the thickness. Start with a 19 inch strip of 15 lb. Points to the first course of 15 roofing felt on this roof. Of coverage for residential and commercial roofing projects.

Felt roofing underlayment is typically available in two types. Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. Its main purpose is to prevent moisture from leaking into a roof. Item 656632 model 0903000.

Organic dry felt is made from 100 post consumer recycled material. The difference between 15 lb and 30 lb roofing felt paper. The standard types of felt are 15 and the more waterproof 30. 36 inch wide 914 mm strips of underlayment felt shall be applied overlapping successive sheets 19 inches 483 mm and fastened sufficiently in place.