15 Lb Roofing Felt Thickness

Felt has a 36 in.

15 lb roofing felt thickness. 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 main advantage of using felt roofing underlayment is cost. The standard types of felt are 15 and the more waterproof 30. 15 pounds per hundred square feet and 30 pounds per hundred square feet.

Width and a 144 ft. 15 lb felt paper weighed 15 pounds per 100 sq. 15 felt type construction helps provide an extra layer of protection between your shingles and your roof deck not included heavy duty design lays flat to help minimize wrinkling asphalt saturation to help improve waterproofing ability to help prevent wind driven rain and water from other sources from infiltrating under your shingles and. The difference between 15 lb and 30 lb roofing felt paper.

This gardner asphalt 15 432 sq. For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights. Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. The best weight for roofing felt is the 30 pound product because it provides thicker and.

Felt roofing underlayment is typically available in two types. Its main purpose is to prevent moisture from leaking into a roof. Historically roofing felt paper was named for weight. 30 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events.

Of coverage for residential and commercial roofing projects. 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. One roofing square and 30 lb felt paper weighed 30 pounds per square. Roofing felt also called roofing felt paper is underlayed on roofs before shingles are added.

No 15 felt and no. Unrolled length that combine to provide over 430 sq. 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. The numbers ihad a correlation to the weight not the thickness.