Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane.
Roofing shingles felt paper.
Roofing felt also known as tar paper provides a protective underlayment over the roof deck and beneath the shingles.
It s created by saturating paper or fiberglass mat with asphalt.
Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide.
For many years felt paper served as the leading type of shingle underlayment.
Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage.
Felt otherwise known as underpayment is required when.
Item 656632 model 0903000.
Felt paper is made from a base of natural wood or synthetic fiberglass materials.
What is felt paper.
Because your roof deck might not lie perfectly straight or flat a layer of roof paper gives an even uniform surface upon which you can install your shingles.
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.
It s a protective second layer that s installed between the roof deck and roof shingles that seals and protects your roof against leaks.
Roofing felt prevents the deck from being exposed to the elements before or while the shingles are being applied.
It improves look and uniformity.
What is roofing felt.
It also offers fire resistance required for home construction.
The purpose of the shingle underlayment is to provide an additional moisture resistant layer to back up your roof shingles.
Of course it is a bit more technical than that but this is the basic idea behind how felt works.
Roofing felt also known as tar paper serves as both an extra layer of protection between the shingles and the plywood and as a temporary moisture barrier until all the shingles are in place.
Felt roofing underlayment is typically available in two types.
No 15 felt and no.