Rating System For Felt Roofing Paper

When you compare the typar to traditional 30 felt roofing paper you can quickly see the advantages to using it.

Rating system for felt roofing paper.

What is roofing felt. The typar is 10 times stronger and 10 times lighter than 30 felt. Therefore it s tear resistant and very easy to carry up onto the roof top. Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide.

Felt roof deck protection. The best weight for roofing felt is the 30 pound product because it provides thicker and. This felt will help prevent damage to your roof from wind driven rain and water from other sources. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.

Asphalt saturated material for excellent waterproofing. Astm d226 d226m standard 09. Roofing felt may be necessary for use with your shingles to meet a class a fire rating when shingles are evaluated for their fire ratings it is done on a small test deck with the roofing felt underlayment in place without this underlayment the shingles alone may not meet the class a fire requirements. When a roof system is evaluated for a fire rating the choice of roof underlayment is an important component for the entire roof system achieving a particular target rating.

Be sure to select the underlayment approved and compatible with the overlying roofing materials and therefore comply with building codes. Felt paper also referred to as tar paper was the standard underlayment material in roofing for decades. Add an extra layer of protection between your shingles and roof deck with this 30 216 sq. Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane.

Synthetic underlayment started gaining popularity in the last decade. It was easy to use durable and even had alignment lines to help with the shingle installation. The american society for testing materials astm standards that apply to felt paper are. Item 656632 model 0903000.

Type i 15 or 15 lb. 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. Type ii 30 or 30 lb. Of course it is a bit more technical than that but this is the basic idea behind how felt works.

Lighter than felt synthetic underlayment is just as easy to work with.