30 Lb Roofing Felt Vs 15 Roofing Felt

One roofing square and 30 lb felt paper weighed 30 pounds per square.

30 lb roofing felt vs 15 roofing felt.

Lumberyards often call these items 15 lb. This offers your home protection until you can. The difference between 15 lb and 30 lb roofing felt paper. 15 came perforated for use as a ply sheet for built up roofing.

Does anyone have any language to give to an adjuster to get 30 lb felt paid for vs 15 lb felt. 30 is heavier so on steeper slopes you don t slip and tear it as easily. 15 lb felt paper weighed 15 pounds per 100 sq. Generally speaking 30 pound felt is less likely to experience tears than 15 pound felt.

Felt a holdover from the old days when that what they actually weighed. System november 19 2014 9 09pm 7. Of course it is a bit more technical than that but this is the basic idea behind how felt works. Slopes greater than 6 12 i recommend one layer of 30.

Per square 100 sq. 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. Felt which weighs 15 to 20 lbs. Besides that benefit if shingles come loose during a storm and tear off the 30 pound roofing felt stays intact whereas 15 pound tar paper may not.

They say it s an upgrade. Additionally if a shingle comes off in a storm 30 pound felt is much less likely to tear along with the shingle keeping your roof protected. Ft or unrated 30 lb. The steeper the slope the easier it is to slip and tear the felt.

This is beneficial for installation roof protection and all of its other functions. Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. 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. Historically roofing felt paper was named for weight.

Most of the felt paper stocked by lumberyards today is either unrated 15 felt which typically weight around 7 or 8 lbs. What is roofing felt. It is a steep roof 8 12 high 2 story roof.