Roofing Felt For Low Pitch Roofs

In low slope roofs which include 2 12 up to 4 12 felt courses should overlap a minimum of 19 inches.

Roofing felt for low pitch roofs.

Asphalt shingles can be used on roofs with a slope of 2 12 to 4 12 if double coverage underlayment is used. And one of them is their 30rf standard roofing felt which has a few distinct features up its sleeve. A typical roof has three layers a felt layer and two layers of overlapping shingles. It has just one layer so it goes on fast and can be installed by a homeowner with.

Start with a 19 inch strip of 15 lb. This will provide a double layer of underlayment across the entire roof. This will provide a double layer of underlayment across the entire roof. In combination with iko roof fast cap sheets it provides waterproofing properties and durability for low slope roofs.

In any case roofing felt alone is can not make a roof waterproof. Guide to roofing underlayment installation on low slope roofs with asphalt shingles. Asphalt saturated felt along the eaves and lap succeeding courses by 19 inches as shown in figure 2 3. Roll roofing is different.

For starters it s a bit on the thicker side.