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.

This will provide a double layer of underlayment across the entire roof. Iko roof fast base ma is a fiberglass reinforced nailable base with a special film surface designed to be used as one of iko s roof fast low slope roofing components. Product overview the makers at orgill roofing felt have a few solid options for the homeowners out there. Guide to roofing underlayment installation on low slope roofs with asphalt shingles.

This will provide a double layer of underlayment across the entire roof. Asphalt shingles can be used on roofs with a slope of 2 12 to 4 12 if double coverage underlayment is used. Asphalt saturated felt along the eaves and lap succeeding courses by 19 inches as shown in figure 2 3. In any case roofing felt alone is can not make a roof waterproof.

I italicized atop because on very low slope roofs some shingle installation applications specify interlaying a course of felt underlayment perhaps using 30 felt between every shingle course as part of making a shingled roof on a low slope a successful installation. It has just one layer so it goes on fast and can be installed by a homeowner with. And one of them is their 30rf standard roofing felt which has a few distinct features up its sleeve. Start with a 19 inch strip of 15 lb.

In combination with iko roof fast cap sheets it provides waterproofing properties and durability for low slope roofs.