Low Pitch Roof Felt

Asphalt saturated felt along the eaves and lap succeeding courses by 19 inches as shown in figure 2 3.

Low pitch roof felt.

Asphalt shingles can be used on roofs with a slope of 2 12 to 4 12 if double coverage underlayment is used. Gaf liberty 3 ft. In my view two layers of felt atop roof sheathing would not significantly improve the leak resistance of an asphalt shingle low sloped roof. It s constructed of a durable reinforcing mat of non woven glass fibers that have been coated and permeated to a thickness of approximately 2 0 mm.

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. Start with a 19 inch strip of 15 lb. Guide to roofing underlayment installation on low slope roofs with asphalt shingles. A low slope roof design typically has a pitch of between 2 12 and 4 12.

About roofing supplies supply klober permo extreme rs sk2 low pitch roofing membrane which is a unique vapour permeable underlay felt designed specifically for use on low pitch roofs such as mono pitch extensions with pitches as low as 12 5 degrees. Ft sbs self adhering cap sheet roll for low slope roofing in slate model 3730750 101 02 roll 101 02 roll free delivery. Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering. Iko roof fast 95 base is a self adhesive product that can easily be cold applied on low slope roofs.