Low Pitch Roof Felt

Guide to roofing underlayment installation on low slope roofs with asphalt shingles.

Low pitch roof felt.

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. Ft sbs self adhering cap sheet roll for low slope roofing in slate model 3730750 101 02 roll 101 02 roll free delivery. Set your store to see local availability add to cart. Asphalt shingles can be used on roofs with a slope of 2 12 to 4 12 if double coverage underlayment is used.

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. A low slope roof design typically has a pitch of between 2 12 and 4 12. Select 2 to 4 items to compare. Asphalt saturated felt along the eaves and lap succeeding courses by 19 inches as shown in figure 2 3.

We supply roofing materials nationwide through our four branches online. 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 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. In my view two layers of felt atop roof sheathing would not significantly improve the leak resistance of an asphalt shingle low sloped roof.