Check the sheathing for any nails or screws that may be.
Low pitch roofing felt.
On roofs with a slope of 4 12 or greater use a single layer of 15 lb.
Iko roof fast 95 base is a self adhesive product that can easily be cold applied on low slope roofs.
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.
Vertical joints should lap a minimum of 4 inches and be offset by at least 6 feet in successive rows see figure 2 2.
A low pitch roof on the other hand absolutely must be waterproofed.
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Asphalt saturated felt starting at the eaves and lapping upper courses over lower by a minimum of 2 inches.
How to install roll roofing on low slope roofs.
Attach drip edge along the edge of the roof with roofing cement.
A low slope roof design typically has a pitch of between 2 12 and 4 12.
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.
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.
Asphalt shingles are as their name suggests shingles made from asphalt and layered on your roof over felt a synthetic underlayment or thicker ice and water shield type membrane.
In any case roofing felt alone is can not make a roof waterproof.
Shingles can be a controversial option for a low slope roof.