You need to gently pry up the overlapping cap shingle next to the cap you want to replace.
Nails at top of roof shingles show.
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Hammer one nail about 2 inches from each end of a shingle.
Some cap vents require.
The wrinkles typically occur somewhere in the middle of the front edge of a shingle.
If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.
Other causes of roof nail pops can be shingles that were not nailed tightly during the roof installation.
Place the nails 6 1 8 above the butt edge 1 and 13 from each end from each cutout.
Slide the pry bar under the nail head and gently pry the.
Back about 1 inch you ll see a roofing nail.
Then secure another nail an inch above each cutout.
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So your next course of shingles should cover the nails by 1 inch vertically.
Make sure none of the nails are within 2 of joint of shingle.
Use the grip rite 11 x 1 1 4 in.
During climate changes expansion and contraction can cause to the nail to pop up.
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Long time roofing experts suggest 5 to 6 nails per shingle.
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Nails are placed along the protruding flanges roughly every 6 inches.
Nail is backing out of decking and pushing through the shingle causing a penetration point for moisture.
When this happens the roof shingles become loose and start to lift.
Some roofers call the defect a fish mouth.
Roof nail pops on a roof can be caused by a variety of reasons.
For shingles in windy areas use 6 nails per shingle.
Repair roof shingles.
3 use the grip rite 11 x 1 1 4 in.
Do not insert nails into or above the sealing strip.
Thursday july 19 2018 a popped nail looks like a wrinkle in a line of shingles when you look up the roof as in the photo above that has them at multiple locations.