Nailing the shingles correctly is critical to the roof system s wind resistance.
Proper way to nail roof shingles.
Nail the cut off shingle into place about 6 inches from its lower edge.
In all use four nails per 3 tab shingle.
So your next course of shingles should cover the nails by 1 inch vertically.
Make sure to keep nails out of the tar strip as you work.
Hammer in one nail about 2 inches from each end of each shingle and another nail about 1 inch above each cutout.
Hammer one nail about 2 inches from each end of a shingle.
General guidelines for nailing shingles.
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Then secure another nail an inch above each cutout.
Also place a nail 2 inches from each end of the shingle in line with the other two.
You must place nails in the proper location and drive them flush with but not cutting into the shingle.
Place nails in the three tab shingles about 3 4 inch 1 8 centimeters above the cutouts near where the tab meets the upper part of the shingle.
Proper nail placement is also a requirement for the shingles limited warranty coverage.
Be mindful of the proper nailing technique so that your nails always hold the top edge of the course beneath it.