To ensure optimal performance of your asphalt roofing shingles be sure to follow these general directions for proper nailing.
How to properly nail shingles on a roof.
There is no easy fix to this problem and the entire roof may need to be replaced.
Nail the cut off shingle into place about 6 inches from its lower edge.
High nailing can reduce the strength of the seal and make blow off more likely.
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Follow the application instructions on the shingle wrapper.
However make sure that you do not nail into the tar strip.
If you are putting a layer of asphalt shingles over an existing layer of asphalt shingles on to a 3 4 inch deck or a plank deck then you should be using 1 1 2 inch nails.
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.
Nails don t capture the shingle below when they are placed too high.
Use the recommended number of nails per shingle.
Improperly secured shingles can slide out of the nail holes which isn t covered by the manufacturer s warranty.
Using your hammer pry up the nails.
The next shingles above should cover the nails by about 1 inch vertically.
When properly located nails should catch the top edge of the shingle under it.
Bring a trash can up on the roof so you have a place to throw old shingles and flashing.
Use caution so you don t damage any windows or siding in the process.
Install the recommended number of nails per shingle.
Use the correct type size and grade of nail as is specified in the application instruction.
Make sure to keep nails out of the tar strip as you work.
If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.
Use the correct roofing nail material size and grade as specified in the shingle installation instructions.
Hammer in one nail about 2 inches from each end of each shingle and another nail about 1 inch above each cutout.
Align the shingles properly before nailing to avoid exposing nails in the course below.
Lay a starting row at the bottom of the roof along the edge.
Fasten shingles with corrosion resistant nails.
Position the nails according to the shingle specifications.
How to properly nail shingles on a roof the preferred order for nailing is 1 3 2 4 but 1 2 3 4 is also acceptable.