Roofing shingles and underlayment work together to provide your home with protection from the elements including rain snow and wind.
How do you nail shingles on a roof.
Roofing nails should be long enough to penetrate the roofing material and go 19 mm into osb solid wood plywood or non veneer wood decking or through thickness of decking whichever is less.
When you reach the end of a row cut the last shingle to size before installing it.
To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves sidewalls and valleys etc.
However make sure that you do not nail into the tar strip.
There is a right way and a wrong way to nail a shingle to a roof.
Shingles are designed to be nailed in specific locations and the nail must be driven to a certain depth.
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For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail.
Also place a nail 2 inches from each end of the shingle in line with the other two.
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.
A nail line is indicated on the shingles and locates the correct places to put nails.
The rationale behind the number is that in most cases four nails are the right number of nails to do a quality job.
Stay consistent and you will increase the uplift resistance of the shingles.
At the end of the day the placement of each nail will determine the durability of your shingles.
In all use four nails per 3 tab shingle.
Install the shingles so that each one is overlapping the shingle directly below it which will conceal the nails.
Nail the shingles from one side to the other so they remain flat on roof.
However placement of the nails is the most important in any roofing job.
Standard roof installation requires four nails per shingle.
Then begin nailing the shingles to the roof working in rows and starting at the edge of the roof.