Seems 1 1 4 nails are recommended.
Roof nail lengths.
Roofing nails are used in roof installation to fasten shingles to install roofing felt for waterproofing and to attach roof tiles and sheet metal.
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.
Most of the nails do not come through the plywood.
Planning and executing a good roofing job requires knowledge of every aspect of the job.
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.
Existing roof is a 3 tab shingle with 1 2 plywood.
Use the grip rite 11 x 1 1 4 in.
Roofs been on quite awhile and the nails held ok.
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Roofing nails roofing nail sizes sheathing 3d box 4d box 5d box 6d box what size roofing nails composition shingles wood shakes wood shingles.
It is outside in a yard.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
The length of each nail must be a minimum of 1 inches long and for roof overs atlas recommends a nail length of at least 2 inches.
A peculiarity of the roofing nails standard is that it is the only type of nail with zero tolerance for undersize heads.
Using the correct size of roofing nail will ensure that your roof stays intact for many years to come and can help you avoid the common problem of roofing nails that extract themselves over time and cause you to lose shingles.
But these roofing products can only do their jobs when properly installed.
The nails used are 1 2 3 4.
Roofing nails are short diamond pointed steel nails with a wide flat head.
The shank may be barbed and they are often galvanized.
The roof structure is completely open and can be seen from underneath.
Roofing shingles and underlayment work together to provide your home with protection from the elements including rain snow and wind.
There are different kinds of roofing nails made of different materials and in various sizes.
Nails of the proper length should penetrate three fourths of an inch into the roof.
Nails should have a minimum nominal shank diameter of 11 or 12 gauge and a minimum head diameter of three eighths of an inch.
Roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing.
All roofing nails have wide flat heads and short shanks.
Where the roof sheathing is less than 3 4 inch 19 1 mm thick the fasteners shall.