The rationale behind the number is that in most cases four nails are the right number of nails to do a quality job.
Roofing nails per shingle.
If you have high wind areas you will want to use five nails pers shingle equating to about 480 per square.
This amounts to an average of 320.
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.
Nail fastening pattern a four nail fastening pattern per shingle is required to take advantage of the maximum wind warranty available on owens corning duration shingles.
Let us explain a bit more.
Roof material nail length pounds per square coils per square.
These nails are installed using an air driven nail gun to assure the shingles are fully secured.
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3 use the grip rite 11 x 1 1 4 in.
General fastening rules proper fastening is essential to a good roof performance.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
Use the grip rite 11 x 1 1 4 in.
Standard roof installation requires four nails per shingle.
First our nails are 1 inch hot dipped galvanized ring shanked for extra bite versus a smooth shank that is less secure.
Roofing nails per square most shingle manufactures recommend using four nails per shingle on the main area of your roof and five nails per square in the first row of roofing.
For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails.
Six nails are required for structures with slopes exceeding 60 degrees or 21 inches per foot.
This adds up to an average of 320 nails or 100 square feet.
A nail line is indicated on the shingles and locates the correct places to put nails.
The nails should be long enough to go 3 4 inch 1 9 cm into the roof.
In some areas of the country building codes may require six nails as well.
The number of nails per pound or kg differs.
Nail quantity per square shingle manufacturers recommend using four nails per shingle in the main part of the roof and five nails per shingle in the first row.
Inquire at the hardware store regarding the size of nail you ll need and how many pounds or kilograms you ll need of that size.
However placement of the nails is the most important in any roofing job.
Roof nails per unit comp shingles 4 nails per shingle wood shakes 2 nails per shake wood shingles 2 nails per shingle osb plywood 72 nails per sheet.