Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.
Roofing nail length for 3 4 plywood.
On lumber type decking then a minimum of 3 4 penetration and a irregular nail shank.
Pound the nails in with a hammer and then tap them in flush with a nail set.
The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.
Stainless steel annular ring shank roofing nail 150 pack.
Size length and gauge of nails.
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.
The flush set of the appropriately colored nail head will blend in with the darker seam color of the panel.
If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.
For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail.
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A structure s roof truss spacing can vary from every 12 to 24 inches.
To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves.
The specification for this states that on plywood or osb roof decks the nail shall penetrate past the point with the shank exposed.
Wood shakes minimum 3 4 sheathing wood shakes nail type minimum length 18 straight split 5d box 1 3 4 18 and 24 handsplit and resawn 6d box 2.
This 3 4 spec is most used round here for exposed decorative tongue and groove decking.
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Roofing nails range from one to six inches in length.
The thickness of the nail is directly proportional to its length thus the longer the nail.
Note that roofing nails come in different sizes lengths and gauges.