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.
Should roofing nails go through the sheathing.
The number of nails you ll need depends on the face width of the sheathing you re using.
Yes it is important that roofing nails are long enough to penetrate the sheathing.
The nails we use are specifically designed for this job made to keep from pulling away from the rafters being nailed into.
In fact in most states the minimum length of the nail for roofing is 1 inches.
Using a 1 inch nail is best.
Roof truss spacing will vary on the structure s construction.
Ask contractors how building codes may affect the appearance of your exterior projects and discuss cosmetic options before the job begins.
These pieces of plywood need something heavy duty to keep them from slipping off the roof.
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.
A home with exposed eaves normally has a beadboard or similar type of wood on the exposed portion if this is the case and nails are poking through your roofer needs to fix this for you.
With the shingles and inch sheathing the nails should protrude about inch through.
It is vitally important that roofing nails of the correct length were used to secure the shingles.
The sharp tip of the roofing nail should completely pass through and extend approximately 3 8 inch past the underside of the roof sheathing.
It makes sense to use nails to attach the decking or sheathing into place.
There are typically 12 16 or 24 inch spans between each roof truss.
Holding the roof together.
This nail probably was driven very close to the horizontal seam of the sheets of plywood under the shingles.