Roofing Nails Through Plywood

He stated code standards are that the nails protrude through the surface.

Roofing nails through plywood.

The nails we use are specifically designed for this job made to keep from pulling away from the rafters being nailed into. This nail probably was driven very close to the horizontal seam of the sheets of plywood under the shingles. Believe me you don t want to have to remove one of these sheets when fastened at the proper nail spacing. 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. 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. Never screwed the plywood roof decking on. Roofing nails are made of galvanized steel to protect them from the elements.

2 8d galvanized ring shanks with a nail gun. The sharp tip of the roofing nail should completely pass through and extend approximately 3 8 inch past the underside of the roof sheathing. These nails protrude about a half inch and are visible. That is why it is important to use roofing nails when doing a roofing job.

It makes sense to use nails to attach the decking or sheathing into place. Generally the nails are no longer than 1 inch but if they will be going through drywall increase the nail length to 1 5 8 inches. I personally do not like staples because i don t have any confidence in the longevity of the wire gauge.