Roofing Nails Through Plywood

The sharp tip of the roofing nail should completely pass through and extend approximately 3 8 inch past the underside of the roof sheathing.

Roofing nails through plywood.

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. 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. It makes sense to use nails to attach the decking or sheathing into place.

Holding the roof together. Plywood paneling is anchored into wooden wall studs using colored paneling nails also called finishing nails or brads driven inside the darker seams of the paneling. That is why it is important to use roofing nails when doing a roofing 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.

This nail probably was driven very close to the horizontal seam of the sheets of plywood under the shingles. After contacting the service representative we dealt with during our roofing project we were told the work was done according to code standards and the company uses 1 inch nails on all projects. Roofing nails are made of galvanized steel to protect them from the elements. I personally do not like staples because i don t have any confidence in the longevity of the wire gauge.

These nails protrude about a half inch and are visible. Never screwed the plywood roof decking on. The nails we use are specifically designed for this job made to keep from pulling away from the rafters being nailed into.