Roofing Nails Through Plywood

Never screwed the plywood roof decking on.

Roofing nails through plywood.

Holding the roof together. Roofing nails are made of galvanized steel to protect them from the elements. These pieces of plywood need something heavy duty to keep them from slipping off the roof. 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.

Believe me you don t want to have to remove one of these sheets when fastened at the proper nail spacing. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves. 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. This nail probably was driven very close to the horizontal seam of the sheets of plywood under the shingles.

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. I personally do not like staples because i don t have any confidence in the longevity of the wire gauge. 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.

He stated code standards are that the nails protrude through the surface. The nails we use are specifically designed for this job made to keep from pulling away from the rafters being nailed into. The sharp tip of the roofing nail should completely pass through and extend approximately 3 8 inch past the underside of the roof sheathing.