Roofing Nail Length For 3 4 Plywood

To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves.

Roofing nail length for 3 4 plywood.

The flush set of the appropriately colored nail head will blend in with the darker seam color of the panel. 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. A structure s roof truss spacing can vary from every 12 to 24 inches. 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. The thickness of the nail is directly proportional to its length thus the longer the nail. Before you go shopping for roofing nails you need to have an idea of what you are looking for. This 3 4 spec is most used round here for exposed decorative tongue and groove decking.

More than 1 layer of roofing not recommended over 3 8 sheathing. Pound the nails in with a hammer and then tap them in flush with a nail set. System november 19 2014 9 56pm 5. Roofing nails range from one to six inches in length.

Size length and gauge of nails. Simpson strong tie 0 131 in. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. 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.

Note that roofing nails come in different sizes lengths and gauges. Stainless steel annular ring shank roofing nail 150 pack. On lumber type decking then a minimum of 3 4 penetration and a irregular nail shank.