Roofing Nail Length For 3 4 Plywood

Simpson strong tie 0 131 in.

Roofing nail length for 3 4 plywood.

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. On lumber type decking then a minimum of 3 4 penetration and a irregular nail shank. Pound the nails in with a hammer and then tap them in flush with a nail set. Before you go shopping for roofing nails you need to have an idea of what you are looking for.

Size length and gauge of nails. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves. The specification for this states that on plywood or osb roof decks the nail shall penetrate past the point with the shank exposed.

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. More than 1 layer of roofing not recommended over 3 8 sheathing. Stainless steel annular ring shank roofing nail 150 pack. For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail.

Roofing nails range from one to six inches in length. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice. The thickness of the nail is directly proportional to its length thus the longer the nail. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

The flush set of the appropriately colored nail head will blend in with the darker seam color of the panel. A structure s roof truss spacing can vary from every 12 to 24 inches. Note that roofing nails come in different sizes lengths and gauges.