Roofing Nail Length For 3 4 Plywood

Size length and gauge of nails.

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. Before you go shopping for roofing nails you need to have an idea of what you are looking for. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves.

The thickness of the nail is directly proportional to its length thus the longer the nail. More than 1 layer of roofing not recommended over 3 8 sheathing. The specification for this states that on plywood or osb roof decks the nail shall penetrate past the point with the shank exposed. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

Wood shakes minimum 3 4 sheathing wood shakes nail type minimum length 18 straight split 5d box 1 3 4 18 and 24 handsplit and resawn 6d box 2. System november 19 2014 9 56pm 5. Roofing nails range from one to six inches in length. Stainless steel annular ring shank roofing nail 150 pack.

Simpson strong tie 0 131 in. A structure s roof truss spacing can vary from every 12 to 24 inches. 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. For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail.

On lumber type decking then a minimum of 3 4 penetration and a irregular nail shank. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. Pound the nails in with a hammer and then tap them in flush with a nail set.