Roofing Nail Length For 7 16 Osb

7 16 apa rated sheathing with 8d nails 4 oc.

Roofing nail length for 7 16 osb.

To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves. 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. Nominal nail nail size nail spacing at nail size nail spacing at panel penetration common or panel edges in apa. Osb panels can swell slightly so leave a 1 8 inch gap between panels during installation.

Before you go shopping for roofing nails you need to have an idea of what you are looking for. This means that you ll need to use six nails per each truss that runs under the sheathing because each sheet measures 4 feet wide by 8 feet long. What size and length of sheathing and roofing nails should i use. I will also installing asphalt architectural shingles.

Nail spacing for sheets of osb and plywood is 8 inches per nail. The thickness of the nail is directly proportional to its length thus the longer the nail. 4 feet equals 48 inches which you then divide by 8 to determine that you ll need six nails where the board comes in contact with a truss. Note that roofing nails come in different sizes lengths and gauges.

I will be using a coil roof nailer for the shingles and hammer for the sheathing. To roof diaphragm at top and to foundation at bottom roof horizontal diaphragm. Roofing nails roofing nail sizes sheathing 3d box 4d box 5d box 6d box what size roofing nails composition shingles wood shakes wood shingles. Roofing nails range from one to six inches in length.

Using the correct size of roofing nail will ensure that your roof stays intact for many years to come and can help you avoid the common problem of roofing nails that extract themselves over time and cause you to lose shingles. I will be installing 7 16 osb over the existing surface which are approximately 1 2 thick boards spaced about 2 1 2 apart.