How Many Nails Per Sheet Of Plywood On Roof

Please be advised that the counts above are approximate and may vary significantly due to the different amount of exposure desired in each job.

How many nails per sheet of plywood on roof. 24 new roof over an old roof. 18 roof sheathing installation home builder s guide to coastal construction page 2 of 3 recommended that deformed shank nails be used throughout the entire roof. Technical fact sheet no. Depending on the job i will pull my o c measurements as i go or premark the sheet and then tack the top of the sheet at each rafter and drive it home.

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. Plywood osb 8d 2 1 2 1 35 na. Comp shingles dimensional 1 1 4 1 63 2 63. Do not countersink these nails.

I follow the code requirements and the spacing and attachment methods listed by the apa american plywood association. Wood shakes medium 5d 1 3 4 1 75 na. Wood shakes heavy s 6d 2 2 50 na. 570 nails per square.

The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. There are many uses for plywood from roofing to subfloors and everything in between. Many manufacturers recommend that nails be spaced no farther apart than 6 inches on the edge of a sheet. Nails for roof sheathing first if you re in a high wind uplift zone and even if you re not if hurricanes really are a concern you should consider yourself in one you ll want to use a modified nailing schedule typically 6 along the edge and in the field using 8d ring shank nails.

Strong winds can begin to easily pull plywood from walls or roofs in the event they have not been secured properly. Osb plywood 72 nails per sheet. Go back to the bottom of the sheet and tack it home. Comp shingles smooth 1 1 33 2 63.

Nail spacing for sheets of osb and plywood is 8 inches per nail. Now you have ten nails in the sheet and it s flush with the rest of them and you go to the next sheet and repeat. 12 oc on interior sheet rafters and 6 oc on exterior perimeter rafters of each sheet. Roof material nail length pounds per square coils per square.

Wood shingles 3d 1 1 4 2 28 na. If 8d common nails are specified the nail diameter must be at least 0 131 inch wider than typical 8d pneumatic nails. The lengths of nails are dependent upon the medium into which the nail is driven and can be adapted for a variety of. 8 penny coil nails usually with ring shank and spacing with clips or at least a 10 penny nail.

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. Provide a 1 8 inch gap. Shakes and shingles also come in a variety of widths that may also affect the number of nails used per square. Lay sheets in rows with the long edge horizontal to the roof bottom.