How Many Nails Per Sheet Of Plywood On Roof

12 oc on interior sheet rafters and 6 oc on exterior perimeter rafters of each sheet.

How many nails per sheet of plywood on roof.

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. Because of plywood s versatility different types of nails are recommended for specific jobs. Comp shingles smooth 1 1 33 2 63. Roof material nail length pounds per square coils per square.

Many manufacturers recommend that nails be spaced no farther apart than 6 inches on the edge of a sheet. The lengths of nails are dependent upon the medium into which the nail is driven and can be adapted for a variety of. 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. There are many uses for plywood from roofing to subfloors and everything in between.

Please be advised that the counts above are approximate and may vary significantly due to the different amount of exposure desired in each job. Go back to the bottom of the sheet and tack it home. Wood shakes medium 5d 1 3 4 1 75 na. Wood shingles 3d 1 1 4 2 28 na.

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. Do not countersink these nails. Shakes and shingles also come in a variety of widths that may also affect the number of nails used per square.

I follow the code requirements and the spacing and attachment methods listed by the apa american plywood association. 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. If 8d common nails are specified the nail diameter must be at least 0 131 inch wider than typical 8d pneumatic nails. Plywood osb 8d 2 1 2 1 35 na.

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. Comp shingles dimensional 1 1 4 1 63 2 63. Nail spacing for sheets of osb and plywood is 8 inches per nail. 8 penny coil nails usually with ring shank and spacing with clips or at least a 10 penny nail.

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. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. Also nails should be no closer than 3 8 inch from the edge of a panel and driven flush. Provide a 1 8 inch gap.

Technical fact sheet no. Wood shakes heavy s 6d 2 2 50 na. Osb plywood 72 nails per sheet. Lay sheets in rows with the long edge horizontal to the roof bottom.