Dimensional comp shingles over 3 tab 1 1 4 1 1 2 1 1 2 1 1 2 more than 1 layer of roofing not recommended over 3 8 sheathing wood shakes minimum 3 4 sheathing wood shakes nail type minimum length.
Nail size for osb roof sheathing.
Nail spacing for sheets of osb and plywood is 8 inches per nail.
Start the sheathing at the eaves and work your way up to 1 inch from the peak.
Fasten roof sheathing panels properly fasten panels with a minimum of 8d common 0 131 inch by 2 1 2 inch nails spaced a maximum of 6 inches on center at supported panel ends and edges.
Roe osborn a senior editor at jlc responds.
Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is.
Full round heads are recommended to avoid head pull through.
Nothing below 2 1 2.
An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels.
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.
Every other course will start with a 4 by 4 foot sheet of osb or plywood.
Nails size 8b should be installed every 6 inches on edges and every 12 inches in the center area.
At intermediate supports fasten panels 12 inches on center.
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.
Watch this now to learn how to avoid this same pr.
I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.
Full round heads are recommended to avoid head pull through.
Be sure to stagger the vertical seams.
An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels.
In high wind areas more fasteners may be required.
It s true that screws have a highly effective withdrawal resistance which makes them excellent fasteners for tasks such as avoiding squeaks.
There is a common misconception in the building industry that screws always outperform nails when attaching wood to wood.