Roof Plywood Nailing Pattern

You must check before you nail.

Roof plywood nailing pattern.

If you ve ever installed shingles plywood headers or drywall you probably already know all about nailing patterns. For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches. Generally you ll need to place two nails at each location where it makes contact with a roof truss. Check the nailing surface is level step 2.

The nailing pattern that is used is also very critical. Properly fasten panels including fastening and spacing hints step 4. Not all plywood applications require the same size nail or spacing between nails. Not only that the spacing of nails on the edges of a panel are frequently different from the spacing within the panel.

As such the nailing schedule is typically the familiar 6 inches on center at supported panel edges including gable end walls and 12 inches on center over intermediate panel sup ports. Note however that minimum 8d nails 0 131 x 2 1 2 inches are recom mendedfor all panels 5 8 inch thick or less. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves. And if you ve ever had to deal with a home inspector checking your nailing schedule then you probably know all about how big of a pain in the a it can be to make them happy.

Slats of wood used for roof sheathing are lumber boards with face widths ranging from 4 to 12 inches. 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.