Plywood Roof Sheathing Nailing Schedule

To assure best performance follow these panel spacing and nailing recommendations for apa rated sheathing apa rated sturd i floor and apa rated siding.

Plywood roof sheathing nailing schedule.

Intermediate panel supports in zone 1 6 inches on center in zone 2 and 4 inches on center in zone 3. These schedules were calculated to provide resistance to wind uplift pressure as required by most codes. Roof and wall sheathing 8 10d every 4 6 on the seams and 8 12 in the field shingles six roofing nails or staples per shingle. Spacer type panel edge clips are available from some manufacturers.

We use atleast 2 1 4 to 2 1 2 screws to put down 1 2 inch plywood or osb but most of the time we use 2 3 8 coated coil nails also known as 8 s for hand nailing. Use a 10d box nail to gauge 1 8 inch spacing between panels. Panel roof sheathing plywood. Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels.

Nails from sheathing to ridge board roof sheathing ridge board ridge board joist or truss joist or truss roof sheathing vent holes on each side of ridge board. Note however that minimum 8d nails are recommended for all panels 5 8 inch thick or less. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. Roof sheathing panel spacing hints.

Recommendations were developed through engineering analysis and by full scale laboratory testing. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. Tab shingles need two nails on each side of the tab drywall ceiling boards require 1 drywall screws every 6 8 while wall boards require drywall screws every 6 8 on the seams and 10 12 in the field. 07 27 2007 06 42 am 5.

Note holes should not remove more than half of the sheathing section note. If roof sheathing is cut and removed to achieve an air slot continuity and diaphragm action are affected. Spacer type panel edge clips may also be used for roof sheathing applications. Nailing schedules for wood structural panel roof sheathing plywood and oriented strand board osb.

For the 150 mph wind speed region the fastening schedule prescribes nailing at 6 inches on center at supported panel edges and over intermediate panel sup ports in zone 1 4 inches on center in zone 2 and 3 inches on center in zone 3. Nailing schedule is the familiar 6 inches on center at supported panel edges including gable end walls and 12 inches on center over intermediate panel supports. Wet and dry specimens of plywood and.