Nailing Pattern For Plywood Roof Sheathing

For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches.

Nailing pattern for plywood roof sheathing. Ventilate the roof according to current building codes step 3. Recommendations were developed through engineering analysis and by full scale laboratory testing. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained. 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.

Wet and dry specimens of plywood and osb panels. Nailing schedules for wood structural panel roof sheathing plywood and oriented strand board osb. Intermediate panel supports in zone 1 6 inches on center in zone 2 and 4 inches on center in zone 3. Because of the large profile that plywood presents it is important to nail the edges securely.

Strong winds can begin to easily pull plywood from walls or roofs in the event they have not been secured properly. These schedules were calculated to provide resistance to wind uplift pressure as required by most codes. Cover sheathing with. 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.

Use shingle underlayment felt conforming to astm d226 type i astm d4869 type i or astm d6757 self adhering polymer modified bitumen sheet underlayment should conform to astm d1970 or check roofing manufacturer s. And scroll down to see more details on each with installation hints and tips below. Many manufacturers recommend that nails be spaced no farther apart than 6 inches on the edge of a sheet. Generally you ll need to place two nails at each location where it makes contact with a roof truss.

Cover sheathing with shingle underlayment felt to minimize roof sheathing exposure to weather unless otherwise recommended by sheathing manufacturer. Many homes have been severely. Attaching plywood and osb sheathing. 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.

Check the nailing surface is level step 2. 07 27 2007 06 42 am 5. The roof ridge by nailing roof sheathing. Ladder framing at gable ends use extra care when attaching a ladder framed exten sion to a gable end.

For clarity sheathing nails are not shown ladder framing at gable ends.