Nailing Pattern For Plywood Roof Sheathing

Attaching plywood and osb sheathing.

Nailing pattern for plywood roof sheathing.

Because of the large profile that plywood presents it is important to nail the edges securely. For clarity sheathing nails are not shown ladder framing at gable ends. Lumber width slats of wood used for roof sheathing are lumber boards with face widths ranging from 4 to 12 inches. 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.

Properly fasten panels including fastening and spacing hints step 4. Wet and dry specimens of plywood and osb panels. 07 27 2007 06 42 am 5. These schedules were calculated to provide resistance to wind uplift pressure as required by most codes.

Cover sheathing with shingle underlayment felt to minimize roof sheathing exposure to weather unless otherwise recommended by sheathing manufacturer. Check the nailing surface is level step 2. Recommendations were developed through engineering analysis and by full scale laboratory testing. Nailing schedules for wood structural panel roof sheathing plywood and oriented strand board osb.

Ventilate the roof according to current building codes step 3. 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. Strong winds can begin to easily pull plywood from walls or roofs in the event they have not been secured properly. The roof ridge by nailing roof sheathing.

Many homes have been severely. Many manufacturers recommend that nails be spaced no farther apart than 6 inches on the edge of a sheet. And scroll down to see more details on each with installation hints and tips below. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained.

Intermediate panel supports in zone 1 6 inches on center in zone 2 and 4 inches on center in zone 3. 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. 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.