Nailing Pattern For Plywood Roof Sheathing

Attaching plywood for roof sheathing.

Nailing pattern for plywood roof sheathing.

Installation tips nailing patterns the ol sage builder wall sheathing wall sheathing panels. Don t forget to space the panels 1 8 apart so they can adjust to changes in moisture conditions. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. Sheathing to underlying wood framing proper nailing is an important consider ation in the overall performance of steep slope roof assemblies particularly in high wind regions therefore i en courage you to be familiar with these new fastener schedules.

Follow these five simple construction steps for roof sheathing and scroll down to see more details on each with installation hints and tips below. I walked on a plywood sheathed deck a few years ago after getting used to the osb decks there was so much popping and snapping of the wood that i didn t know if i wanted to go to the ridge or just get back down and let someone else do the roof. A typical nailing pattern for a standard osb exterior wall is to insert one 8d nail every six inches along seams and in every stud that lies beneath the plane. Correctly nailed sheathing will stays flush with the framing can help reduce air leakage.

Roof and wall sheathing 8 10d every 4 6 on the seams and 8 12 in the field. These schedules were calculated to provide resistance to wind uplift pressure as required by most codes. Basis the recommendations provided in the apa data file were developed through engineering. The critical fasteners occur at the gable framing member not necessarily at the edge of the sheathing.

Nailing accuracy is crucial along this member. If you ve ever installed shingles plywood headers or drywall you probably already know all about nailing patterns. Properly fasten panels including fastening and spacing hints. Tighter nail spacing is recommended 4 inches on center maximum.

Ventilate the roof according to current building codes. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. A structure s roof truss spacing can vary from every 12 to 24 inches. Cover sheathing with shingle underlayment felt to minimize roof sheathing exposure to weather unless otherwise recommended by sheathing manufacturer.

Here is the link for advantech s floor sheathing nailing pattern. Method for maintaining a continuous load path at the roof ridge by nailing roof sheathing. Check the nailing surface is level. 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.

Wet and dry specimens of plywood and.