Roof Sheathing Nailing Pattern

The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

Roof sheathing nailing pattern. Full round heads are recommended to avoid head pull through. For clarity sheathing nails are not shown ladder framing at gable ends. Check the nailing surface is level. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained.

Many homes have been severely. Ladder framing at gable ends use extra care when attaching a ladder framed exten sion to a gable end. Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is typical layout of roof. The roof ridge by nailing roof sheathing.

Tab shingles need two nails on each side of the tab. Wood of more dense species such as douglas fir or southern pine provides greater nail with drawal resistance and significantly improves the performance of the sheath ing nailing. Mark this meeting point with a nail. 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.

Always check for a level nailing surface. The 4 and 5 measurements give. Ventilate the roof according to current building codes. The 5 mark exactly meets the 4 mark on the tape from point a.

Each of these factors plays a role in determining how many nails you ll need to use per board during roof sheathing application. The roof framing members into which the sheathing fasteners are driven. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. 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.

An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels. In some cases the architect or. Tape should be hooked to the nail at point a and extended 4 directly up along the rake and parallel to it. Cover sheathing with shingle underlayment felt to minimize roof sheathing exposure to weather unless otherwise recommended by sheathing manufacturer.

A structure s roof truss spacing can vary from every 12 to 24 inches. The second tape should be hooked to the nail at b and extended 5 diagonally to the rake. Cover sheathing with shingle underlayment felt. Another consideration relates to the con dition of the building envelope during the high wind.

Properly fasten panels including fastening and spacing hints step 4.