Roof Sheathing Nailing Pattern

Many homes have been severely.

Roof sheathing nailing pattern.

Two on one side bridging between joists toenail each end with two 8d sole plate to joist or blocking at braced wall. Ventilate the roof according to current building codes step 3. Two on one side joists to sills or girders toenail three 10 12d. 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. 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. For clarity sheathing nails are not shown ladder framing at gable ends. Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. Before hurricane andrew devastated south florida in 1992 roof sheathing was generally attached using 6d nails spaced at 6 inches along the edges of the sheathing and at 12 inches along interior. The roof framing members into which the sheathing fasteners are driven. And scroll down to see more details on each with installation hints and tips below.

Cover sheathing with. Full round heads are recommended to avoid head pull through. 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.

A structure s roof truss spacing can vary from every 12 to 24 inches. Each of these factors plays a role in determining how many nails you ll need to use per board during roof sheathing application. Check the nailing surface is level step 2. Holes drilled in roof sheathing for ventilation roof diaphragm action is maintained.