Nailing Pattern For Roof Decking

Set and nail decking perfectly deck board spacing with chalk.

Nailing pattern for roof decking. Another consideration relates to the con dition of the building envelope during the high wind event. For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches. 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. Refer to the current fm loss prevention data sheet 1 29 for special considerations regarding perimeter and corners of the roof.

For those who are uninitiated in the world of fasteners a nailing pattern or fastener schedule is the national state or regional building code allowances for fastening specific materials. What is required for re nailing is a ring shank 8d corrosion resistant nail fastened every 6 inches on center and on every rafter truss throughout the roof. Plan ahead for the last board. Screws or nails for deck.

For duration series shingles owens corning recommends using either a 4 or 6 nail fastening pattern depending on the roof s slope and building code requirements. In most cases 4 nails are adequate. Slats of wood used for roof sheathing are lumber boards with face widths ranging from 4 to 12 inches. Generally you ll need to place two nails at each location where it makes contact with a roof truss.

This can be a hidden additional cost so ask your roofer for a fixed cost of providing this requirement if he has not included it in the contract. General fastening frequency and spacing for steel wood cast in place structural concrete and poured gypsum decks is covered in the acfoam nailable roof insulation fastening pattern guide. Straighten crooked boards with a chisel clamp or nail. The roof framing members into which the sheathing fasteners are driven.