Nailing Pattern For Roof Decking

Plan ahead for the last board.

Nailing pattern for roof decking. Another consideration relates to the con dition of the building envelope during the high wind event. 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. Typically 15 32 inch or thicker panels are required in high wind areas. Cover sheathing with.

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. There are hundreds of different nailing patterns for tons of building materials ranging from drywall to trusses and everything in between. Set the first board along a chalk line to start straight. 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.

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. For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches. Fasten panels with a minimum of 8d common 0 131 inch by 2 1 2 inch. A roofing nail should have a minimum nominal shank diameter of 12 gauge 2 67 mm and a minimum head diameter of 9 5 mm.

Generally you ll need to place two nails at each location where it makes contact with a roof truss. Oriented strand board osb or plywood can be used although plywood will provide higher nail head pull through resistance. The roof framing members into which the sheathing fasteners are driven. Slats of wood used for roof sheathing are lumber boards with face widths ranging from 4 to 12 inches.

N improved fasteners such as ring shank nails increase the uplift resistance of the roof sheathing. Start nails into the deck board. Set and nail decking perfectly deck board spacing with chalk. Screws or nails for deck.

Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks. 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. Straighten crooked boards with a chisel clamp or nail. Provide roof ventilation according to building codes.