How Many Nails Should Be Used To Nail Roof Sheathing
Because of this concept many building standards groups specify that only nails and staples are to be used for wood structural panel attachments in wall applications.
How many nails should be used to nail roof sheathing. A structure s roof truss spacing can vary from every 12 to 24 inches. I m adding a deck with roof to the side of my house. Spacer type panel edge clips are available from some manufacturers. Boards require a minimum of two nails per truss while sheathing requires six nails due to face width and nail spacing.
The problem exists because nail sizes and spacing used to attach the sheathing to the roof s structural members rafters or trusses do not provide enough strength to keep the sheathing on. There are different kinds of roofing nails made of different materials and in various sizes. Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing. I ll be using 3 8 plywood sheathing on 2x8s with 16 centers.
Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks. 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. Ansi national design specification nds chapter 12. Roof sheathing panel spacing hints.
Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels.