A structure s roof truss spacing can vary from every 12 to 24 inches.
How many nails should be used to nail roof sheathing.
Boards require a minimum of two nails per truss while sheathing requires six nails due to face width and nail spacing.
I m adding a deck with roof to the side of my house.
Awc special design provisions for wind and seismic chapter 4.
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.
Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks.
I ll be using 3 8 plywood sheathing on 2x8s with 16 centers.
Roof sheathing panel spacing hints.
There are different kinds of roofing nails made of different materials and in various sizes.
I read something that said the sheathing should be nailed on with 8d nails where i was planning to use 1 1 2 ringed plywood nails.
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.
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.
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.
Spacer type panel edge clips are available from some manufacturers.