Roof Sheathing 24 Truss Spacing

An excerpt of table r803 2 2 is shown in the next column.

Roof sheathing 24 truss spacing.

Each of these factors plays a role in determining how many nails you ll need to use per board during roof sheathing application. Allowable spans for 2x4 top chord trusses using sheathing other than plywood e g. Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

While ring shank nails are still required the nail size depends on the sheathing thickness. 2x4f 2000psif 1100psie 1 8x10 2x6f 1750 psi f 950 psi f 1900 psi e 1 8x10. Spaced sheathing or 1x. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.

A structure s roof truss spacing can vary from every 12 to 24 inches. Boards require a minimum of two nails per truss while sheathing requires six nails due to face width and nail spacing. Roof sheathing basics the skeleton of a roof is formed with rafters or trusses generally spaced 16 inches or 24 inches apart from the center of one rafter to the center of the next. 01 with 4 nominal bearing each end 24 o c.

Spacing a live load deflection limited to l 240 maximum and use lumber properties as follows. It will support roof.