Roof Sheathing 24 Truss Spacing

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

Roof sheathing 24 truss spacing.

Table r803 2 2 specifies the minimum sheathing thickness for framing spaced 24 inches on center based on exposure category and wind speed. 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. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.

It will support roof. While ring shank nails are still required the nail size depends on the sheathing thickness. Spaced sheathing or 1x. A structure s roof truss spacing can vary from every 12 to 24 inches.

01 with 4 nominal bearing each end 24 o c. Allowable spans for 2x4 top chord trusses using sheathing other than plywood e g. Spacing a live load deflection limited to l 240 maximum and use lumber properties as follows. 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.

2x4f 2000psif 1100psie 1 8x10 2x6f 1750 psi f 950 psi f 1900 psi e 1 8x10. To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed.