Roof Sheathing For 24 On Center

The typical thickness range for sheathing is 3 8 to 3 4 inch.

Roof sheathing for 24 on center.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in. For 1 2 inch panel maximum span shall be 24 inches. That means it can be used at 24 in.

Common roof sheathing materials include several types which are chosen depending on the budget and weather conditions of the area. What about the roof sheathing at 24 in. The second number is the maximum span when the panel is used for floor sheathing. Sheathing should be a minimum of 19 32 inch thick.

It will support roof. Span is permitted to be 24 inches on center where 3 4 inch wood strip flooring is installed at right angles to joist. For rafters or 16 in. For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load.

For subfloors zip s 1 2 in. 8d ring shank nails should be used instead. Never attach roof sheathing with staples. Span is permitted to be 24 inches on center for floors where 1 1 2 inches of cellular or lightweight concrete is applied over the panels.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. 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. To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed. Installing fasteners at less than 3 inches on center can split framing members and signifi cantly reduce fastener withdrawal capacity unless 3 inch nominal framing is used and the nailing schedule is staggered.

Ridge vents when the roof sheathing is used as a structural diaphragm as it typically is in high wind and seismic hazard areas the. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.