Plywood Roof Sheathing Thickness

A flatter roof with rafters farther apart may need a thickness of up to inch.

Plywood roof sheathing thickness.

Avoid roof complaints with proper framing sheathing and roofing techniques. That s considered to be the minimum. Plywood is made with three or more layers of thin wood glued together with the grain. This video may depict some work practices that do not meet current safety standards.

Minimum plywood thickness the international residential code specifies 3 8 inch plywood for sheathing walls with a standard stud spacing of 16 inches if the siding is nailed to the studs through. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. That s considered to be the minimum.

Always ensure your work site is compliant with current osha regulations. Many factors affect thickness. When this is the case experts recommend a 5 8 inch thick sheet. Produced by apa the engineered wood association formerly the american plywood association in 1989.

Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood. Plywood subflooring 3 8 plywood plywood roof sheathing 3 4 plywood 4x8 3 4 sheathing plywood 48 24 sheathing plywood. Several factors must be considered when determining appropriate roof sheathing thickness such as the.

The minimum plywood for roofing plywood is layers of wood. Required sheathing thickness for roofing important factors. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Keep in mind that the load of the roof still plays a role in the plywood thickness.