Plywood Roof Sheathing Thickness

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood.

Plywood roof sheathing thickness.

Several factors must be considered when determining appropriate roof sheathing thickness such as the. Required sheathing thickness for roofing important factors. The minimum plywood for roofing plywood is layers of wood. Keep in mind that the load of the roof still plays a role in the plywood thickness.

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Plywood subflooring 3 8 plywood plywood roof sheathing 3 4 plywood 4x8 3 4 sheathing plywood 48 24 sheathing plywood. Always ensure your work site is compliant with current osha regulations.

Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. That s considered to be the minimum. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. 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.

Many factors affect thickness. Avoid roof complaints with proper framing sheathing and roofing techniques. Plywood is made with three or more layers of thin wood glued together with the grain. 1 inch 25 4 mm.

When this is the case experts recommend a 5 8 inch thick sheet. A flatter roof with rafters farther apart may need a thickness of up to inch. This video may depict some work practices that do not meet current safety standards. That s considered to be the minimum.