Roof Plywood Thickness Code

Most roofs will be sheathed in plywood at least 3 8 inch thick.

Roof plywood thickness code.

Structural roof sheathing shall be designed in accordance with the general provisions of this code and the special provisions in this section. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load. 2018 international building code. Never attach roof sheathing with staples.

That s considered to be the minimum. See chapter 10 means of egress particularly 1011 12 stairway to roof 1011 12 2 roof access and 1011 16 ladders. 8d ring shank nails should be used instead. Roof sheathing conforming to the provisions of table 2304 7 1 2304 7 2 2304 7 3 or 2304 7 5 shall be deemed to meet the requirements of this section.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. 2018 international residential code. Avoid roof complaints with proper framing sheathing and roofing techniques. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Loads will vary with the. Produced by apa the engineered wood association formerly the american plywood association in 1989. On the upcodes website. Always ensure your work site is compliant with current osha regulations.

Sheathing should be a minimum of 19 32 inch thick. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. This video may depict some work practices that do not meet current safety standards.