Roof Plywood Thickness Code

Sheathing should be a minimum of 19 32 inch thick.

Roof plywood thickness code.

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. Most roofs will be sheathed in plywood at least 3 8 inch thick. 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. 8d ring shank nails should be used instead.

Always ensure your work site is compliant with current osha regulations. 2018 international building code. See chapter 10 means of egress particularly 1011 12 stairway to roof 1011 12 2 roof access and 1011 16 ladders. Avoid roof complaints with proper framing sheathing and roofing techniques.

Produced by apa the engineered wood association formerly the american plywood association in 1989. Never attach roof sheathing with staples. Structural roof sheathing shall be designed in accordance with the general provisions of this code and the special provisions in this section. 2018 international residential code.

On the upcodes website. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Loads will vary with the. That s considered to be the minimum.

The typical thickness range for sheathing is 3 8 to 3 4 inch. 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. Chapter 9 roof assemblies. This video may depict some work practices that do not meet current safety standards.