What Is Roof Sheathing Code

Fasteners shall comply with astm f 1667.

What is roof sheathing code.

Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. Recently had hail damage to my asphalt shingles. The trusses and beams of the roof give the roof its initial pitch and structure and then the sheathing is applied so the actual underlayment and roof covering can be applied. All of these codes are produced by the international code council icc.

Roof sheathing is the material that goes on top of your roofing structure including the trusses and beams that the roofing system is constructed on. He says it is not up to code and he has no choice. Plywood is layers of wood. The roofer has been tearing the old roof off and has found that the sheathing is dimensional lumber.

Sheathing should be a minimum of 19 32 inch thick. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. He says it all has to be torn off and replaced with plywood. Never attach roof sheathing with staples.

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. The typical thickness range for sheathing is 3 8 to 3 4 inch. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. H clips provide additional stiffness between bearing points for the unsupported edges of wood panel plywood or osb roof sheathing along with the necessary 1 8 gap for expansion as shown below illustrated on a bag of simpson h clips.

At my expense of. 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. Where the roof sheathing is less than 3 4 inch 19 mm thick the fasteners shall penetrate through the sheathing. 8d ring shank nails should be used instead.