What Is Roof Sheathing Code

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.

What is roof sheathing code.

Recently had hail damage to my asphalt shingles. 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. Plywood is layers of wood. Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors.

The roofer has been tearing the old roof off and has found that the sheathing is dimensional lumber. Fasteners shall comply with astm f 1667. He says it is not up to code and he has no choice. The typical thickness range for sheathing is 3 8 to 3 4 inch.

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. Never attach roof sheathing with staples. 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. The international energy conservation code iecc is of particular importance to low slope roof design due to its r value requirements which affect the amount of insulation that has to be included in roof assemblies.

At my expense of. Fasteners shall comply with astm f 1667. 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. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Where the roof sheathing is less than 3 4 inch 19 mm thick the fasteners shall penetrate through the sheathing. 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. All of these codes are produced by the international code council icc. 8d ring shank nails should be used instead.