Roof Sheathing Thickness 24 Oc

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in. Sheathing should be a minimum of 19 32 inch thick.

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Floor Sheathing Upcodes

Lawriter Oac 4101 1 23 01 Wood

Chapter 23 Wood Building Code 2012 Of Tennessee Upcodes

1 inch 25 4 mm.

Roof sheathing thickness 24 oc.

Panels are rated 32 16. The typical thickness range for sheathing is 3 8 to 3 4 inch. It will support roof. That means it can be used at 24 in.

However if there is ever a roof leak i think the cdx holds up better. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. For rafters or 16 in. Tongue and groove sheathing rated 40 20.

As far as installation goes i much prefer using osb or advantech over ply simply because it lays flat and doesn t warp curl like cdx. Oc rafters i have worked with cdx generic osb and advantech. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. 8d ring shank nails should be used instead.

For subfloors zip s 1 2 in. Roof sheathing shall be structural wood panels plywood osb with a minimum five eighths inch thickness grade stamped for use and span. It can be used for rafters up to 40 in. Never attach roof sheathing with staples.

Plywood thickness for 24 quot. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for. Secure roof sheathing panels to the roof framing with 8d common nails spaced six inches on center at the edges and twelve inches on center at intermediate supports. What about the roof sheathing at 24 in.