Roof Sheathing Thickness 24 Oc

For rafters or 16 in.

Roof sheathing thickness 24 oc.

Roof sheathing shall be structural wood panels plywood osb with a minimum five eighths inch thickness grade stamped for use and span. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Panels are rated 32 16.

It will support roof. What about the roof sheathing at 24 in. However if there is ever a roof leak i think the cdx holds up better. Oc rafters i have worked with cdx generic osb and advantech.

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. For subfloors zip s 1 2 in. It can be used for rafters up to 40 in. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in.

Installation details shall conform to sections 2304 7 1 and 2304 7 2 for. The typical thickness range for sheathing is 3 8 to 3 4 inch. That means it can be used at 24 in. 1 inch 25 4 mm.

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. Sheathing should be a minimum of 19 32 inch thick. Plywood thickness for 24 quot. 8d ring shank nails should be used instead.