Roof Sheathing Thickness 24 Oc

Oc rafters i have worked with cdx generic osb and advantech.

Roof sheathing thickness 24 oc.

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. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Tongue and groove sheathing rated 40 20.

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. 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. Sheathing should be a minimum of 19 32 inch thick.

What about the roof sheathing at 24 in. Never attach roof sheathing with staples. However if there is ever a roof leak i think the cdx holds up better. That means it can be used at 24 in.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. It can be used for rafters up to 40 in. The typical thickness range for sheathing is 3 8 to 3 4 inch. It will support roof.

8d ring shank nails should be used instead. Plywood thickness for 24 quot. For rafters or 16 in. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.