Roof Sheathing Thickness For 24 Oc

Sheathing should be a minimum of 19 32 inch thick.

Roof sheathing thickness for 24 oc.

Around here southern mn the cities you can drive through the neighborhoods with cheaper houses the ones with trusses on 24 centers and 1 2 or 7 16 sheeting and most many will have sagged roofs. Tongue and groove sheathing rated 40 20. A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. The typical thickness range for sheathing is 3 8 to 3 4 inch.

That means it can be used at 24 in. 2 thoughts on what thickness osb to use under shingles. 1 inch 25 4 mm. Plywood thickness for 24 quot.

Support spacing when the panel is used for subflooring. Panels are rated 32 16. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Never attach roof sheathing with staples.

However if there is ever a roof leak i think the cdx holds up better. It can be used for rafters up to 40 in. For rafters or 16 in. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Two numbers separated by a slash e g 32 16 or 48 24. The second number is the maximum o c. It will support roof. The first number is the maximum on center o c support spacing in inches for roof sheathing.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. What about the roof sheathing at 24 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. 8d ring shank nails should be used instead.

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. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.