Roof Sheathing Thickness For 24 Oc

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.

Roof sheathing thickness for 24 oc.

Panels are rated 32 16. 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. The first number is the maximum on center o c support spacing in inches for roof sheathing.

Two numbers separated by a slash e g 32 16 or 48 24. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Tongue and groove sheathing rated 40 20. The typical thickness range for sheathing is 3 8 to 3 4 inch.

2 thoughts on what thickness osb to use under shingles. Support spacing when the panel is used for subflooring. It will support roof. Plywood thickness for 24 quot.

For rafters or 16 in. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. However if there is ever a roof leak i think the cdx holds up better. Sheathing should be a minimum of 19 32 inch thick.

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. It can be used for rafters up to 40 in. For subfloors zip s 1 2 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.

1 inch 25 4 mm. 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. What about the roof sheathing at 24 in.

Oc rafters i have worked with cdx generic osb and advantech. That means it can be used at 24 in.