Roof Sheathing Thickness For 24 Oc

For subfloors zip s 1 2 in.

Roof sheathing thickness for 24 oc.

It will support roof. Tongue and groove sheathing rated 40 20. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The typical thickness range for sheathing is 3 8 to 3 4 inch.

A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. For rafters or 16 in. The first number is the maximum on center o c support spacing in inches for roof sheathing. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

Never attach roof sheathing with staples. Plywood thickness for 24 quot. 1 inch 25 4 mm. Sheathing should be a minimum of 19 32 inch thick.

8d ring shank nails should be used instead. What about the roof sheathing at 24 in. Panels are rated 32 16. The second number is the maximum o c.

Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 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. That means it can be used at 24 in. Support spacing when the panel is used for subflooring.

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. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Oc rafters i have worked with cdx generic osb and advantech. However if there is ever a roof leak i think the cdx holds up better.

Two numbers separated by a slash e g 32 16 or 48 24. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.