Roof Sheathing Thickness For 24 Oc

The second number is the maximum o c.

Roof sheathing thickness for 24 oc.

Panels are rated 32 16. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in. Never attach roof sheathing with staples.

That means it can be used at 24 in. For rafters or 16 in. 1 inch 25 4 mm. However if there is ever a roof leak i think the cdx holds up better.

What about the roof sheathing at 24 in. For subfloors zip s 1 2 in. It will support roof. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Plywood thickness for 24 quot. The typical thickness range for sheathing is 3 8 to 3 4 inch. Tongue and groove sheathing rated 40 20. Oc rafters i have worked with cdx generic osb and advantech.

2 thoughts on what thickness osb to use under shingles. Sheathing should be a minimum of 19 32 inch thick. Support spacing when the panel is used for subflooring. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.

Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Two numbers separated by a slash e g 32 16 or 48 24. The first number is the maximum on center o c support spacing in inches for roof sheathing. 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 rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. 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.