The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.
Osb roof sheathing thickness 24 oc.
For pricing and availability.
The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.
Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.
8d ring shank nails should be used instead.
For pricing and availability.
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.
Never attach roof sheathing with staples.
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.
The typical thickness range for sheathing is 3 8 to 3 4 inch.
Sheathing should be a minimum of 19 32 inch thick.
Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.
1 inch 25 4 mm.
Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.
4 osb design and application guide panel grades osb panels are available in three grades identified by a designation of the intended end use.
For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.
Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.
For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load.