Osb Roof Sheathing Thickness 24 Oc

For rafters or 16 in.

Osb roof sheathing thickness 24 oc.

24 oc 32 oc 48 oc 500 575 770 1 050 1 900 180 250 385 685 1 200 2 600 2 900 3 350 4 000 5 600 1 900. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Never attach roof sheathing with staples. 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.

For pricing and availability. It can be used for rafters up to 40 in. Relationship between span rating and nominal thickness for osb a nominal thickness b in span rating. Sheathing should be a minimum of 19 32 inch thick.

4 osb design and application guide panel grades osb panels are available in three grades identified by a designation of the intended end use. That means it can be used at 24 in. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. Panels are rated 32 16.

Tongue and groove sheathing rated 40 20. Design capacities for oriented strand board allowable stress design asd. For heavier loads a 40 20 rated panel 19 32 or 5 8 will support a 130 psf live load and 48 24 rated panels 23 32 or are good to175 psf. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. The typical thickness range for sheathing is 3 8 to 3 4 inch. Sheathing sheathing span is intended for use as covering material for roofs subfloors and walls.

8d ring shank nails should be used instead. 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.