Roof Sheathing Thickness Osb

1 inch 25 4 mm.

Roof sheathing thickness osb.

For pricing and availability. Roof sheathing or decking is one of those elements. Oriented strand board 660663 the home depot. Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot.

For pricing and availability. With edge support and the same snow load 3 8 inch osb can be used. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Provides exceptional dimensional stability and stiffness.

Allowable spans for lumber floor and roof sheathing a b for si. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Osb roof decking thickness 7 16 1 2 or 5 8 currently we space rafters 16 oc and use 7 16 osb with h clips.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Loads will vary with the pitch of the roof.