Roof Sheathing Thickness Osb

Roof sheathing or decking is one of those elements.

Roof sheathing thickness osb.

Loads will vary with the pitch of the roof. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. 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.

Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. We re in dallas so we don t engineer for tremendous live loads for an asphalt shingle and we feel comfortable with 16 oc rafter spacing and 7 16 osb decking. Oriented strand board 660663 the home depot. Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing.

Allowable spans for lumber floor and roof sheathing a b for si. 1 inch 25 4 mm. Provides exceptional dimensional stability and stiffness. With edge support and the same snow load 3 8 inch osb can be used.

Thicknesses range from 5 16 to 3 4 inch and the proper one to use. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. For pricing and availability. For pricing and availability.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Most roofs will be sheathed in plywood at least 3 8 inch thick. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. 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.