Roof Sheathing Thickness Osb

For pricing and availability.

Roof sheathing thickness osb.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. 1 inch 25 4 mm. Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing.

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. Allowable spans for lumber floor and roof sheathing a b for si. With edge support and the same snow load 3 8 inch osb can be used. 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. Most roofs will be sheathed in plywood at least 3 8 inch thick. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. 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 sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. 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. Roof sheathing or decking is one of those elements. Oriented strand board 660663 the home depot.

Loads will vary with the pitch of the roof. For pricing and availability. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Provides exceptional dimensional stability and stiffness.