Osb Roof Decking Thickness

Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.

Osb roof decking thickness.

1 inch 25 4 mm. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Because of its construction some manufacturers actually make larger sheets of 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.

With edge support and the same snow load 3 8 inch osb can be used. Product may vary by store. For pricing and availability. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

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. The most common uses are as sheathing in walls flooring and roof decking. Oriented strand board 660663 the home depot. Provides exceptional dimensional stability and stiffness.

Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Osb is a material with high mechanical properties osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. For pricing and availability. However you might find that osb can better suit your needs than plywood for the roof. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

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. 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. Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing.