Osb Roof Decking Which Side Up

Or for floor sheathing over supports spaced up to 16 inches o c.

Osb roof decking which side up.

The textured surface helps flashing and waterproof underlay stay in place effectively. Install osb textured side up. Osb roof panels should always be installed with the grade stamp facing into the attic and the screened surface with the nail guide lines facing up. Thicknesses range from 5 16 to 3 4 inch and the proper.

Avoid installing osb with the textured side down. Osb sheathing has different textures on both sides as well. For pricing and availability. Spacing in inches for roof sheathing.

For pricing and availability. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. Lay sheets in rows with the long edge horizontal to the roof bottom. Avoid putting osb on wet roof trusses.

Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. The screened surface also provides a little more traction for construction workers during installation. Also by installing the stamps down the rougher side of the panels is kept upward which helps with worker traction on the jobsite. When the grade stamp is covered by roofing the building inspector will not be able to confirm that the correct osb roofing panel was used.

A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. Be particular about your framing you cannot install your osb sheathing directly. The second number is the maximum o c.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Provide a 1 8 inch gap. One side has a polyurethane coating that shields the object from natural elements such as moisture but the opposite side does not have a finish at all. Roof trusses must be dry when sheathing a roof with osb to prevent mold growth in the roof and coverage gaps as the trusses dry and shrink.

Support spacing when the panel is used for subflooring. The span rating on floor span panels appears as a single.