Osb Roof Decking Which Side Up

Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.

Osb roof decking which side up.

Avoid putting osb on wet roof trusses. The textured surface helps flashing and waterproof underlay stay in place effectively. Osb sheathing has different textures on both sides as well. 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.

For pricing and availability. For pricing and availability. Thicknesses range from 5 16 to 3 4 inch and the proper. Spacing in inches for roof sheathing.

Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. 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. 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. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter.

Support spacing when the panel is used for subflooring. Watch this now to learn how to avoid this same pr. Provide a 1 8 inch gap. 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.

The screened surface also provides a little more traction for construction workers during installation. Install osb textured side up. Be particular about your framing you cannot install your osb sheathing directly. The second number is the maximum o c.

A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches 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. The span rating on floor span panels appears as a single. Avoid installing osb with the textured side down.

Or for floor sheathing over supports spaced up to 16 inches o c. However structurally there is no difference in how the panel will perform whether the side with the grade stamps is installed up or down.