Osb Which Side Up Roofing

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.

Osb which side up roofing.

Install osb textured side up. The textured surface helps flashing and waterproof underlay stay in place effectively. 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. Be particular about your framing you cannot install your osb sheathing directly.

Avoid installing osb with the textured side down. The screened surface also provides a little more traction for construction workers during installation. 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. Builders use osb to sheath.

Watch this now to learn how to avoid this same pr. The resistance of osb to rot depends on the material from which it is made. 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. By michael logan oriented strand board or osb is a sheet panel product similar to plywood made from layers of wood strands that are oriented in opposite directions.

Avoid putting osb on wet roof trusses.