Osb Which Side Up Roofing

I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.

Osb which side up roofing.

Watch this now to learn how to avoid this same pr. 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. Osb sheathing has different textures on both sides as well. Builders use osb to sheath.

Avoid installing osb with the textured side down. 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. Install osb textured side up. Avoid putting osb on wet roof trusses.

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. The screened surface also provides a little more traction for construction workers during installation. The textured surface helps flashing and waterproof underlay stay in place effectively. Sheets made from aspen or poplar which are common have more rot susceptibility than those made from rot resistant.

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.