Installing Osb Roof Sheeting

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.

Installing osb roof sheeting.

The proper way to install osb span ratings. Cover sheathing with. How to install osb roof deck sheathing. Avoid putting osb on wet roof trusses.

The textured surface helps flashing and waterproof underlay stay in place effectively. 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. This is usually a prerequisite in building codes. You may choose between sheets that measure half an inch or 3 4 of an inch thick.

Osb sheathing has different textures on both sides as well. The screened surface also provides a little more traction for construction workers during installation. When osb is used as a structural panel it must adhere to specific span ratings specified by the. Install osb textured side up.

Select osb sheets. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. Properly fasten panels including fastening and spacing hints step 4. Curved or uneven roof trusses will cause osb roof sheathing to warp or buckle under roof coverings.

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. And scroll down to see more details on each with installation hints and tips below. Avoid installing osb with the textured side down. Installing osb structural roof sheathing panels to a sloped shed style overhead deck canop.