Install Osb Roof Sheathing

The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter.

Install osb roof sheathing.

Properly fasten panels including fastening and spacing hints step 4. Cover sheathing with. Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof. Also use more nails and place them closer together to build a stronger roof.

Install osb panels on aligned 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. Select osb sheets. Ventilate the roof according to current building codes step 3.

Check the nailing surface is level step 2. 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. 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.

And scroll down to see more details on each with installation hints and tips below. Avoid the errors described when installing this roof sheathing. Oriented strand board or osb roof sheathing is a preferred material for roofing because of its strength and low weight. Align the long edge of the sheathing with the ends of the.

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. Ensure roof trusses are in proper alignment with no curves or uneven sections when installing osb to sheathe roofs. Because the plywood roof sheathing under the shingles has become brittle and weak he plans to install new plywood as well as new shingles.

When installing roof sheathing use nails with longer nail shank larger diameter and a larger head than may be required. How to correctly install plywood or osb roof sheathing.