Install Osb Roof Sheathing
When osb is used as a structural panel it must adhere to specific span ratings specified by the.
Install osb roof sheathing. The screened surface also provides a little more traction for construction workers during installation. 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. Align the long edge of the sheathing with the ends of the. Ventilate the roof according to current building codes step 3.
How to correctly install plywood or osb roof sheathing. Ensure roof trusses are in proper alignment with no curves or uneven sections when installing osb to sheathe roofs. When installing roof sheathing use nails with longer nail shank larger diameter and a larger head than may be required. And scroll down to see more details on each with installation hints and tips below.
Avoid the errors described when installing this roof sheathing. This is usually a prerequisite in building codes. Check the nailing surface is level step 2. Because the plywood roof sheathing under the shingles has become brittle and weak he plans to install new plywood as well as new shingles.
But can he simply install new plywood over the old. Properly fasten panels including fastening and spacing hints step 4. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. 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. Oriented strand board or osb roof sheathing is a preferred material for roofing because of its strength and low weight. Cover sheathing with. Select osb sheets.
You may choose between sheets that measure half an inch or 3 4 of an inch thick. The proper way to install osb span ratings.