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