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