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.
How to deck a roof osb.
I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.
Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.
Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot.
In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.
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.
Lay sheets in rows with the long edge horizontal to the roof bottom.
The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter.
The screened surface also provides a little more.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
Thicknesses range from 5 16 to 3 4 inch and the proper.
A homeowner recently wrote and asked me the following regarding osb roof decking.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Roof sheathing or decking is one of those elements.
Osb is widely used as roof decking material.