Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.
Replacing roof sheathing.
If your old house has 1 inch dimensional sheathing 1x4 or 1x6 or greater you can use plywood or osb for the replacement even if you re only partially replacing your roof.
Damaged shingles and rotted plywood must be removed before replacing them with new plywood and roofing material.
Determine which section of roof sheathing to remove and build your scaffolding to that area.
Additional costs to replace a roof remove the old roof install flashing install plywood sheathing replace roof decking pay for permits.
Rafters made from solid wood withstand damage from moisture better than sheathing does but if any rafters.
If your home is.
Step 1 marking the work area.
The old sheathing boards are likely three quarters of an inch.
Step 3 remove the roof sheathing.
Rotted plywood is identifiable by sinking areas of the roof or visible leaks.
Plywood is a bit more expensive but is usually.
In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.
Although the plywood typically lasts longer than most shingles and roof coverings leaks can cause them to rot.
Roof sheathing or decking is one of those elements.
How to replace roof sheathing tear off methods.
Step 2 accessing the roof sheathing.
Step 4 the new roof sheathing.
Sometimes it may be a very small area that requires repairs and other times it may be several sheets of plywood that must be taken out and replaced.