Direct Answer
Roof sheathing replacement is priced per sheet — the same as decking. The total depends on how many sheets are damaged, the roof's accessibility, and whether it's part of a full replacement or a standalone repair. We assess during tear-off and quote before replacing.
"Sheathing" and "decking" refer to the same thing — the OSB or plywood panels under your shingles. Cost is per sheet replaced.
What Drives the Cost
- Number of compromised sheets
- Standalone repair vs. during a full replacement
- Pitch and access difficulty
- Fixing the moisture source that caused the rot
When to Call a Roofer
Sagging, softness, or attic water stains indicate sheathing damage. Get an inspection — and if you're replacing the roof anyway, we inspect every sheet during tear-off.
How Beyond the Ladder Handles It
We replace only what's bad and address the cause so the new sheathing lasts.
Related Questions
OSB or plywood — which costs more?
Plywood is typically a bit more expensive than OSB. Both perform well when kept dry. We recommend based on your roof and budget.
Can sheathing be replaced without a full re-roof?
In small accessible areas, yes. But it's far cheaper to replace sheathing during a full tear-off when the roof is already open.