Replacing Rotted Roof Decking: When is it Time?
By Skyridge Ricky • March 28, 2026 • 9 min read
The scariest part of any roof replacement is what you can't see. Once we tear off the old shingles, we often find rotted roof decking (plywood or OSB) that has been slowly decaying for years due to tiny leaks. If we don't fix this, your new roof won't have a solid surface to nail into.
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Book a roof repair inspectionSigns of Decking Failure
If your roof feels 'spongy' when you walk on it, or if you see visible sagging between the rafters from inside your attic, your decking is likely compromised. In Utah, snow weight can actually cause rotted decking to collapse, which is why we include a 'decking inspection' in every Wasatch-Proof audit.
Wrapping it up
Solid decking is the foundation of a 50-year roof. If it's rotten, replace it!
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