Do not sand a cupped floor.
Wood floor cupping and crowning.
You also don t want to assume your floor has already failed.
For example if the cupping happened due to humidity from an especially wet summer and you sanded down the cupped areas when the air dries out the wood can warp the other way causing crowning.
How to fix a crowned hardwood floor.
If the floorboards absorb humidity from the air or moisture from the subfloor they can swell and.
Up next hardwood floors moisture content hardwood floor layout laying hardwood floors part 3 of 8.
Here s how that happens.
Sanding a hardwood floor while it is still cupped will result in a problem called crowning.
Crowning can also be caused by previous floor cupping.
This video is about cupping and crowning.
It should be noted that very slight cupping or crowning can take place within normal humidity changes such as with those of the changing seasons and periodically.
Like cupping wood floor crowning happens because the boards are exposed to a moisture imbalance over an extended period of time.
Crowning is typically a problem that is a direct result of cupping.
A crowned wood floor is another problem that is usually the result of a moisture issue.
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