Like cupping wood floor crowning happens because the boards are exposed to a moisture imbalance over an extended period of time.
Wood floor cupping and crowning.
How to fix a crowned hardwood floor.
You also don t want to assume your floor has already failed.
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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.
Wood floor crowning is the opposite of cupping and happens when the center of the board is higher than the edges.
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.
A crowned wood floor is another problem that is usually the result of a moisture issue.
Cupping and crowning are two terms used in the hardwood flooring industry to describe the reaction wood floors experience when there are problems with moisture levels in the home.
Crowning is typically a problem that is a direct result of cupping.
Do not sand a cupped floor.
Up next hardwood floors moisture content hardwood floor layout laying hardwood floors part 3 of 8.
Here s how that happens.
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.