Crowning
What you need to know
Crowning is a type of warp where the center of the affected boards are higher than its edges(convex). It normally occurs when a previously cupped floor is sanded before it has dried to its equilibrium moisture content. Excessive moisture conditions such as flooding, leaks, excessive moisture in crawl spaces and basements will often cause a floor to cup. If the high edges of the cupped floor
Industry Standards
The National Wood Flooring Association states the following on page 8 of the 2018 Technical Publication C200, Problems, Causes and Cures:
Crowning
DEFINITION: A convex or crowned appearance of individual boards with the center of the board higher than the edges. This can also be a type of warp.
CAUSES: …..
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