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We installed radiant heat on the subfloor, between 2x4 nailers and poured a gypcrete like material over it as a heat transfer. We did not let the gypcrete-like material completely cure and the floors started to cup, then they reversed and crowned, which is where we are now.

We also put this same flooring down in a closet, after things were dried/cured and we have no problem. We rushed the other flooring and want to know if ANYONE has any ideas if and how to correct our washboard floors. They are 8", 10" and 12" widths, heart pine.

We thought maybe some direct heat to the top of the boards, to force them to dry more and they may go back down, but heating a 16' board at the same time looks like the issue.

Thanks for whatever you might be able to offer - Bishop
 

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cupping is caused by moisture evaporating faster out one side than the other. you may have to take floors up, stack on hard surface and apply weight, they may with time flatten. have you talked to the people you got flooring from
 

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Crowned Floors

cupping is caused by moisture evaporating faster out one side than the other. you may have to take floors up, stack on hard surface and apply weight, they may with time flatten. have you talked to the people you got flooring from
Thanks for the suggestion, and that is what we may have to do, but the idea of applying heat to the crowned side, was to hope to draw out the moisture, having the boards return to flat. The floor company has been very supportive, but they have no suggestion, other than the usual ones...
 
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