I have recently installed (properly) Brazilian Koa 5" Prefinished Bellawood flooring that cupped within a month. Cupping is consistant throughout the flooring. Flooring was installed properly with vapor barrior underlayment, over a dry basement. Flooring acclimated for a month in the air conditioned house prior to install. Lumber Liquidators has tried to blame everyone except their flooring. The wood used is very oily (like teak), I believe the cupping occurred because the floor was prefinished it could not dry out evenly and the varnished side caused the cupping. Anyone have an answer??

I am thinking of getting some of the same 5 inch from lumber liquidators but possibly mohogany instead of koa but this concerns me.I have cupped floors now and had planned on replacing with 5 inch bellawood but maybe not after hearing this.Mine would be in the kitchen, dinning room and den.
Did you figure out the problem?Thanks