06-04-2013, 01:39 AM
That form of warp is called a cup, if it were curved from top to bottom it would be a bow. In any even the inside of the panels is the part that has absorbed moisture, the convex side, so to correct that you would have to dampen the outside or find some way of getting the moisture out of the panels on the inside.
Regards
Arran
Regards
Arran