Quote Originally Posted by Will_P View Post
The only time I have seen plywood warp in a shop was when moisture got involved. My buddy's shop would condensate so bad that the floor and the walls would be wet. He installed a vent fan in the attic part on a timer, it kicks on twice a day for 15 minutes each time. He no longer has an issue wth the condensation but his plywood has warped.
When they poured the slab did the concrete guys install a vapor barrier, plastic sheeting under the slab?