I'll try blocking of the gap in the front door somehow. My worry is that this part of the building can run cold at times (for certain manufacturing processes) and, though the gap isn't huge, that cooling could be the source of the bulk of the warping. This is the first time I've heard of applying Wolfbite; I'll look into it.

I would think that the bed being overheated would result in it being hard to take prints off the bed, not the opposite.