RE: padding bonded to wood subfloor, need help please
I've seen many a rebond pad disentegrate and stick to the floor because of moisture as well. Some of the new solid foam pads might be better, but only time will tell. Certainly, if pets or children are present, a pad with a moisture barrier is recommended. It's also not a bad idea to seal any areas where the pad was stuck to the floor with Kilz or similar primer, just in case the moisture was caused by a pet accident.