It was a problem with condensation for the vent system for a mobile home. The return air was next to the bathroom and was pulling up moisture through the floor. This is all because the neoprene tarp that was originally under the trailer was cut away when the flood waters came up and got into it but not into the house. A guy went there and said he could cut it away tarp to get rid of the water and then he put chicken wire holding regular insulation to the floor. Any insulation touching where the vents were condensation absorbed the moisture and ruined the floor. To fix it all the chicken wire and insulation had to be removed that the other guy did a “good job” with. It was well done just the wrong thing to do. The insulation for a trailers tarp is attached to the tarp and not to the floor because of sweating. Then I had to lift the trailer slowly but surely and loosely put a new tarp under it on top of the supports and then used spray adhesion to attach the insulation to the tarp and then pinned it all back up. While it was open I also added a layer of ductwork insulation to the vent system since it was bare to further insulate things. The floor in a straight line along the vent was bad and under the return air and the bathroom. The bathroom needed everything out and put back in, toilet, vanity, and shower. Took me 4 days with one helper.