Hello from spanky third, I am cleaning a doublewide mobile home that my tenants left pretty dirty. I noticed that the walls and even over the doorways are sweating pretty bad. I do not have any vents on the roof and the ones around the roof eaves are fake. The area that is sweating is the living room & kitchen/dining room. Both have the high cathedral ceilings with probably no attic space. One bedroom has the same high ceilings but there is no sweating. Wonder why certain rooms are sweating? If I put vents on the roof it seems that only the rooms with the low ceilings will benefit because they do have more attic space. Please provide your helpful suggestions as to what might be causing this and what I can do to correct the problem. Thanks spanky third

Depending on your Geo the insulation may be inadequate. And nothing can stop that short of re insulating. A roof vent will help and also a vapor barrier paint.

Mobile homes are tough in this area. Some are impossible short of tearing off a roof and walls.