Originally Posted by Mike6928
I have a 2017 Cottage that is parked under a roof. I have found that when the heat is on I get moisture on the rear walls of the closets that are located on the outside walls of the camper. We are already finding mold on the walls that are involved. If I leave the closet doors open there does not seem to be as much moisture. I think it is obvious that the insulation in the exterior walls is not sufficient to prevent this condition. I am interested in hearing from anyone else who is having a similar problem and if they have found a remedy. Thanks for imput.
This is a major issue on boats too. The last boat I owned had vent's at bottom and top of closet and cabinet doors so air freely circulated through them.
You might consider adding louvered vents at top and bottom of cabinet doors. Check out marine supply outlets as they carry a wide variety. Here's one example:
If you don't want to put in a metal vent, one could simply remove the door and with a Forstner Bit, drill a line of holes at bottom and top of the door. The Forstner Bit creates a really "clean" hole with no splintering.
This also would help with under sink doors as well as any that cover the water pump and filter during winter months.
Mold, Mildew, and Dry Rot are constant companions to boat owners. Other than the fact they don't float on water, RV's are subject to the same issues caused by dampness.