Hi! Thanks for help here! I am attempting to redo my bedroom myself to save some $$. I want to repaint the room, but have had issues in the past about mold growing on my 2 outside walls. It is better than it was - after we replaced the roof and windows, and renewed the insulation. Still, mold does tend to come now and then. Like if u leave something against the wall, or have a bag next to the wall, we can get a black rash of mold. I am hoping running a dehumidifier will help. My plan is to use Kilz as a primer, but I am concerned to put time & $ into painting the room, if there is a way to do it better to prevent mold.