I bought our house 6 years ago and before we moved in I had an epoxy coating applied to the garage floor. The idea was that it would make cleaning easier and it does. The unintended consequence was that during the wet months, which are plentiful in Seattle, the water tracked in by our cars sits on top of the floor instead of soaking through an unsealed floor. After a while, moisture collects on the walls and ceilings and eventually turns to mold. The whole garage is finished and I am assuming that there is no insulation in the walls so as the temp drops outside the moisture collects on the painted drywall. Heating the 3 car garage is costly to say the least. I doubt that ventilation would help as the humidity outside generally is as high or higher than on the inside. Any suggestions?

RE: Overhead garage door opener Model 990 (screw drive) I have a garage door opener that when activated, always stops in a certain spot and won't open up any higher. What do you think is the problem?