Originally Posted by TromboneAl
Do you think this will be effective?
If using the fan to push more room air against the wall causes the wall's surface to warm up to something above the dew point of the air, then the water vapor won't become liquid right inside the wall covering and you might avoid mold. But if the wall's inner surface remains below the dew point of the room air, then causing more air flow over the wall might >increase< the amount of water on the wall.
Decreasing the relative humidity of the air inside the house is the best solution--it takes care of moisture on the walls as wel as in the closets and everywhere else. Reducing the RH can be done by:
- Reducing introducton of water into the air inside (no unvented combustion appliances, use stove vent fans, venting clothes driers outside, use bathroom fans when showering, etc).
- Mechanically removing water (as you are doing with a dehumidifier or with an air conditioner)
- Increasing the temperature of the air inside the house
- Ventilating on the (rare) occasions when air inside the house has more moisture than air outside.
It's great to see your posts, Al!