Mold thrives in damp, humid conditions:
- Bathrooms with poor ventilation. Install an exhaust fan if possible.
- Leaky water pipes. Repair them immediately.
- Roof leaks. Repair them right away.
- Flood aftermath. Repair as soon as possible.
- Clothes dryers and exhaust fans that vent under the house or back into the room. Vent them to the outside.
Help discourage mold growth by following these tips:
- Install a dehumidifier in chronically moist rooms.
- Don’t carpet rooms that stay damp.
- Insulate pipes and other cold surfaces to discourage condensation.
- Install storm windows to eliminate condensation on glass.
- Cover crawlspace dirt with plastic and ensure that the area is well ventilated.
* From Janet Wickell, former About.com Guide
