Mold is a type of fungi that thrives in moist environments. Mold spores are found in the air and can enter a building through open doors, windows, or ventilation systems. Once mold spores land on a wet or damp surface, they begin to grow.
Mold growth is often the result of water leaks or flooding. If water leaks are not promptly cleaned up and the area is not properly dried, mold can begin to grow within 24 to 48 hours.