Mold grows and thrives in damp, moist environments. This means any space with wet or humid conditions provides the perfect home for mold spores to grow. Areas that have flooded and remain damp are the perfect example of conditions that can cause mold growth. If not addressed, mold can begin to grow in these areas within 24 to 48 hours. For this reason, it’s important to get the area cleaned up and dried out after a flood.