What are 3 things that can be done to mitigate or prevent damage from flooding?

Seal basement walls with waterproofing compounds to prevent leaks. Make sure that the floor drains are free of obstructions. Vents are small permanent openings that allow flood water to flow freely through an enclosure, such as a mezzanine or garage. Many people don't know this, but most homeowners insurance policies cover water damage caused by an overflowing sink or bathtub, but not flood damage caused by storms, hurricanes, or other natural disasters.