Protecting Your Home from Flooding
One way to protect a home and its contents from flood damage is to seal the house so that flood waters cannot flow or seep in. It is called “dry flood proofing,” and encompasses a variety of measures, according to the Federal Emergency Management Agency (FEMA). They include:
• Applying a waterproof coating or membrane to the exterior walls of the building.
• Installing watertight shields over doors, windows and other openings.
• Anchoring the building so that it resists floatation.
• Installing backflow valves in sanitary and storm sewer lines.
• Raising utility system components, machinery and other pieces of equipment above the flood level.
• Anchoring fuel tanks and other storage tanks to prevent flotation.
• Installing a sump pump and foundation drain system.
• Strengthening walls so that they can withstand the pressures of flood waters and the impact of debris from a flood.
According to FEMA, flood proofing is appropriate primarily for slab-on-grade buildings with concrete or solid masonry walls. Concrete and masonry are easier to seal, more resistant to flood damage, and stronger than other conventional construction materials.
Check with your local building inspector for applicable regulations concerning flood proofing.