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If you have a problem with rising water, there are six approaches you can take to preventing damage in future floods: elevate the building, block the water in the yard, seal the building, use materials that water won't hurt, and elevate appliances and systems.
A back-flow valve in the common sewer line should allow sewer water to flow from the house to the sewer system, but prevent flow toward the house. To provide best protection from a flooded sewer system, the valve should provide a good seal and operate automatically.
You can keep shallow flood water out of a slab-on-grade home using plastic sheeting supported by the wall of the building or on special stands away from the wall. This is an emergency protection measure that is more effective than using sandbags, but does require advance preparation.
If you protect a building with a floodwall, sealant, plastic wrap or any other barrier, you will need to pump water during floods.
Elevation provides the best protection for flood damage, short of relocating the house to an area that is less prone to flooding. Raising a structure does not remove it from the special flood hazard area (SFHA); therefore, it does not exempt the owner or the mortgage company from flood insurance mandates.
Use this score sheet to rate the efficiency of your kitchen – as it is now and with any planned modifications. It will help you design a more convenient and functional kitchen. Compare your “before” and “after” scores with the rating at the end of this fact sheet. (PDF Format Only)
Most floodproofing systems have openings that need to be closed and watertight during a flood.
Floodwalls and levees are self-supporting barriers to floodwater. They keep the building dry and protect it from, unequal water pressure on building walls, erosion at the foundation and damage by floating debris.
Sealing a building so water will not enter is called dry floodproofing. The interior spaces, equipment and contents of the building stay dry.
A floodwall is a self-supporting barrier to floodwater. It may look like a garden wall or privacy fence, but it has more internal reinforcing and a more substantial foundation.