Flood Prevention for Houses

Resistant Materials

• If you are in the building process, the materials you choose could help prevent flooding. Flood-resistant flooring materials include concrete, ceramic tile, vinyl and decay-resistant lumber. Walls composed of concrete, brick or stone help keep water out of your home. Gravel fill provides an alternative to traditional driveway materials and helps reduce runoff.

Grading

• Regrading the land close to your home can also prevent flooding. Add dirt to make a slope that directs water away from your foundation. To be effective, you need a 6-inch downward slope for the 10 feet of land that is closest to your foundation. You can also make your own drains to prevent flooding. Small trenches lead to a larger trench at the edge of your land. Underground piping can also help direct water to the larger trench. A masonry fence can be erected if you fear flooding from a neighbor's runoff.

Gutters

• Gutters provide an escape route for any accumulated rainwater on the roof. Make sure the gutters take the water away from the house. A sloped leader attached to each gutter allows water to be redirected 10 feet away from the home's foundation. Water can also be redirected to a catch basin that will hold dozens of gallons of water at a time. Be sure to keep your gutters clean so they can do their job properly.

Inspection

• Stay proactive by having routine inspections to identify potential flood hazards. Have a contractor check your roof for any weak spots. Hidden moisture meters are available that allow you to check floors, walls and ceilings for unseen moisture issues. Check for water stains or mold spots that are indicative of potential flooding if the problem is not corrected.

Sewer Backflow Valves

• Flooding can cause more than just water damage. Sometimes flooding causes sewage to go back into buildings from the drainpipes. Sewage backflow valves help block drainage pipes to prevent a return flow of sewage. A flap or check valve permits flow from fixtures to go out of your home but automatically close when the flow goes in the opposite direction. Having a licensed plumber install backflow valves will prevent this additional type of flooding in your home.

Sandbags

• If flooding is imminent, your last line of defense is sandbags. Add hundreds of sandbags around your home. The sand will help soak up the water and keep it from entering your home.