Basement Drying >> How To Stop Mold Growth In Wet Flooded Basements

perform a soils analysis similar to that performed for levee construction.
The purpose is to determine whether the soils will support the floodwall and whether seepage or migration or water through the soil will be a problem. Construction, How To Stop Mold Growth In Wet Flooded Basements which begins with excavation for the foundation, varies according to the type of wall. The two main types of floodwalls are gravity walls and cantilever walls (see Figure 7-19). Both types resist overturning, which is the most common cause of floodwall failure, and displacement, but they do so in different ways. The gravity How To Stop Mold Growth In Wet Flooded Basements floodwall relies on its weight and mass, particularly the mass at its base, for stability. The shear weight of the materials used in its construction (usually solid concrete, alone or in combination with masonry) make it too heavy to be overturned or displaced How To Stop Mold Growth In Wet Flooded Basements by flood forces.
 
 NOTE
 A reinforced cast-inplace wall with a foundation at the proper How To Stop Mold Growth In Wet Flooded Basements depth provides an excellent barrier to seepage because it is constructed of a single, solid, water-resistant How To Stop Mold Growth In Wet Flooded Basements material. The reinforcement not only gives the wall strength but helps it resist cracking. Occasionally, floodwalls are built with a core of concrete block and a facing of brick. Even How To Stop Mold Growth In Wet Flooded Basements though the blocks are grouted, reinforced, and filled with concrete, experience has shown that this type How To Stop Mold Growth In Wet Flooded Basements of wall is neither as strong nor as resistant to leakage as cast-in-place concrete walls.
 
 Figure 7-19 How To Stop Mold Growth In Wet Flooded Basements Gravity and cantilever floodwalls Gravity floodwalls are relatively easy to design and construct. However, the size of the wall increases significantly with height, so as flood depths How To Stop Mold Growth In Wet Flooded Basements increase, a cantilever floodwall becomes How To Stop Mold Growth In Wet Flooded Basements more practical. A cantilever floodwall consists of a wall and footing constructed of cast-inplace concrete (similar to a foundation wall and How To Stop Mold Growth In Wet Flooded Basements footing for a house). The cantilever floodwall relies partly on the weight of the flood water and soil for stability. As shown in Figure 7-19, the "heel” of the wall (the portion of the footing on the flooded How To Stop Mold Growth In Wet Flooded Basements side) extends further than the "toe” (the portion of the footing on the protected side).
 
Through leverage, the pressure of water and soil on the heel helps counteract the overturning force of the How To Stop Mold Growth In Wet Flooded Basements flood water. Reinforcement of a cantilever wall consists of steel bars embedded in the concrete. Both masonry and cast-in-place cantilevered floodwalls can be How To Stop Mold Growth In Wet Flooded Basements faced with brick or stone or receive other decorative treatments that match or complement the exterior walls of a house (see Figure 7-20). odprone house has been severely damaged, How To Stop Mold Growth In Wet Flooded Basements because of flooding or any other cause, demolition can be a practical and effective retrofitting method. Demolition may also be practical for an undamaged house that, because of How To Stop Mold Growth In Wet Flooded Basements deterioration over time or for other reasons, is not worth retrofitting with any of the other methods How To Stop Mold Growth In Wet Flooded Basements described in this guide.
 
If you choose the demolition method, you will tear down your damaged house and either rebuild How To Stop Mold Growth In Wet Flooded Basements properly on the same property or move elsewhere, outside the floodplain. Depending on your choice of a site for your new house, this method can lower or even eliminate your flood insurance premiums.How To Stop Mold Growth In Wet Flooded Basements The How To Stop Mold Growth In Wet Flooded Basements demolition process involves disconnecting and capping utility lines at the damaged house, tearing the house down, removing debris and otherwise restoring the old site, and building or buying a new house. How To Stop Mold Growth In Wet Flooded Basements The most important considerations involve How To Stop Mold Growth In Wet Flooded Basements how badly your house has been damaged and your options for building or buying a new house. retrofitting method, demolition is more practical for severely damaged houses than for those with little or no How To Stop Mold Growth In Wet Flooded Basements damage.
 
 If a flood, fire, earthquake, hurricane, or other disaster has caused extensive damage to the interior and How To Stop Mold Growth In Wet Flooded Basements exterior of your house or left it structurally unsound, you will probably find that tearing the house down and starting over How To Stop Mold Growth In Wet Flooded Basements is easier than making all of the necessary repairs. Also, remember that a severely damaged house in the regulatory floodplain will almost surely be considered substantially How To Stop Mold Growth In Wet Flooded Basements damaged under your community’s floodplain management ordinance or law. Salvaging such a house would require not only repairing the damage but also elevating (including filling in a basement); How To Stop Mold Growth In Wet Flooded Basements wet floodproofing areas used only for parking, storage, or access; or relocating the house as described elsewhere in this guide. Rebuilding or Buying Another House How To Stop Mold Growth In Wet Flooded Basements Tearing down a house is the easy part of the demolition process.
 
 You must also buy or build another house elsewhere or rebuild somewhere on your How To Stop Mold Growth In Wet Flooded Basements existing property. Regardless of your decision, your goal is to greatly reduce or eliminate the potential for damage from floods, earthquakes, high winds, and other hazards. If you buy or build a house How To Stop Mold Growth In Wet Flooded Basements elsewhere, you’ll want to find a site that is outside the regulatory floodplain, ideally one that is well above the BFE. How To Stop Mold Growth In Wet Flooded Basements You should also consider the other hazards mentioned above. Check with your local officials about hazards in your community before you make your final decision. When you buy or build a house How To Stop Mold Growth In Wet Flooded Basements elsewhere, you need to think about what you should do with your old property.
 
Property that is entirely within the regulatory floodplain may be difficult to How To Stop Mold Growth In Wet Flooded Basements sell because of restrictions How To Stop Mold Growth In Wet Flooded Basements on its use. As explained in Chapter 2, some Federal programs provide grants to states and communities that they can use to buy floodprone houses and properties. State and local programs may also provide financial assistance. Check with your local officials about this. When buying or building a house elsewhere is prohibitively expensive, you may be able to rebuild on your existing property, How To Stop Mold Growth In Wet Flooded Basements either on the site of your old house or, preferably, How To Stop Mold Growth In Wet Flooded Basements on a portion of your property that is outside the regulatory floodplain. If you rebuild on the site of your old house, your community’s floodplain How To Stop Mold Growth In Wet Flooded Basements management ordinance or law will require that the lowest floor of your new house be at or above the Base Flood Elevation (BFE).
 
You can meet this requirement by building the new house on extended foundation walls or an open How To Stop Mold Growth In Wet Flooded Basements foundation (as As discussed under Financial Assistance for Retrofitting, in Chapter 2, the cost of demolishing a substantially damaged house may be an eligible flood insurance claim under Increased Cost of Compliance (ICC) coverage. described in Chapter 5) or, in How To Stop Mold Growth In Wet Flooded Basements some situations, on compacted fill dirt. A important disadvantage of this approach is that you may not have access to your house during floods. If your existing property includes How To Stop Mold Growth In Wet Flooded Basements a large enough area outside the regulatory floodplain, a better choice is to rebuild there. Building outside the floodplain gives you greater freedom to build the type of house you want. Also, because both the house and property are outside the floodplain, restricted access during flooding How To Stop Mold Growth In Wet Flooded Basements is less likely to be a problem.

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