A foundation anchors your house to the earth, holding it up and, just as importantly, holding it down. Surprisingly, houses are as likely to blow away in a windstorm, as they are to sink into the ground. But foundations do more than just hold a house: they must resist water, ice, fungus, insects, and soil gases, and they have to stand up to soil pressures that can exert far more force than the weight of the house itself. Get advice from a fellow do it youselfer on how to choose the right foundation for your needs, old technology or new technology or just adding a French drain.
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