Building in a flood plane…?
I have a project in Minnesota where the garage level (because of the flood plane) is two feet below historically high water mark. With our 3 1/2′ frost protected footings that puts the below grade foundation walls potentially below water. The home owner wants to have a heated slab for the garage/shop area, so the question is a ICF that uses expanded foam a smart choice? My understanding is that expanded foams, even though they are resistant to water, can absorb water. If thats the case what might be a better option…?
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