...prevent frost heave, and given that frost forms on a 45 degree angle from the surface, that skirt can have as little as a 2% slope all the way up to being compl...
...frost walls or stem walls to get below the frost line that we seem to have forgotten why we do that, which is simply using 'dirt' as insulation. A frost protect...
...frost walls is to get below the frost line, and you can accomplish the same thing a lot easier and cheaper by just doing a slab on grade with a perimeter skirt ...
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