we are putting in a modular home 68X28 and its going on a slab, the slab will be sitting on heavy soil with a clay base about 1' down, my question is should I put down sand on top after I have my site level or can I pour the slab on top of the clay base?
and my other question is there will be no weight bearing on the edge of the slab so do I need a footing or just a floating slab?
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