Being from the South, I am not familiar with this type construction. I assume the deep foundation walls are so that the footers are below the frost line? The areas inside the foundation walls will be backfilled to the floor level and the concrete floor poured on top? Here we would just use a simple monolithic slab foundation. Great work and very interesting to watch. Will the building walls be stud construction or post-and-beam?
Being from Virginia where our footers are 16" below the surface I was stunned during my visit last month when I saw how deep the footers had to be to get below the frost line.
Now we know why my visits are in spring, summer and fall.
