An extreme building suited for some of the most damaging conditions. These buildings are engineered to withstand the harshest fire and flood conditions. 8” x 16” block with widths of 4″or 6″, depending on design criteria. The vertical rebar for the first four courses of block is tied to the rebar mat and integral with the 8”-thick slab. We do not drill and dowel vertical rebar into our slab, as it is an inferior method of construction. The block walls are solid grout filled for the equivalent of a 4” or 6″ thick solid concrete wall. Roof framing can be either wood or welded steel.