I need your comment on the choice of selecting
the foundation which build on clay soil, monolithic or stemwall. Will stemwall reduce
the cost by not having to cut out the clay and bring in fill? Also what is the different between
stemwall and monolithic? My buider first chose to cut out clay but later cancel that and change to stemwall. He said with stemwall the foundation will be elevated and more suitable for this project and cost effective becase we don't have to cut out the clay and bring in fill.