Slab on Grade
Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils
...site, or digging in, creating a partially subterranean rear wall to the property adds a lot of additional complication, potential failure points, and most importantly time and expense. In general we find that the public or those who only build once or infrequently, underestimate the additional costs of building on a si...