Slab on Grade
Raft slabs - how to build insulated frost protected shallow foundations (FPSF) on problem soils
...sites are simply not suitable for a standard slab-on-grade foundation with a thickened-edge footing without first preparing the site with extensive and costly soil remediation. Opting for a raft slab in such conditions can be a much cheaper option.
A raft slab is a type of frost-protected shallow foundation, or slab-o...
