Expansive clay / Green Building & Sustainable Home Renovation Information & Advice

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - how to build insulated frost protected shallow foundations (FPSF) on problem soils

...expansive clay and with significant localized potential for frost heave - Ecohome chose instead to build a pre-engineered frost protected shallow foundation with the Legalett form system.   Standard thickened edge footing slab on grade A typical basement foundation or slab on grade in a cold climate begins with a perim...