Slab on Grade
how to build a slab-on-grade on standard soil
...frost-protected shallow foundation), the following is a step-by-step walk though of a thickened-edge slab floor we built. XPS or EPS high-density foam is typically used under concrete slab floors, in this case we used Rockwool mineral fiber insulation ( formerly known as Roxul) .
Note: Engineers at Rockwool could not...