Slab on Grade
Monolithic slab-on-grade foundations - Super insulated for LEED Homes & Passive House
...frost heave in your home. That's when freezing soil expands and pushes your foundation upwards, causing structural damage.
How it works: Instead of digging down deep below the natural frost line (which can be many feet in colder regions), an FPSF system uses rigid insulation. This insulation is installed vertically alo...
