Super Insulated Slab Foundation

Concrete is one of the most conductive materials we build with and there is no greater heat loss in a slab on grad foundation than at the edge.

Super insulated slab foundation.

Super insulated slab foundations by at least 2 feet. Super insulated slab foundations a thick layer of foam on a bed of compacted gravel supports the building prevents frost damage and keeps the heat inside by alan gibson. Super insulated slab foundations a thick layer of foam on a bed of compacted gravel supports the building prevents frost damage and keeps the heat inside article by jlc. In colder climates achieving the necessary r value below a slab floor requires between 8 and 10 inches of expensive extruded polystyrene or high density expanded.

To prevent voids under neath the foam which might cause it to deflect we take extra care to level the compacted gravel. Alternatively we ve used a 11 2 inch layer of flowable fill a thin aerated concrete mix with sand aggregate to true the surface. If the foundation wall is mostly below grade a well can be installed.