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.

Slab on grade floors tend to have fewer air leaks than wood frame floors although plumbing penetrations must be sealed. Super insulated slab foundations by at least 2 feet. This material is a dimpled 24 mil high density polyethylene that provides wall and under slab moisture control for all types of foundations and isolates living spaces from floors that otherwise can become damp. 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.

If the foundation wall is mostly below grade a well can be installed. It s better to block out crawl space vents in the foundation wall where they will not interfere with insulation. To prevent voids under neath the foam which might cause it to deflect we take extra care to level the compacted gravel.