SLAB HEAT STORAGE 1

[rufcut]

For experimental purposes, I'd consider useing perlite under a primary slab that has a 'foaming agent' in the mix to reduce heat loss. On top of this would be poured a more conventional slab. The perimeter of the project would the be treated with rigid foam. We're not held to code for projects of 100 sq ft or less and am interested in cost savings. If this wouldn't work ... what might? Thanks

 

[jheidt2543]

Why not just use a rigid insulation board like DOW-SM? Then you would have to experiment with the concrete.

 

[boo1]

"There is an alternative to frost-line deep footings in colder climates for heated buildings without basements-a resource-efficient, frost protected shallow foundation (FPSF), which only goes 12" to 16" below grade."

See:

http://www.pbf.org/Archive/BuildingGreenFoundations/BuildingGreenFoundations.htm

 

[jheidt2543]

boo1,

Very interesting article on FPSF.