Air circulation system and air flow elements therefor

Abstract

A network of adjacent aggregate containing mesh bags provides structural support to the slab or floor of a building. The network, encased in a sheath of plastic film, also functions as a path for air to be directed by a blower. The openings within the network are filled with gravel, sand or earth packs. At the perimeter of the network an air return system leads to the interior of the building. Thus, the blower can circulate air from the building interior through the network and air return system and back into the interior. Air circulating in the network can undergo heat exchange through the plastic film at the interfaces of the slab, the packs, and the underlying ground. Peripheral ground insulation minimizes lateral heat transfer. Preferably the aggregate containing mesh bags have indexing means to indicate their respective heights from above as they rest on a supportive planar surface.

Dependencies are inferred from the claim text.