FLOOR INSULATION
  1.- Depopulation under the floor of the chamber aimed at preventing floor freezing, and that its expansion would result in damage to the foundation.
  2.- Cleaning floors and cardboard about 5cm alveolar absorb unprecedented irregularities.
  3.- Formation of the vapor barrier by asphalt and fiberglass cast.
  4.- Thermal insulation. Options: polyurethane, extruded polystyrene.
   5.- Sheet of polyethylene to prevent water penetration of concrete setting.
   6.- Final slab of concrete.
   7.- Gas tightness. For controlled atmosphere and prevent the escape of gases, the galvanized steel with polyester is impervious to gas.

The rest of the system is sealed with a fungicide.
   Alveolar ventilation system. Before floor. Asphalt.

Extruded polystyrene insulation boards.

Polyethylene insulating sheet.

Floor. Socket.

Details of how the panel wall is recessed in the floor. Its bottom is devoid of the plate to break the thermal.