1.- Alveolar ventilation system. Depopulation under the floor of the chamber aimed at preventing floor freezing, and that its expansion would result in damage to the foundation.
2.- Before floor. Cleaning floors and cardboard about 5cm alveolar absorb unprecedented irregularities.
3.- Asphalt. Formation of the vapor barrier by asphalt and fiberglass cast.
4.- Extruded polystyrene insulation boards. Thermal insulation. Options: polyurethane, extruded polystyrene.
5.- Polyethylene insulating sheet. Sheet of polyethylene to prevent water penetration of concrete setting.
6.- Floor. Final slab of concrete.
7.- Socket. 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.
Details of how the panel wall is recessed in the floor. Its bottom is devoid of the plate to break the thermal.