Abstract: A heat insulation system of a building includes a plurality of interior walls surrounding an inner space of the building, a plurality of exterior walls constructed outside of the plurality of interior walls with certain distance therebetween. Further included are an air-flow zone defined by a space formed between the plurality of interior walls and the plurality of exterior walls, and a plurality of air-flow zone dividers dividing the air-flow zone into a plurality of air-flow blocks, where air-flow zone dividers of the plurality of air-flow zone dividers are placed appropriately so as to define each air-flow block of the plurality of air-flow blocks in accordance with facades of the building.

Abstract: The present invention relates to a system and a method for eliminating the dampness or moisture included in the incoming atmosphere(or air) with high temperature and humidity from outside into the underground storage facilities by condensing the moisture to water-drops. The present invention suggests an underground facility having a dehumidification system comprising an inside wall depart from a wall of the underground facility to inside area with a distance, a buffering space formed between the wall and the inside wall, so that the inside wall divide the buffering space and a room of the underground facility and, a ventilation means by which air can be circulated between the room and the buffering space. According to the present invention, it is not need to install any air conditioner or dehumidifier needing a expensive cost for equipment at first and consuming much electrical power and maintenance cost in usage.