温暖地における袋入り断熱材による充填断熱工法の隙間量の定量化に関する基礎的研究

概要

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Since the origin of the wooden house in Japan is a cold region, a constructor has the low consciousness to high air-tightness and performance thermal insulation of a house in warm areas, such as the Kyushu region. Moreover, in a warm area, the constructor does not recognize the danger of openings by the reasons of that the heat insulation construction according to the standard specifications of a wooden house is troublesome, becoming more expensive than the conventional construction cost, costing time and a labor. It was found, by means of field survey, that house wrapping sheets, vapor barriers, air barriers and insulating materials were not installed closely and many openings were brought about. When indoor wet air flows into a wall through these openings, dew condensation may occur inside a wall and wet air may reduce the durability and the safety of a structure object. Therefore, while clarifying importance of the airtight construction in the warm area, it is important for the danger of openings which generates internal condensation to be well-known, and to educate it at a constructor. It aims at clarifying importance of the airtight construction in the warm area in this research. The model experiment was conducted in order to solve an air diffusion phenomenon when differential pressure is minute.
2006-05-30