| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-insulating construction method, which can prevent wall internal dew condensation and breathe as earth wall with high heat insulating property and connects to attainment of a 100-year or 200-year long-lived dwelling house. SOLUTION: The intercolumnar heat-insulating construction method 1 having a ventilation layer 35 using ventilation passages 12 and 22 extending through a foundation 11 or a girth 21 mainly comprises: an interior facing material 51 for ensuring airtightness, the material having high moisture absorbing and releasing performance and low moisture permeation resistance; a heat insulating material 30 such as a rock wool board or glass wool board; a ventilation layer 35; and an exterior facing material 50 in order from the living room side. With respect to the relation of the interior facing material 51 and the heat insulating material 30, the interior facing material 51 is combined with the heat insulating material 30 lower in moisture permeation resistance value than the facing material 51, whereby moisture is prevented from being collected within the heating insulating material 30. According to this structure, the intercolumnar heat-insulating construction method 1 can breathe as earth wall with high heat insulating property while preventing winter-type wall internal dew condensation. COPYRIGHT: (C)2009,JPO&INPIT
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