| 摘要 |
PROBLEM TO BE SOLVED: To provide the heat-insulating airtight structure of the connecting section of beams, in which airtightness can be ensured surely by the simple execution of works, in the heat-insulating airtight structure of a building such as a residence, particularly the connecting section of the beams orthogonal at the outside angle section of the building from the outdoor side. SOLUTION: Peripheral heat-insulating materials 3, 4 are arranged so as to cover the indoor side faces of the peripheral beams 1, 2, airtight sheets 7, 9 are stuck fast and arranged so as to cover the indoor side faces 3a, 4a of the peripheral heat- insulating materials 3, 4, the underside 5a of a tabular member 5 and indoor side faces 6a, 8a in the upper sections of interior-wall frames 6, 8 and an airtight cover 10 in which two sheet adhesive surfaces 10a, 10b fast stuck on the indoor side faces 7a, 9a of the airtight sheets 7, 9 and a top-face adhesive surface 10c fast stuck on the underside 5a of the tabular member 5 are formed integrally is arranged at the crossed section C of the airtight sheets 7, 9. The airtight cover 10 is formed in length in which sections up to the lower end sections of the airtight sheets 7, 9 are covered. A ceiling cradling 17 and interior-wall runners 16, 18 are arranged in place of the interior-wall frames 6, 8.
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