| 摘要 |
PROBLEM TO BE SOLVED: To prevent a deterioration in heat insulation performance while sufficiently securing an area for anchoring such as nailing, in a building vacuum heat-insulating board constituted by covering a vacuum heat-insulating material with a synthetic resin foam. SOLUTION: In the building vacuum heat-insulating board 1 in which the vacuum heat-insulating material 3 is covered with the synthetic resin foam 5 such as a rigid urethane foam, the vacuum heat-insulating material 3 is formed in such a shape that four rectangular corners are cut off. In this case, the plurality of vacuum heat-insulating materials 3, the four rectangular corners of which are cut off, can also be arranged. A portion corresponding to only the expanded resin foam 5 around the vacuum heat-insulating material 3 serves as a fixing area for being fixed by an anchoring fitting. COPYRIGHT: (C)2010,JPO&INPIT
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