| 摘要 |
PROBLEM TO BE SOLVED: To provide a covering wall structure and a building improved in fire resistance without hindering the movement of air in a hollow layer in the building having the hollow layer on the indoor side of a heat insulating material. SOLUTION: A covering section facing a communicating part communicating with the hollow layer of an external wall surface part is improved in fire resisting performance in comparison with the other covering section. As a means for improving the fire resisting performance, a fire resistive reinforcing material is provided on the outdoor side or indoor side of the heat insulating material of the covering section, for instance, or a nonflammable or noncombustible heat insulating material can be used as the heat insulating material of the covering section. Plywood, a noncombustible plate, a noncombustible mesh, or the like can be used as the fire resistive reinforcing material. An external facing material improved in fire resistance may be used as an external facing material of the covering section. The fire resisting performance can be further improved by providing a partition material in the hollow layer or at the communicating part. COPYRIGHT: (C)2005,JPO&NCIPI
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