| 摘要 |
PROBLEM TO BE SOLVED: To provide a fireproof structure of a building using a slate (corrugated sheet) as an external facing material, which can enhance fireproof performance of a joint section, considered to be a weak point of a conventional fireproof structure, by using a simple structure advantageous in terms of construction cost. SOLUTION: In this fireproof structure of the building using the slate (corrugated sheet), based on JIS A 5430, as the external facing material, an external facing bed material as a calcium silicate board with a thickness of 15 mm or more, which is set at 0.8 based on JIS type 2 or have equivalent physical properties, or a cemented excelsior board with a thickness of 20 mm or more and physical properties specified by JIS A 5404 is anchored to the outdoor side of horizontal furring strips which are installed at predetermined intervals in the structural skeleton of the building; a joint board, which is composed of a calcium silicate board with a thickness of 6 mm or more, set at 0.8 based on JIS type 2 or having equivalent physical properties, is anchored to the outdoor side of the joint section between the external facing bed materials; and the slate (corrugated sheet) is anchored onto the external facing bed material and the joint board. COPYRIGHT: (C)2008,JPO&INPIT
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