| 摘要 |
PROBLEM TO BE SOLVED: To provide a building wall body for retaining its strength under high temperature circumstances while enabling intra-body airflow through a portion supporting the weight of an upper floor. SOLUTION: The building wall body 11 comprises a wall body air duct 17 provided inside a heat insulating layer 15 for communicating an underfloor space with a hutch space. Supporting materials (an end floor joist 53 and a roll stopper 54) laid along the outer periphery of the building in the horizontal direction for supporting the weight of the upper floor and a plurality of spacers driven therein with connecting fittings are arranged in the midway of the wall body air duct 17 in the direction of the height. A communication passage 71 is formed by the supporting materials and the spacers. A lower floor side air duct portion 21 of the wall body air duct 17 is communicated with an upper floor side air duct portion 41 adjacent thereto via the communication passage 71 with the supporting materials as a boundary. The spacers are each formed of a heat resistant material which has less thermal contraction than a wood material and less heat conductivity than a metal. COPYRIGHT: (C)2006,JPO&NCIPI
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