| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-wall ventilation structure securing fire protection and excellent in workability by nailing a furring strip and forming it by a material having fire protection performance. SOLUTION: An in-wall ventilation layer 4 is formed between an outer wall face material 1 stuck on a substrate face material 2 through a furring strip 3 and the substrate face material 2. At first, the outer wall face material 1 and a furring strip 3 is formed by a wood piece cement material into a plate material. The furring strip 3 is provided on the joint of adjacent outer wall face materials 1, 1. Nailing can be performed thereby to make workability good. In addition, since the furring strip 3 has fire protection performance, the spread of a fire can be prevented from the joint of the outer wall face materials. Thereby execution and fire protection are compatible and design does not limited to be suppressed at a low cost.
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