| 摘要 |
PURPOSE:To improve the work execution efficiency and the transport efficiency by covering the ceiling and the wall with a waterproof sheet, and erecting a bag inflated by pressure-filling the air inside a unit for building, so as to hold the ceiling of the waterproof sheet from the inside. CONSTITUTION:A unit 1 for building is manufactured and covered by a waterproof sheet 2. Then, inside the covered unit 1 for building, a bah 3 not inflated yet is put in, and a compression air is pressure-filled in from the entrance 31, inside the unit 1. The bag 3 inflated in such a way is erected between a floor member 14 and the ceiling of the waterproof sheet 2 to support the ceiling from the inside. As a result, the waterproof sheet 2, the wall, and the like get no damage, it can cope with the unit for construction of various heights, and the unit can be covered to prevent the permeation of rain water simply.
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