| 摘要 |
PROBLEM TO BE SOLVED: To sharply reduce a construction cost by efficiently constructing a roof structure while securing safety. SOLUTION: A roof structure 2 is installed so as to extend in the horizontal direction in a state of supporting an upper edge part in a top part of a rear column 51 to construct a first row base body row N1. Then, after supporting a lower edge part by a temporary stand 3 by pulling up the lower edge part of the first row base body row N1, a second row base body row N2 is constructed similarly to the first row base body row N1, the second row base body row N2 is connected to the first row base body row N1, such a base body row is constructed up to a seventh row base body row N7 while moving the temporary stand 3, and an eighth row base body row N8 is constructed in a state of pulling up the seventh row base body row N7 up to an almost top part position of a front column 52 to be connected to the seventh row base body row N7 to install the roof structure 2 on a building 5.
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