| 摘要 |
PROBLEM TO BE SOLVED: To prevent the stain and damage to a roof substrate or the like even when a feet project from a treadboard by stretching a curing sheet between a plurality of the treadboards connected from a rope at substantially constant intervals so as to be mutually parallel. SOLUTION: Synthetic resin- or cloth-made curing sheets 4, 4 making both sides cylindrical are stretched between a plurality of treadboards 2, 2,... connected by two ropes 3, 3 at substantially constant intervals so as to be mutually parallel. The treadboard 2 is formed of an aluminum plate-like body comprising a set face 21 set along a roof face Y, a step face 22 mounting the feet of a worker, and a kick face 23 connecting the set face 21 and the treadboard 22. A rope insertion hole 24 communicating with the step face 22 and the kick face 23 providing a slip stopper is provided, a synthetic resin-made pipe is fitted in the rope insertion hole 24, and the damage of the inserting rope 3 is prevented. In addition, a hook is attached to one end of the rope 3 inserted in the treadboard 2, and used in attaching to a roof face Y.
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