PURPOSE: To obtain a device for roofing work, which is simple on installing on a roof and make stable construction materials and tools on placing thereon.

CONSTITUTION: This device is composed of a base mounting constructive materials and tools, legs 12 provided at least at the four corners of the mounting base, and bases 5 equipped at the lower end of respective legs 12. The legs 12 are formed all to be of the same length and the bases 5 are rotatably fitted against respective legs 12 to all turn to the same direction.