To execute tiling works safely requiring no need for special labor- hours and cost only by simple assembly works.

In the fall preventive jig, a support columns 1 having a plurality of fixing sections 4, by which shielding bodies (such as ropes, net bodies, etc.) are stretched, is erected and installed from a substrate 3, and fitting legs 2a, 2b are projected on both sides of the substrate 3 respectively towards a lower section. Two pairs of equipments, in which the fall preventive jigs are fitted at the front ends of ladders 7, are mounted, and leant on both sides of the edge of the eaves of a roof 8 and the shielding bodies such as nets, the ropes, etc., are stretched, thus safely preventing a fall from the roof in tiling works simply.