Patent ID: 7354025

Claim:
A system in combination comprising: a corrugated roof defining a slope angle and comprising at least one pair of longitudinally-extending valleys spaced in a parallel relation and extending at an angle substantially equal to the slope angle; one or more roof scaffold brackets, each roof scaffold bracket comprising: a first arm; two support assemblies disposed at or near the respective end portions of the first arm for supporting the first arm relative to the roof, each assembly comprising: two spaced, parallel longitudinally-extending members lying in the respective valleys of the corrugated roof, wherein the members extend at an angle substantially equal to the slope angle of the corrugated roof, and wherein the lying positions of the members in the respective valleys of the corrugated roof substantially prevent relative movement between the roof scaffold bracket and the corrugated roof in a direction transverse to the longitudinal axes of the members; and means for attaching the members to the first arm; a second arm pivotally attached to the first arm; and a third arm attached to the first arm and to the second arm; and one or more planks at least partially supported by the respective second arms of the one or more roof scaffold brackets.