Abstract: At approximately 11:30 a.m. on December 8, 2004, Employee #1, a laborer, who had only been working for a construction company for one month, was laying out sheets of plywood sheathing on the 2 by 6 feet nominal roof joists of a flat roof. The employer specializes in nonresidential wood frame construction. In order to complete the work quickly Employee #1 and a coworker, under the direction of a supervisor, began installing only whole pieces of plywood measuring approximately 4 by 8 feet. Because the plywood did not fit the roof area precisely, holes and gaps were left in various areas. In one particular spot a gap, measuring approximately two inches, was left at the end of one of the pieces of plywood which was tacked down with a few nails. As Employee #1 and the coworker were beginning to install smaller pieces of plywood to fill the gaps, Employee #1 stepped on the portion of the plywood with the two-inch gap. The gap came loose from its securing nails, causing Employee #1 to fall 15 feet 9 inches to a cement slab below. Employee #1 was hospitalized and treated for multiple fractures. Employee #1 had only been employed by the employer for approximately one month.