OSHA: Relevant Regulations
OSHA has promulgated regulations to protect workers from the hazards associated with roof openings [29 CFR*1910 and 1926]. The OSHA General Industry Standard requires that “every skylight floor opening, and hole shall be guarded by a standard skylight screen or a fixed standard railing on all exposed sides” [29 CFR 1910.23(a)(4)]. Requirements for a standard skylight screen are given in 29 CFR 1910.23(e)(8), as follows:
Skylight screens shall be of such construction and mounting that they can withstand a load of at least 200 pounds applied perpendicularly at any one area on the screen. They shall also be of such construction and mounting that under ordinary loads or impacts, they will not deflect downward sufficiently to break the glass below. The construction shall be of grillwork with openings not more than 4 inches long or of slat work with openings not more than 2 inches wide with length unrestricted.
The OSHA Construction Standard addresses the hazards posted by skylight openings during construction:
Wherever there is danger of falling through a skylight opening, it shall be guarded by a fixed standard raling on all exposed sides or a cover capable of sustaining the weight of a 200 pound person [29 CFR 1926.500(b)(4) ].