Satisfies the requirements of OSHA. Standard self-closing and latching gate feature ensures that the opening is protected at all times. Non-penetrating attachment attaches directly to the roof hatch capflashing. Fits all brands of roof hatches with capflashing. Light-weight design can be easily moved to the roof level. Available in a variety of sizes to accommodate any roof opening and can be easily installed on new or existing hatches. High visibility safety yellow color.