Balustrades, Barriers and Fall Protection in Buildings

About this course.

Barriers matter because falls from height are a leading cause of serious injury and death in and around buildings, and a permanent barrier is frequently the only thing standing between a person and a dangerous edge. The National Construction Code, developed by the Australian Building Codes Board (ABCB), requires barriers to be provided wherever people using a building could fall a distance great enough to injure them — at the edges of balconies, decks, verandahs and roofs used by people, alongside stairs, ramps and their landings, at mezzanines and raised floors, around openings and voids, and generally wherever there is a change in level that presents a fall hazard. This module explains that role in concept; the specific triggers and dimensions live in the current Code, which practitioners must consult.

The human reality behind barriers is stark and worth keeping in mind, because it is easy to treat guarding as a routine detail rather than a life-safety element. A fall from even a modest height onto a hard surface can cause serious injury; a fall from a balcony, a stair or a rooftop can be fatal. Unlike many building failures, a barrier failure tends to happen suddenly and to a person who has done nothing wrong — a child leaning on a balustrade, an adult resting against a balcony edge, someone stumbling on a stair. Because the barrier is often the last line of defence, and because the people it protects are relying on it without thinking about it, the standard expected of barriers is high. This is not an area where "near enough" is acceptable: a barrier either reliably prevents a fall or it does not, and the difference can be measured in lives.