Although glass panes used for high-rise buildings are thick and strong, extreme weather conditions and other factors can easily damage or crack a panel, in which case the glass panel needs to be replaced.
A decent sized glass panel weighs quite a lot, so installing or replacing a window of a glass facade often requires heavy duty equipment. If the glass panels can’t be transported inside the building and a crane can’t reach the level where glass replacement is needed, another solution is using the already installed Building Maintenance Unit (BMU).
Using a BMU for glass replacement
A Glass Replacement Unit (GRU) consists of a winch incorporated in the BMU with wire rope running from the base via pulleys to the end of the jib. A snap-hook is attached to the wire rope and is suspended in front (or at the back) of the gondola. The hook can carry various tools, including a special suction tool that can hold heavy glass panels. Equipping a BMU with a GRU facilitates easy glass replacement at any height and for any size of glass panel.