A Building Maintenance Unit is a permanent system that comes in various forms and applications. Common solutions in this category are overhead trollies (monorails), traversing roof cars, telescopic booms or a combination of the latter two. Suspended from the aforementioned, is a gondola which is fitted with a control box to operate the system. A BMU is an ideal solution to maintain tall and wide facades, because the gondola can move vertically as well as horizontally while hanging suspended.
Because it’s a permanent solution, the system only needs to be serviced and certified once a year. Although users still need to be trained properly, there is no installation knowledge required which lowers the risk of incidents happening.
This facade access system can be customized to meet specific demands of more complex buildings that have inward or outward sloping facades, twisting facades or facades with protruding elements for example. These customizations can include rotating booms, extending gondolas and the use of soft rope systems, among other things. Besides that, the machine can be made to blend into the design of the structure by hiding it from sight when in parked position. This way, the aesthetical value of the building is not affected.
Placing a BMU on an existing building is a big investment. But costs for workers are lower, so on the long run savings will be made maintaining a large facade area in comparison with using (multiple) Bosun’s chairs or suspended platform systems.