BMU Systems
A BMU is the permanent machine that carries people and equipment to every part of a façade. It is designed with the building, from the roof structure that supports it to the cradle that reaches the glass.
A building maintenance unit gives cleaning and maintenance teams safe, repeatable access to the façade. The machine travels on the roof, positions a jib over the elevation and lowers a cradle with operators, tools and materials. Typical uses are glass cleaning, sealant and panel repair, inspection and glazing replacement.
On towers with limited roof space, a monorail, davit or fixed-base system may achieve the same coverage with less roof equipment. Hauteur compares the options against the façade before recommending a machine.
Engineering considerations
01
Available track route, plant areas, parapets and the loads the slab can carry.
02
Jib length and slewing needed to cover set-backs, corners and canopies.
03
Length, capacity and controls matched to the cleaning and maintenance tasks.
04
How the cradle is kept close to the façade in wind on tall elevations.
05
Where the machine rests out of sight and out of the way of roof plant.
06
Inspection access, spare parts and maintenance over the life of the building.
Project evidence
At Dana Gas Egypt's building in New Cairo, Hauteur supplied and installed a roof car with a documented jib length of 18 metres, lowering a cradle down the terracotta and glass elevations.
Selected projects
Hauteur's portfolio of façade-access projects: monorails, roof cars, davits, fixed-base systems, custom cradles and special access across Egypt.
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Roof plan, typical sections and elevations, building height and number of floors, façade materials and any roof equipment or set-backs. Early drawings are enough to start system selection; details are refined as the design develops.
As early as possible — ideally during design development. Rails, sockets, anchors and roof loads affect the structure, the parapet and the roof finishes, and are far simpler to integrate before construction.
Yes. Hauteur surveys existing roofs and façades to propose a system that fits the structure as built, and also inspects and maintains existing access equipment.
Share the roof plan, elevations and building height. A Hauteur engineer will review the façade and recommend an access strategy.
A roof car travels along a guide rail around the roof and lowers a cradle from its jib to any drop on the façade.
A track fixed to the building carries a trolley and a powered cradle along the façade — horizontally under the roof edge, or vertically on articulated elevations.
The cradle is where the work happens. Its length, controls and suspension are chosen to suit the façade, the task and the system it hangs from.