LIGHTHOUSELIGHTHOUSE IN AARHUS
Sustainable materials and ingenious planning open up new dimensions on Denmark’s tallest residential building. The new residential building is located in the immediate vicinity of Aarhus Bay and is visibly inspired by the reflections of the water: From the ground plan of the building – a rhombus with two rounded corners – to the façade and the roof, the motif of rising and falling waves is echoed.
LIGHTHOUSE IN AARHUS
Not far from the centre of the Danish port city of Aarhus, a new district has been created on the site of a former container terminal. “Aarhus Ø” offers plenty of modern living space and exciting architecture. With 400 new flats, “The Lighthouse” is making a significant contribution to the expansion of living space and lives up to its name: located on the south-eastern shore of the harbour district, Denmark’s tallest residential building rises up like a lighthouse.
The design by 3xn architects (https://3xn.com/) from Copenhagen combines an open, modern design with an elegant structure and a slim profile. The project thus fits in with the progressive architecture typical of Aarhus.
Another key element is the creation of an open space that promotes community and interaction:
A special highlight attracts not only residents but also guests from outside to the top floor of the Lighthouse: the Bravn Restaurant offers visitors a view of the sea in addition to fine dining. A roof terrace at a lofty height of 142 metres also offers guests with a head for heights a view of the city and harbour.
The complex yet light-looking roof shape plays the main role in the direction of the building: a curved ridge, which runs from the highest point to the diagonally opposite low end, decisively defines the shape of the roof and directs the view skywards.
LIGHTHOUSE IN AARHUS
With the help of software and the collected data, the design of the roof could be transferred into a technical drawing. If you look at the part of the building that transitions from the façade of the roof terrace to the roof, you immediately notice that the standing seam profiles do not run vertically, but diagonally. What appears to be a stylistic element to the observer actually has practical reasons: The standing seam profiles are arranged from the ridge to the eaves in such a way that rainwater can easily run off.
„Our collaboration with Kalzip ensured that both the architectural vision and functional requirements were met at the top of the Lighthouse. The system’s versatile design and ease of installation allowed us to realise a sleek, durable and sustainable design – while meeting the project schedule. The Kalzip team’s attention to detail, responsiveness and commitment to quality made it possible to seamlessly integrate their products into the overall project.“
— Jesper Bork, Partner, Studio Director, Architect MAA at 3XN
The plans drawn up were used in Koblenz production as a guideline for how the blanks had to be processed in order to achieve the correct roof shape in Aarhus. In order to realise the curved transition from the façade to the roof, each individual standing seam sheet had to be bent and twisted individually. Laying the complex, 3D-curved Kalzip XT membranes with a certain angle of inclination proved to be particularly tricky during installation on site. Despite the flexible substructure, which offered a little room for manoeuvre during installation, and the clear construction plans, construction was halted for a short time, as Robert Thiebes reports: “In this project, there was only a few centimetres of room to move between the profiled sheets, which decided whether the next sheet would fit in or be wedged. In order to find the best possible solution to the problem, we travelled to the construction site, quickly identified the error and instructed the employees accordingly.” The project proves it: Even smaller building projects with complex organic shapes can be implemented with Kalzip systems and the know-how of the aluminium experts from Koblenz to the satisfaction of all those involved.
The Kalzip roof system fulfils and exceeds all requirements:
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Year-end dates / Koblenz plant (Germany)
End of production:
December 12, 2025
Last return of goods:
by December 13, 2025
Last shipment:
December 15, 2025
Company holidays:
December 22, 2025 through January 2, 2026
Resumption of production/shipping:
January 5, 2026
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Kalzip wishes you a Merry Christmas and a Happy New Year.
