Roof-Top Office Sanichaufer


Is the extension of the company headquarters of Sanichaufer.
Sanichaufer is one of the biggest Luxemburg-based firms in building services engineering, with over 50 years of experience. Sanichaufer’s main fields of activity are heating, air-conditioning and central control systems. For this reason, the “roof-top office” is designed as a showroom displaying the most modern building technologies.


The construction laws demand the adaptation of the roof type of the adjacent building on a sixth of the façade width. However, the client wanted a cubic extension with a flat roof. The design combines those two opposites – the “mansard-object” picks up the ridge height of the left neighbour (red lines) – while the cubic shapes of the “roof-top office” as demanded by the client gets alined with the right building (green lines). The two seemingly opposite shapes become one consistent design by using color gradients.
Coming from the “mansard-object”, these gradients seem to create a movement that finally integrates in the base of the “roof-top office”, visually dragging it underneath the “mansard-object”.


The combination of the different forms takes place with the help of grayscale gradients. The form follows the shades and vice versa. A subtle game. It alternates the opposite forms of the “Mansard object” and the “roof-top office”, as well as the different degree of the shades that seem to break out of the façade at the joints of the different parts.


Das Spiel zwischen Farben und Formen wird im Inneren fortgesetzt. Neues spielt mit dem Alten, Farben mit Formen, Geradlinigkeit mit Kurven. Die Wände und Decken der neuen Bereiche sind vollkommen in Weiß konzipiert. Entwurfsabsicht war, einen bizarr leeren Raumeindruck zu erzeugen, Räume, in denen lediglich die Farbabstufungen Formen und Bewegung vermitteln. In manchen Bereichen tritt der Besucher aus neuen Gebäudeteilen in alte, Bereiche, in denen Räume aus dem subtilen Zusammenspiel zwischen Alt und Neu entstehen bzw. neu offenbart werden.


The “roof-top office” becomes the CI of Sanichaufer, by the architectural language as well as the best possible energy efficiency. Therefore, the “roof-top office” is built in timber construction. Because of its function as showroom, the latest state-of-the-art in heating and air-conditioning is used.
A central control unit with touch panel and iPhone user interface manages the controlling and fine tuning of the installed systems. For Sanichaufer, the focus was not only on energy savings and energy efficiency, but also on the use of renewable energy like solar energy and green electricity.