Sanichaufer is one of the biggest Luxemburg-based firms in building services engineering, with over 50 years of experience. Their 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 fašade 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 aligned with the right building (green lines). The two seemingly opposite shapes become one consistent design.