Winner of the dutch Schreuderprize for underground buildings.

The new onderground building is connected to the recently renovated schoolbuilding of architect Rietveld.

Due to the limited daylight access several analyses of day lighting and artificial lighting are executed. Because of solar loads sun shading has been designed but views to the outside have been left open. For a characteristic day the hour by hour course of entering sun has been simulated. This animation can be seen in simulations. (The large file takes some time to load. Depending on your connection speed.)

Underground buildings have specific questions to be answered. To make use of the thermal mass of the ground insulation has been limited whereas building regulations prescribe R_c = 2,5 m²K/W. 3D-calculations (static) of heat losses demonstrated equivalence with building regulations.