den grønne planet

´the green planet´
Passive house day-care centre
WVW (a consortium of WITRAZ arkitekter, Tegnestuen VANDKUNSTEN and WISSENBERG Rådgivende Ingeniører) has designed Denmarks first passive house day-care centre. The building is heated by utilising surplus heat from children, staff and technical equipment, thus reducing energy consumption by approximately 70 % compared to that of a contemporary traditional building.

 

Our passive house day-care centre combines marked architecture with minimum surface area, high insulation values and almost airtight envelope structure. Large glazed sections face south to provide optimal use of solar heating. Windows facing north are few and small. Southward sun screens and open facades prevent overheating. During the winter season, concrete walls and floor slabs store heat, and release it during the night. A highly efficient ventilation system with 90 % recirculation produces additional heating when needed and provides night cooling for increased comfort during summer. A green moss-covered roof reduces overall wastewater discharge, strengthens photosynthesis and cools the building.

 

The day-care centre is built at Gyldenrisparken, a social housing area in Copenhagen. The day-care centre constitutes one element of a coherent development of this particular area that also includes 450 dwellings, common laundry, gardens and landscape as well as the building of a new nursing centre. A combination of ventilation, solar heating, airtight constructions and ecolabeled building materials with recirculated heating, ground cooling, urbanisation and thorugh initial analysis of needs and daily routines contributes to the reduction of CO2 emission in every corner of this housing area.