Client:
owners corporation Hohe Straße
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Hohe Strasse, Hanover
Description
In autumn 2001, planners discovered by accident the unoccupied building in Linden, a vivid district of Hanover. The decision to implement a joint project with several generations living under one roof matured quickly. The existing dilapidated building was torn down to the upper edge of the basement. Together with the future inhabitants, the planners designed individual and flexible floor plans.
Involved parties
Design:
architectual office Christian Grubert
Building data
Building type:
apartment house
Location:
Hanover-Linden
Year of construction:
2002-2003
Residential units:
11
Heated usable space:
1073 m2
Subsidies:
KfW, proKlima
Building shell
EXTERIOR WALLS:
Exterior walls east and west (EC, OG): solid wall of calcareous sandstone with wooden-facing shell and cellulose insulation, HTC = 0.11 - 0.12 W / (m2K)
Exterior walls north and south (EC, floor), Exterior walls Attic: wood lightweight walls with cellulose insulation, HTC = 0.09 - 0.10 W / (m2K)
WINDOWS:
Wooden windows with aluminum cladding and insulation layer made of purenit and polyurethane foam; heat-insulating 3-pane glazing
HTC = 0,80 W/(m2K)
ROOF:
Wooden lightweight construction with cellulose insulation, some green roof superstructures, some roof terraces
HTC = 0,09 - 0,10 W/(m2K)
BASEMENT CEILING:
11 cm or 14 cm insulation on reinforced concrete, HTC = 0,16 - 0,24 W/(m2K)
Building technology
VENTILATION:
each apartment has got a comfort ventilation system with heat recovery functions
HEATING:
central pellet heating with solar system for space and water heating, heat distribution via supply air and radiators in the bathrooms. In some apartments another heater or a wood stove was installed on costumer request.
AIR CONDITIONING:
no active air conditioning installed
Measured values
AIRTIGHTNESS:
n50 = 0,55 h-1
Calculated values
Calculated method: Passivhaus planning package
HEATING ENERGY NEEDS:
14 kWh/(m2a)
PRIMARY ENERGY NEEDS FOR HEATING,AIR CONDITIONING,DHW,ELECTRICITY:
74 kWh/(m2a)
