Kehrerhof building

2-Kehrerhof SiebeneichImage Source

General Information:
  • Project name: Kehrerhof
  • Project type: new building
  • Building type: semi-detached house
  • Building Typology: residential
  • Location: Italy, Trentino-Alto Adige/Südtirol Region, Bolzano Province, Terlan Municipality
  • Year of construction: 2012
  • Number of buildings: 2
  • Number of floors: 2

 

Building Size:
  • Gross building volume: 1.797 m3
  • Gross heated floor area:  473 m2

 

Building Envelope:
  • Exterior wall: 20 mm exterior plaster; 365 mm ISOSPAN; 10 mm Interior plaster; U=0.15 W/(m2K)
  • Roof: 10 mm interior plaster; 42 mm ceiling tiles and air space; 18 mm OSB; 400 mm cellulose+wood proportion; 35 mm wood fiber; 18 mm OSB; U-value=0,13 W/(m2K)
  • Basement floor / floor slab: 40 mm wooden floor; 210 mm cement; 300 mm concrete; 250 mm XPS; U-value=0,13 W/(m2K)
  • Window: different glazings; U=0.65 W/(m2K)

 

Building service systems:
  • Ventilation: heat recovery ventilation.
  • Heating: air supply and surface heating, energy production with geothermal heat pump.
  • Photovoltaic installation: Installed capacity of 236 kW, 96 solar panels.
Building energy performance:
  • Annual heating demand: 14 kWh/m2a
  • Heating load: 14 W/m2
  • Primary energy requirement: 61 kWh /m2a
  • Air tightness: n50 = 0.5/h
  • Renewable energy production: estimated production from solar panels 3.100kWh/year
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