Kehrerhof building

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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

 Links for further information:

• http://www.passivhausprojekte.de/index.php?lang=en#d_2702
• http://www.aidaproject.eu/downloads/25/03_eurac_kerer_en.pdf