Refurbishment:
Save energy: all measures to reduce the consumption of energy.
Heat losses in a house:
Passive house criteria:
Highly insulated building envelope U < 0,15 W/(m2K)
Prevention of thermal bridges
Compact shape/structure
Passive solar energy use by south orientation and freedom of shading
Super glazing and super frames U < 0,8 W/(m2K), g-value ca. 50%
Airtightness n <0,6/h
Heat recovery from exhaust air, heat recovery ratio > 75%
High-efficiency low-power devices for households
Drinking water heating by collectors or heatpumps
Passive air preheating by earth heatpumps
Passive house benefits:
Significant savings of Energy and additional costs
Rise of independence in relation of fossil energy sources
Better internal air quality by CO2 - and humidity control
Unstressed stay for allergic by use of high-quality filter.
No thermal bridges - no humidity and mold problems.
Low temperature fluctuations in summer as in winter
Overheat-protection in summer by highly insulated buildings.
No dust clouds by radiators.
Noise prevention by closed windows.
Rise of surface temperature on external walls inside surface - rise of comforts.
Save energy: all measures to reduce the consumption of energy.
Heat losses in a house:
Passive house criteria:
Highly insulated building envelope U < 0,15 W/(m2K)
Prevention of thermal bridges
Compact shape/structure
Passive solar energy use by south orientation and freedom of shading
Super glazing and super frames U < 0,8 W/(m2K), g-value ca. 50%
Airtightness n <0,6/h
Heat recovery from exhaust air, heat recovery ratio > 75%
High-efficiency low-power devices for households
Drinking water heating by collectors or heatpumps
Passive air preheating by earth heatpumps
Passive house benefits:
Significant savings of Energy and additional costs
Rise of independence in relation of fossil energy sources
Better internal air quality by CO2 - and humidity control
Unstressed stay for allergic by use of high-quality filter.
No thermal bridges - no humidity and mold problems.
Low temperature fluctuations in summer as in winter
Overheat-protection in summer by highly insulated buildings.
No dust clouds by radiators.
Noise prevention by closed windows.
Rise of surface temperature on external walls inside surface - rise of comforts.
