Blower Door Measurement – Air-Tightness Testing in Passive Houses
A STEP TOWARDS A CARBON-NEUTRAL FUTURE Passive Houses.
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Transcript of A STEP TOWARDS A CARBON-NEUTRAL FUTURE Passive Houses.
A STEP TOWARDS A CARBON-NEUTRAL FUTURE
Passive Houses
Structure
1. What are passive houses?2. Development of passive houses3. Advantages and disadvantages4. How are passive houses built?5. Can you upgrade a normal house into a passive
house?6. Where are passive houses built?
What are Passive Houses?
About
• New construction in residential, commercial projects
• Well insulated
• Working with natural resources
• achieve low running costs
• energy efficient construction
• low running costs
Result
• Impressive system which saves up to 90 percent heating costs
•Step towards a cleaner world
Development ofPassive Houses
Idea and Implementation
• emerged from a conversation between Professors Bo Adamson and Wolfgang Feist in 1988
Prof. Bo Adamson, co-originator of the
concept
Dr Feist, founder of the Passivhaus
Institut and co-originator of the concept
The inventors
Evolution
• first Passive Houses:Darmstadt (Germany) in 1990
• foundation of Passivhaus-Institution (1996)
• creation of the Economical Passive Houses Working Group (1996)
• further constructions in Stuttgart, Wiesbaden, Naumburg and Cologne
Expansion
•further commercializing due to CEPHEUS
=>proves the concept in 5 European countries (2000-2001)
• first passive house in North Amerika, (Urbana, Illinois in 2003)
• first Passive House to certified: near Bemidji, Minnesota in Waldsee(2006)
Today
•about 15.000 Passive Houses in Europe
•including : single and multifamily residences, schools, factories , office buildings and even governmental agencies
Advantages and Disadvantages
Living Comfort
due to the air condition system...
•very good air quality
•same temperature in all rooms
•opening of windows and doors does not have a great impact on temperature
Costs
•initial building costs up to 17% higher
•equalled out by saved costs for heating
Comparison of energy consumption of different types of houses
➡on average: equalled out after 21 years
Overall Satisfaction with Passive Houses
“Have your initial expectations been fulfilled until now?”
How are Passive Houses Built?
Expressions
•U-factors W/(m²/K); R-factors
•Insulation = Wärmedämmung
•Installing zones: kitchen, bathroom
Materials•Exterior shell: U-factors lower than
0.15 W/(m²K)
•Windows: triple plane, low-e-glazing
0.8 W/(m²K)
•Exterior wall insulation: Polystyrol and Mineral wool
0.08-0.14 W/(m²K)
Materials/Methods•Roof: mineral wool and cellulose
0.07 W/(m²/K)
•Installing-zones kept close together
•Envelope airtightness
•Heat exchanger
•Subsoil heat exchanger
Methods
•Southern orientation
•Prevensation of shading
•Usage of solar energy
•Air traps
•Security heating
Can you upgrade a house into a Passive
House?
•construction is not constricted to specific types of buildings
• every building can be upgraded into a passive house
Passive Houses
•very good heat insulation
•air conditioning to gain heat
•windows with good heat insulation (heat protection glazing)
•walls of a passive house are not permeable to air
• You can upgrade every house into a Passive House but the costs and investments are very high.
Where are Passive Houses bulilt?
•in German-speaking countries
•in Scandinavia
buildings increase mostly Europe,
Thank you for your attention.
Sources• http://www.passivhaus-vauban.de/passivhaus.en.html (27/12/09)
• http://www.passivehouse.com/07_eng/news/CEPHEUS_final_long.pdf (p. 85, 27/12/09)
• http://www.passivhaus-vauban.de/passivhaus.en.html (27/12/09)
• www.passivehouse.co.uk/ (06/01/10)
• www.passivehouse.us/passiveHouse (06/01/10)
• PassiveHouseInfo.html (01/01/10)
• http://www.passivehouse.us/passiveHouse/PassiveHouseInfo.html (04/01/10)
• http://www.passivhaustagung.de/Kran/First_Passive_House_Kranichstein_en.html (06/01/10)
• http://www.e-colab.org/ecolab/SmithHouse.html (06/01/10)