1. A STEP TOWARDS A CARBON-NEUTRAL FUTURE
Passive Houses
A STEP TOWARDS A CARBON-NEUTRAL FUTURE

2. Structure What are passive houses? Development of passive houses
Advantages and disadvantages
How are passive houses built?
Can you upgrade a normal house into a passive house?
Where are passive houses built?

3. What are Passive Houses?

5. About New construction in residential, commercial projects
Well insulated
Working with natural resources
 achieve low running costs
 energy efficient construction
 low running costs

6. Result Impressive system which saves up to 90 percent heating costs
Step towards a cleaner world

7. Development of Passive Houses

8. Idea and Implementation
emerged from a conversation between Professors Bo Adamson and Wolfgang Feist in 1988

9. The inventors Dr Feist, founder of the Passivhaus
Institut and co-originator of the concept
Prof. Bo Adamson, co-originator of the concept

10. 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

11. Expansion further commercializing due to CEPHEUS
=>proves the concept in 5 European countries ( )
first passive house in North Amerika, (Urbana, Illinois in 2003)
first Passive House to certified: near Bemidji, Minnesota in Waldsee(2006)

12. Today about 15.000 Passive Houses in Europe
including : single and multifamily residences, schools, factories , office buildings and even governmental agencies

13. Advantages and Disadvantages

14. Living Comfort

15. 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

16. Costs

17. initial building costs up to 17% higher

18. equalled out by saved costs for heating

19. Comparison of energy consumption of different types of houses

20. on average: equalled out after 21 years

21. Overall Satisfaction with Passive Houses

22. “Have your initial expectations been fulfilled until now?”

23. How are Passive Houses Built?

24. Expressions U-factors W/(m²/K); R-factors Insulation = Wärmedämmung
Installing zones: kitchen, bathroom

25. 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
W/(m²K)

26. Materials/Methods Roof: mineral wool and cellulose 0.07 W/(m²/K)
Installing-zones kept close together
Envelope airtightness
Heat exchanger
Subsoil heat exchanger

27. Methods Southern orientation Prevensation of shading
Usage of solar energy
Air traps
Security heating

29. Can you upgrade a house into a Passive House?

30. construction is not constricted to specific types of buildings
 every building can be upgraded into a passive house

31. 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

32.  You can upgrade every house into a Passive House but the costs and investments are very high.

33. Where are Passive Houses bulilt?
in German-speaking countries
in Scandinavia
buildings increase mostly Europe,

34. Thank you for your attention.

35. Sources http://www.passivhaus-vauban.de/passivhaus.en.html (27/12/09)
(p. 85, 27/12/09)
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PassiveHouseInfo.html (01/01/10)
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