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- Why build an airtight house? – Leakage problems
- re, cellulose filling or mineral wool insulation. These materials are very good insulators, but they are ... h first built projects or a Passive House course, these very good values can be achieved regularly. (To see these figures as "very tough" is just a beginners view;... 0,5 h<sup>-1</sup>.) * the costs for achieving these values are not higher than those to achieve less
- Airtightness test
- advantages, reduced energy demand is only one of these. The values required by the current EnEV regulati
- General principles for improving airtightness
- anning and conscientious implementation using all these methods. Details about the implementation of all