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Interesting that this comes up now in 2019. I'd say, while a Passivhaus is not the standard in Germany yet, you can simply go and buy one, like you can choose a
by geff82 7y ago
Interesting that this comes up now in 2019. I'd say, while a Passivhaus is not the standard in Germany yet, you can simply go and buy one, like you can choose a special version of a car and simply order it. Passivhaus is still cool, but nothing extraordinary from the future.
- jayalpha 7y agoIt comes with several disadvantages. Like no air circulation (except air condition, what is probably a must in such a house), mold problems etc. ...
- n1000 7y agoThat is simply wrong. The passive house standard requires ventilation systems with highly efficient heat exchangers. This makes for good air quality. The massive thermal insulation ensures that no condensation occurs in the interior, i.e. no mold problems. A common problem, however (esp. if inexperienced planners design the house) is too dry indoor climate in winter. This happens if air change rates are too high and no humidity is recovered.
- bipson 7y agoThe regulations for Passivhäuser (or houses with the respective efficiency rating) in fact require a ventilation system with heat recovery (since the otherwise necessary open-the-windows-like-a-savage-system wastes too much energy). These nowadays come typically with moisture recovery (which arguably not always works well enough, depends on how much you still need to heat).
- n1000 7y agoMany governments, such as the EU have decided Zero Energy Buildings as a target for 2020. Those are basically passive houses with PV systems. Hence they produce the same amount or a surplus of energy as is being used throughout the year.
- n1000 7y agoNot from the future, but for the future: In 30 years from now (2050) we should be carbon neutral in order to have a shot at the 1.5° C target. Average building lifetime is >30 years. So in my opinion it would be irresponsible to build anything else than a passive house or a zero energy building today.