Bauexperte
2016-10-05 22:55:55
- #1
It is, because the new houses are simply too airtight and hardly any occupant can comply with the ventilation intervals. Which is not to be equated with the fact that a controlled ventilation system makes airing unnecessary. Regarding mold, it is less debatable that a missing controlled ventilation system is the cause, but rather the mixing water when installing the cement screed (1st week, still without ventilation or heating), which leads to a very high moisture increase in the screed insulation. Rhenish greetingsWhether the controlled ventilation system is really necessary because otherwise the place would rot ... no idea