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If you have a house that tight, you need to compensate by a certain number of minimum forced air changes per hour, on top proper ventilation in your bathrooms a
by sgc 4y ago
If you have a house that tight, you need to compensate by a certain number of minimum forced air changes per hour, on top proper ventilation in your bathrooms and kitchen. In fact, modern building code in the US, and likely throughout most developed countries, requires a tighter envelope than the minimum number of air changes per hour, thus requiring, intrinsically, that all houses have ERVs or HRVs. This is all a solved problem, and you are never going to need to dehumidify during the heating season if you are respecting the principles of building science. It is possible to build "too tight" by neglecting basic ventilation principles, but that is not what I would call "properly closed".
- usrusr 4y agoProperly built modern houses would certainly not be the realm of slightly less bad resistive heating improvisations. But here in Germany we have plenty of old stock modernised to the point where is sufficiently air tight for insufficient ventilation to become an issue (and often it does!), but not to the point of active ventilation. Moisture buildup is a major concern, particularly at times of heating scarcity (which is when improvisations become more likely) As I said, different environments.