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The thermal insulation of windows improved significantly with the development of thermal insulation glazing in the 1990s. And development has not stood still since then. Today, windows that were only installed in passive houses 10 years ago are already being used in the modernization of old buildings. And without any significant additional costs! Good news! However, this good news is occasionally mixed with reports of moisture problems after modern windows were installed in old buildings. But that does not have to be the case. This episode is about what to look out for when replacing windows in an old building so that the modernization is a success story. --------------------------------------------------------- The books for the channel Carsten Herbert - Everything you need to know about saving energy. Order the energy saving book: https://t.adcell.com/p/click?promoId=... Carsten Herbert - Everything you need to know about heat pumps. Order the heat pump book: https://t.adcell.com/p/click?promoId=... --------------------------------------------------------- Our YouTube channel is ad-free. Nevertheless, we want to provide everyone with independent energy advice. However, the production of the content must be financed. Support us in this. Help the ENERGY SAVING COMMISSIONER. https://steadyhq.com/de/energiesparko... --------------------------------------------------------- Idea and text: Carsten Herbert Video and editing: VB Kühl Music: VB Kühl, Apple iMovie Photos: Carsten Herbert, adobe Stock https://www.energie-und-haus.com https://volkerbahmer.de https://www.energiesparkommissar.de Energy advice online - free of charge