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Old 11.08.2020, 23:54
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Re: Help needed - drill holes in concrete wall

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I donít think there is any air trapped, so no way to have condensation, no? Breathing: absolutely not. Which is why all of those minergy houses come with an air ventilation system. All I can say is that for me it really works. The house is a LOT colder in summer than older houses with no need for an ac at all (and it stays warm in winter...)
Is depending how thick is the concrete wall if is under 200mm will condensate and then is needed a breathable membrane and isolation installed with gap from the wall, with top and bottom ventilation...
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