this post was submitted on 22 Jul 2026
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@JackbyDev @turip Problem with insulation is that there isn't a good way to retrofit old buildings with it without mold building up, as old buildings were designed to breathe.
Not true.
There is not a magic solution that is perfect in every scenario. Air conditioners decrease humidity as a side effect, though.
You can ventilate periodically, air doesn't hold that much thermal energy. You can also use heat recovery ventilation, should work in reverse to keep the heat out too.