• Aux@lemmy.world
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    1 year ago

    That’s nonsense. Insulation works both ways. It doesn’t differentiate if outside is cold or hot. A well insulated house will keep you warm during winter and cool during summer.

    • rbhfd@lemmy.world
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      1 year ago

      My house is very wel insulated. It doesn’t take much energy to keep it at a nice temperature in winter.

      In summer though, it can get very hot inside. The reason is that I have some fairly large, south facing windows. And once it’s hot inside, it’s very hard to cool it down again.

      I should really invest in some blinds, preferably outside, to keep the sun out during hot days.

      But the point is that insulation and keep heat in/out is not perfectly symmetrical.

      • moitoi@feddit.de
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        1 year ago

        Without outside blinds, the insulation doesn’t work. The windows work as a greenhouse effect and will quickly heat your house.

        Then, the insulation will work keeping the heat inside.

        I did mention that in Europe, we close our outside blinds during the day.

      • Aux@lemmy.world
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        1 year ago

        Well, your problem is the sun going through the windows. They completely defeat your house insulation. Yes, you need blinds, they help a lot. Preferably, outside mounted. Like in Southern Europe. If you cannot mount them outside, look for pleated blinds. They not only your room protect from the sun, but also work as an additional insulation layer. You can also close them during winter nights to save a bit of energy.

      • Vashti@feddit.uk
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        1 year ago

        Mate, you might as well complain your house is too hot because you run the heating all summer. Your insulation is working fine, you’re just nerfing it by not keeping the sun out.