• cynar@lemmy.world
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    3 个月前

    You can get wall insulation that is, effectively a stiff bubble wrap made of milar foil. It’s not even that expensive I cut it to match windows, then used suction cuts to fix it in place.

    It’s amazingly effective at keeping heat out. During the 45 degree weather, I barely had to use my air conditioner, to have a comfortable temperature.

    • Korhaka@sopuli.xyz
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      3 个月前

      The film allows you to still see out and get a bit of light and doesn’t result in your house looking like a drug den. I am aware of the foil though. How does it compare to tinfoil on cardboard?

      • cynar@lemmy.world
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        3 个月前

        I’ve not tried tin foil. The insulation seems to be more robust, and it wants to lie flat. It’s also optimised for IR reflection, tin foil isn’t.

        Downside, it’s a near perfect blackout material. I only put them up when it’s going to be ridiculously hot, and only on the sun facing side of the house.

        • Korhaka@sopuli.xyz
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          3 个月前

          Might give it a try, wonder how long before my cat decides its a scratch toy though. Another benefit to external window films.