OkCarrot89 t1_iv7iqql wrote
Reply to comment by TheSiege82 in Researchers designed a transparent window coating that could lower the temperature inside buildings, without expending a single watt of energy. This cooler may lead to an annual energy saving of up to 86.3 MJ/m² or 24 kWh/m² in hot climates by mossadnik
Go on Amazon and buy some window film like the kind they're talking about in the article. That or buy some white thermal curtains to reflect the light away.
This is a very established and old issue that people have already made solutions to.
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