RandomLogicThough t1_iv8j4px wrote
Reply to comment by aldhibain 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
I feel that would also stop heat from getting out. I'll look at the article...sometime....
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