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413 points samclemens | 1 comments | | HN request time: 0s | source
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AlexErrant ◴[] No.41854344[source]
The "Technology Connections" youtube channel recently discussed awnings too. (And it had more or less the same message as this blog.)

https://www.youtube.com/watch?v=uhbDfi7Ee7k

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malfist ◴[] No.41854624[source]
And that has way more details than this. The only why supplied here is "we forgot" and "AC"
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bsder ◴[] No.41855852[source]
I suspect it's not really "forgot". I suspect it's "awnings require ongoing maintenance".
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dghughes ◴[] No.41857618[source]
Also windows now have low-emissivity (low E) coatings. The coating varies light transmission depending on the sun angle. When the sun is high in summer some visible light but more UV and IR is reflected. When the sun is low in the winter more light can pass through. Pretty much what an awning does.
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1. potatoz2 ◴[] No.41870065{3}[source]
I'd be interested in a link about low E coatings that depend on the sun angle, a quick search doesn't yield anything.

Either way it's not a sufficient solution because AFAIK even the best solar protection glass will let 1/3 of the sun's heat in, which is an enormous amount when you have long summer days.