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Window blinds for the worst hours (can be angled so the sun doesn't enter but the view outside is retained), and solar reflective foil for the normal days. I'm still looking for the good, transparent matte coat for my exterior walls, but I've already cut some of the cooling power use via passive means.

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> transparent matte coat for my exterior walls

I'm curious about this. Do you mean a layer of paint-like substance that makes the walls isolate better?

Kind of not like this.

I mean the coat on my brick wall (and ideally roof), that will reflect most of the infrared and UV.

I've used a white paint like this on the conservatory and white walls outside, and along with a solar-reflective foil outside of my windows it's the biggest factor to having a nice temperature inside. I might also actually consider painting the interior walls with something like this as well - there's less he t escaping through radiation if it's reflected back, right?

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