4 ms·

> Performance would be measured on the basis of watts of absorption under sunlight, and watts of emissions to the night sky. It is possible to design paint that

> Performance would be measured on the basis of watts of absorption under sunlight, and watts of emissions to the night sky. It is possible to design paint that visually is any color, yet maximizes or minimizes each of those parameters independently This doesn't exist. Or is there a link to commercial paints that can do this? Or testing on real buildings not claims from a labs media department? Here's a link disproving thermal paints which are ugly as well as don't work - https://www.sciencedirect.com/science/article/abs/pii/S0378778819301781 https://www.sciencedirect.com/science/article/abs/pii/S03787... Given money most people could better insulate their homes so even if these could exist they are pointless unless they are also reasonably priced.

Bjartr 4y ago
Your link seems to be discussing paints that reduce conductive losses (paint with insulating additives) between the paint and the ambient air, whereas I believe the person you were responding to was describing paint that optimized radiant losses between paint and the visible sky and reduce reduce gains from the sun, which are independent of ambient air temperature. For example, there's a reason so many buildings in the Mediterranean are painted white going back to antiquity.