$$$ coating uses sunlight to actively cool

[rcjordan]

"In a proof-of-concept test on cars, the startup found that a white car covered with the coating was as much as 25 degrees Fahrenheit cooler than a non-coated white car sitting in the sun in the middle of the day. A black car with the coating was as much as 34 degrees cooler. "

This rooftop coating uses sunlight to actively cool your house
https://www.fastcompany.com/90745406/this-rooftop-coating-uses-sunlight-to-actively-cool-your-house