YInMn is supposed to have high NIR reflectivity useful on a sunny roof. The Apollo 11 Lunar Module used gold foil to reflect heat, I suppose future vehicles could have a brilliant blue foil, apt for Blur Origin.
I liked how the lunar module used gold foil, and Apollo the Greek god was the Sun deity; gold often used to represent the Sun.
If all you need is IR reflection for a building then TiO2 based paint will do the job and is much cheaper. The advantage of YInMn is that it also provides color.
I liked how the lunar module used gold foil, and Apollo the Greek god was the Sun deity; gold often used to represent the Sun.