Summary: In recent years, the field of radiative cooling (see below) has seen a fair bit of interest and different designs for various applications. However, cooling roofs and walls of buildings remain its greatest application, and white paints, owing to their convenience and modest radiative cooling capability, remain the benchmark for radiative coolers. Curiously, they are seldom mentioned in prominent works that have come out of late, and the paint industry, in turn, has been somewhat distant from advances made in the field.
This article aims to draw research interest into paints as highly efficient radiative coolers. Specifically, simple material and morphological alterations that can greatly enhance the cooler performances of paints are shown, and interdisciplinary challenges associated with their usage, such as the effect of dust or the need for durability, are discussed.