UNStudio and Swiss Paint Experts Develop New Coating to Help Cool the Planet

The escalating use of air conditioning is pushing urban temperatures to unprecedented heights. In highly populated nations like India, China, Indonesia, Brazil, and Mexico, major urban centers are becoming virtual ovens. At the same time, heat absorbed by buildings is re-released into the environment, driving local temperatures even higher. This outdoor heat, in turn, triggers demand for more air conditioning, creating a vicious cycle that increases both energy consumption and atmospheric carbon emissions.

In response to this feedback loop, UNStudio partnered with Swiss paint specialists Monopol Colours to develop “The Coolest White”—an ultra-durable coating that protects buildings and urban structures from excessive solar radiation, thereby mitigating the urban heat island effect. Darker materials used in urban construction are a primary driver of urban heat accumulation. These materials absorb up to 95% of solar radiation, re-releasing it directly into the atmosphere, whereas standard white surfaces reduce this absorption to 25%. Now, The Coolest White lowers this absorption and emission value to a groundbreaking 12%.