A paint 'sweats' to keep buildings cool.

Optical reflection; Energy consumption; Surface coatings; Urban heat islands; Painting; Evaporative cooling; Humidity; Sustainability

The article discusses the development of a new type of paint that enables passive cooling without the need for air conditioning. Researchers have created a cement-based paint that reflects sunlight, evaporates water, and combines multiple cooling strategies, making it effective even in hot, humid climates. This paint reflects 88 to 92 percent of sunlight and can reduce electricity usage for air conditioning by 30 to 40 percent in treated homes. Its durability is demonstrated by its ability to maintain its reflective properties over time, potentially mitigating the urban heat island effect in cities. [Extracted from the article]

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