A new form of composite facade material developed by students in Spain is capable of reducing the temperature of building interiors by as much as five degrees Celsius simply by exploiting the cooling properties of the evaporation process.

The Hydroceramic facade consists of a mixture of fabric, clay and hydrogel – a highly absorbent substance which serves as the key to its enhanced cooling ability. The hydrogel is a type of slow-evaporating solid polymer whose volume can expand by as much as 400 times via the absorption of water. [caption id=”attachment_108565″…