Cooling building materials (IMAGE) University of Chicago Caption The material contains a layer that can take on two conformations: solid copper that retains most infrared heat, which helps keep the building warm; or a watery solution that emits infrared, which can help cool the building. Credit University of Chicago PME - Image courtesy of Hsu Group Usage Restrictions Use only with proper attribution License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.