‘Cool Walls’ Can Reduce Energy Costs, Pollution

Researchers modeled several different types and ages of homes, retail stores, and office buildings in cities across California and the U.S. and found that sunlight-reflecting “cool” exterior walls can save as much or more energy than sunlight-reflecting cool roofs in many places. https://newscenter.lbl.gov/2019/07/09/cool-walls-can-reduce-energy-costs-pollution/