“If these walls could talk, they might tell you that cutting energy costs and pollution may be as easy as giving them a fresh coat of lighter, more reflective paint.

A study by scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) modeled several different types and ages of homes, retail stores, and office buildings in cities across California and the U.S., and found that in many places sunlight-reflecting “cool” exterior walls can save as much or more energy than sunlight-reflecting cool roofs…”

Read More: https://techxplore.com/news/2019-07-cool-walls-energy-pollution.html