By: Julie D. Stern, managing editor, Development
Summer 2014
Commercial rooftops come in many colors. Traditional “black” roofs absorb heat from the sun and contribute to urban heat islands, which in turn contribute to poor air quality, increased heat-related illnesses, increased energy use and more. White or “cool” roofs use reflective materials, which typically are light colored, to reflect the sun’s energy, resulting in rooftops that can be 50 to 60 degrees F cooler than a dark roof on a hot summer day.