White roofs are best, reflecting from 60 to 90 per cent of daylight, based on the Section of Power. But you also can buy a "great coloured" roof: a darker roof that utilizes specialised pigments that reflect about thirty to 60 percent of daylight. (Test the DOE’s Power Saver website https://www.google.ad/url?q=https://www.advancedroofing.biz/location/