Cool roofing maintains lower attic temperatures by reflecting sunlight similar to how light-colored clothing helps you feel cooler on a sunny day. Standard or dark roofs can reach temperatures of 150°F or higher in hot climates. A cool roof under the same conditions could stay more than 30°F cooler. Cool roofing materials certified under the ENERGY STAR program include metal, tile, and asphalt shingles. They incorporate light colors and/or reflective materials that help meet minimum criteria for solar reflectance and reliability criteria.