All roofs need to be replaced. When it is time to replace yours, make the cool choice--pick a roofing material that reflects sunlight and keeps your home and city cool. Here are some resources to help you:
White roofs reflect sunlight, keeping our buildings and cities cooler. For example, a white roof in temperate or tropical regions absorbs about 70% less sunlight than an ordinary roof. White roofs cool the human environment as well as the atmosphere, and reduce our need for air conditioning.