There is a great company located in metro ATL called Energy Roofing Systems that offers an energy efficient Energy Star rated metal roof that is also tax credit eligible. Their roof is designed to reduce the overall temperature of your home, thereby requiring you to use less a/c, which results in a cheaper energy bill by 30-40%. Best of all, it is solar ready so that when the price of solar technology become more affordable in the future you can have some panels installed right on top of the metal using a simple bracket system. I would tell anyone interested in solar technology who is also in the market for a new roof to hold off on getting another shingle roof before looking into some alternative options.
www.energyroofingsystems.net