We’ve gone green with cars, appliances and technology. Now the movement is on to go green with residential roofing. Environmentally-friendly roofs are gaining in popularity as homeowners recognize the many benefits green roofing brings. With energy bills one of the major expenses of owning a home, eco-friendly roofs are becoming an attractive option for homeowners seeking ways to lower their heating and cooling costs. But more than that, certain types of green roofs are eligible for federal and state tax credits, and deliver benefits beyond just monetary.