Metal is the best choice for the environment when it comes to roofing materials. Firstly, all Metal Lab products are made in part from recycled metal, which is the most recycled material on earth! This is in stark contrast to asphalt shingles, which, according to the National Association of Homebuilders Research Center, 20 billion pounds of asphalt shingles are dumped into U.S. landfills every year. Considering how often an asphalt shingled roof has to be replaced, the only environmentally conscious choice is metal, as it is the only roofing material that can be easily recycled.