When an old roof is ripped off a house, it may look like a pile of junk, but some of those used shingles can get new life under the wheels of cars and trucks. The U.S. Environmental Protection Agency's Life Cycle Inventories of End-of-Life Pathways of Construction and Demolition Materials estimated that approximately 15 million tons of asphalt shingles were disposed of annually in the United States, based on data centered on 2018, the same year the report's breakdown reflects: an estimated 13 million tons were landfilled, and an estimated 2 million tons were recovered for further use. That makes old roofing a potential source of material for roads.
An old roof can become road material
