Roofing giant GAF says it’s the most significant sustainability initiative it’s ever taken on.
Unlike many other places, which may use materials like slate and terracotta for roofs, North America predominantly covers houses with asphalt shingles. About 75% of U.S. roofs are covered by this material, due to its low cost, water-repelling qualities, and ease of installation. But, the abundance of the material puts strain on the environment. According to the Environmental Protection Agency (EPA), 11 million tons of asphalt waste is generated every year, most of which ends up in landfills. It takes about 300 years to decompose.