Aluminum Lock and Copper Lock roofing shingles from Aluminum Lock Roofing Inc. have been manufactured in Salt Lake City, Utah since 1957. Our Aluminum Lock shingles use an interlocking shingle system that has proven durable and effective throughout four decades of hot summers and cold, snowy winters. If you take the time to compare Aluminum Lock with other roofing systems, you will see why Aluminum Lock shingles are superior.
