Zinc was first used as a building material in Paris, France, in the 1800s as part of Baron Hausmann’s rebuilding program. Today 85% of all metal roofs in Paris utilize zinc. Umicore (VM Zinc) is the world’s leading producer of architectural zinc as a building and construction material. Helming Bros. craftsmen are trained in VM Zinc Wall Cladding and Roofing Systems as well as having completed hundreds of copper roofing fabrication and installation projects. Helming Bros also trains companies internationally on the VM Zinc System.