Benefits of RHEINZINK® Zinc
One of our EcoChoice™ products, RHEINZINK Zinc is a sustainable product that doesn't harm the environment. Used for centuries, architects are taking a second look at Zinc's unique properties. Architectural grade zinc is 90 to 95% recycled. Replacement costs are negligible with a long lifetime of 80 to 100 years for zinc roofing and 200 to 300 years for wall systems.
While all metals can be recycled, most metals corrode when exposed to the environment. Zinc alloys actually absorb the greenhouse gas carbon dioxide, locking it away in a protective surface layer of zinc carbonate. Zinc carbonate (known as "smithsonite" when found in mineral form) gives zinc panels a distinctive bluish patina. Zinc's pollution fighting properties result in a patina that is unique to the environment it is in. That's because in addition to carbon dioxide, zinc also absorbs other pollutants and locks them away into a surface patina with its own unique character.
Zinc also has the added benefit of ultra low toxicity. Zinc carbonate, the principal component of the patina that forms on zinc, is used in topical ointments like calamine lotion. Runoff from zinc roof, wall and rainwater systems is so low that it's difficult to even detect.