Rheinzink, Burnaby, B.C., Canada, offers Rheinzink® ProRoofing. With its uniform blue-grey zinc patina, the material is recommended for ventilated and non-ventilated roofs and flashings. In addition, a transparent, temporary surface coating improves transportation, storage and processing properties. On the underside of the metal, the product has a resistant, flexible coating, suitable for all sheet-metal work processing, which provides protection against abrasion and underside condensation.