Preweathered Zinc Gutter Material has an exceptional processing properties, extraordinary durability and exemplary ecological compatibility, Preweathered Zinc Gutter material has proven to be an ideal, durable, weatherproof material for high-grade roofing, facade cladding and gutter systems. Over time, Preweathered Zinc Gutter material forms an unstructured protective layer, uniform in appearance, from basic zinc carbonate – the patina. The patina, which develops as a result of weathering, lends Preweathered Zinc Gutter Material products their anticorrosive properties – thus, little or no maintenance or cleaning is required during their lifetime.