Moneypenny™ is a proprietary finish developed to look exactly like a raw panel of copper than has just the hint of aging - like a new penny that's been in the pocket of your jeans for a while. Every panel with this this finish product goes through the same process individually, so that each panel is naturally unique. And while the finish looks like copper, it doesn’t develop a further copper patina, because the finish is an oven-cured powder coat on an aluminum base. The similarity to copper is unprecedented in the industry, worldwide, for any market. Putting the finish on an aluminum base allows for a 10-year finish warranty and 25-year structural warranty. Aluminum is relatively inexpensive, keeps its form and rigidity over large structural spans, and is less than half the weight of copper.