Architectural Building Products representatives have the knowledge as it relates to the utilization of the different types of metal panels and siding on the building exterior.  There are times when multiple products are appropriate on one building.  By integrating the flexibility of a composite panel, which would be appropriate for a design aesthetic such as a curve, whether convex or concave, and then using an insulated flat panel, steel foam, or metal siding for the expanse of a large straight wall you will gain the benefits of the design-ability of the composite panel and cost effectiveness of either the metal siding or the insulated panel.  You end up using the strengths of each individual product where appropriate.