From our experience, ang aluminum facade should be at least 2.5 mm thick. 3.0 mm is highly recommended. Gayunpaman, aluminum facade thickness is determined by various factors including the building’s height, wind loads, and safety standards. Common thicknesses range from 2.0 mm sa 4.0 mm, with custom panels available up to 5.0 mm or even thicker. Aluminum facades also come in different categories from thin to extra-thick plates. For specific projects, factors like local building codes and the facade’s structural role will influence the required thickness, with 4mm being a standard choice for some applications.