Architectural Metal Surfaces by L. William Zahner

1. New term= anodizing: a common form of protection, one that utilizes the more metallic nature of the surface. Anodic oxidation of the metal surface
2. With Al, anodizing reduces its reflectivity. 
3. copper absorbs and reflects the red side of the visual light spectrum. It can have a firey, flamelike appearance when hit by natural light.
4. steel is mostly considered a utilitarian material
5. steel is ACTUALLY a greenish blue- blue gray in color
6. steel's color and surface characteristics makes the connection to strength and substance