Exterior, Wood Siding Material, Glass Siding Material, Prefab Building Type, Metal Siding Material, and Flat RoofLine Architect Chris Pardo designed the Element 1 model for prefab builder Method Homes, cladding it in Cor-Ten steel and cedar. Pardo’s design “is the definition of simple, elegant, straightforward building,” resident Karen Kiest says.  Photo 4 of 10 in 10 Steel Prefabs That Are Both Modern and Practical from Compact, Light-Filled Prefab