The building shell is the interface with the outside world, it offers protection and at the same time represents its owners or occupants. But what are the criteria for choosing a specific shell? Why is a particular material used on a particular undercoat? The fifth volume of the SCALE series, Enclose | Build, is not about the curtain, the dressing of the facade that surrounds a building, but rather on a causal level about the exterior termination of a building, the wall, the facade, which can be made of various materials, surfaces, and achieves different design effects. It shows the conditions under which certain constructions can be employed and why; what criteria such as construction costs, issues of sustainability, of energy efficiency, of assembly or of insulation or protection against moisture can also influence the choice of a system. In addition to classical constructions, Enclose | Build offers a look at future developments. How will the facade evolve as an interface for information? What do viable concepts for environmentally active, energy-efficient building shells look like? Enclose | Build is an indispensable tool for every architect and planner.