A building's exterior facade is, as the name implies, its face, and great design effort goes into the arrangement, color, and texture of this outermost skin. In large part, the exterior layer defines what the building will be, but its function goes way beyond aesthetics. "The facade is of paramount importance in terms of building performance," says Dr. Mikkel Kragh, an associate at Arup and chairman of the Society of Facade Engineering. "The facade is the number one filter between the climate outside and the conditioned space inside... and its performance relies on appropriate specification, design, and delivery of a multitude of components and systems."
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