Key to the building’s energy-efficient design was transforming the existing, uinsulated facade into a high-performance curtain wall with elevation-specific shading devices. These include the “reeds” that stretch up the entire 18-story height of the northwest face and an integrated sunshade/light reflector on the southwest and southeast faces. These shading strategies are integral to the success of the project’s primary energy conservation measure (ECM): a hydronic radiant heating and cooling system.