The building envelope is predominantly a glass curtainwall with a custom exterior concrete screen made from pre-fab panels of white CRC concrete (Compact Reinforced Composite, a special type of Fiber Reinforced High Performance Concrete with high strength) featuring circular openings with an underlying solar screen and natural ventilation.
The architects say that the composition of the screen avoids a dull repetitive patterning, yet manages to save costs due to a modular assembly comprised of only 7 unique cast profiles. Data from key views, solar shading, and structural requirements provide parameters to control circular opening sizes and locations with respect to interior functions. Structural integrity of the panel connection points added further challenges to the design of the custom screen.
The circular patterning of the CRC screen extends onto the roof where variously sized circular skylights bring daylight into the central atrium.
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