The structure of the building is made of concrete and it was left exposed to create thermal mass to moderate the temperature fluctuations. The structure creates radiant slabs to exchange the heat with the offices (Fig. 7.7).
Fig. 7.7 Solar Heat Gain Integration-Plan diagram, © M. Keramati
Majority of energy consumption of the building goes into the lighting system, providing daylight not just as a means of energy efficiency but also health and wellbeing of the occupants, provided by narrow floor plates of the towers. The twin office towers are oriented toward west and northeast. All floor-to-ceiling glazing and ceiling height of 3.3 m and double-skin fa?ade provide daylighting with motorized windows and large automated louvers minimize solar heat gain and glare. Louver blades act as a light shelf at the top and penetrate the light deeper inside the room by reflecting light on to the white ceiling. The floor plates are narrow so no employees are more than 9 m from the window. The integrated shading systems are perforated to allow transparency and penetration of the daylighting on the east and west orientation while blocking the solar heat gain and glare (Fig. 7.8).