Page 7 of 32 Sun-shading The sky gardens that cantilever out provide partial sun-shading for the building (Figure 3 & 9). Refer passive design elements for further elaboration. Figure 9: Partial sun-shading. [Source: http://www.lioninthewild.com/2014/01/parkroyal-on-pickering.html] Natural ventilation The external corridors at every floor are opened up on the side facing the adjacent building. Instead of using a wall, the plants along the sides act as a boundary. This provides plenty of natural ventilation (Figure 10). Figure 10: Corridor with natural ventilation. [Source: http://www.lioninthewild.com/2014/01/parkroyal-on-pickering.html]