Climate-Responsive Design Strategies

Fixed Shading Devices --- Effective

Oasis Terraces has a characteristic and consistent use of pergola on its rooftop as a replacement of conventional fully-covered shelter.

Although not protective from the rain, such device can reduce sun glare up to 80% based on measurements.

Gym and east garden are the top two most comfortable places among all, largely due to the pergola that provide shade and also facilitate air flow.

The design leverages on the high wind speed at rooftop to evaporate humid air generated at gym and greeneries.

Mobile Shading Devices --- Unsatisfactory

Wall are recessed to create corridor or balcony so as to reduce sun glare. Yet the additional layer of translucent black roller blind makes the space gloomy and somewhat depressing.

To improve, operable louvres could be used to cature the beauty of light and shades.

Atrium or community plaza does not perform as good as we expected. The 4-storey high space is stuffy and warm because the full-height glass panel between plaza and terraces hinders the air flow.

A possible solution is to use monsoon window to replace the glass, so that the plaza is protected from rain and has good ventilation.

Annual Average Luminance of Selected Regions: 26882 lux

Annual Average Luminance of Entire Rooftop: 32156 lux

Rooftop

Surface

Through it is still bright at rooftop especially in the afternoon, the pergola shading devices have effectively reduce a significant percentage of sun glare, as evident in the clear color distinction between the shaded and unshaded areas.

Rooftop Garden at Southeast Corner

Climatic Performance Test @Terraces

Self-shading effect of the C-shape massing is justified, as shown in blue regions. While unshaded terraces appear very bright and hot in the simulation result, the actual situation is better with the trees.

Recession in facade reduces a portion of sun glare but black blinds are still needed mainly in the afternoon. The necessity of using blinds is illustrated on the left, as they lower the brightness by over 80%.

Annual Average Luminance without Blinds: 10717 lux

Annual Average Luminance with Blinds: 1871 lux

Annual Average Luminance without Blinds: 9438 lux

Annual Average Luminance without Blinds: 7733 lux

Inside and outside the plaza has a large difference in luminance level. Thus the plaza may feel dark due to such comparison, though it is mostly above 1000 lux. Similar to corridors, blinds are incorporated but this time the shading effect of blinds is less obvious as they can only cover two fifths of the height.

SECTION 2 | 4 CONDITIONS Forest

Park

Bishan Park

Aircon Alley

Little India Chinatown

Sealed Surface

Bayfront