All Sections
Sustainable Site Planning Strategy
Zero Carbon Design Strategy
Building Materials Strategy
Zero Carbon Design Strategy
Passive Design
Light Shelves
Light shelves are a system based on sun path geometry used to bounce light off a ceiling, project light deeper into a space, distribute light from above, and diffuse it to produce a uniform light level below.
ZCB's light shelves are strategically positioned at an angle of about 20 degrees to reflect light to the centre of the building, thus distributing light to areas further away from the windows. The light also bounces off the ceiling to the floor area.
Shading perimeter zones and distributing daylight to central zones.
Ceiling without projecting beams to enhance internal light reflection.
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Any opinions, findings, conclusions or recommendations expressed in this material/event do not necessarily reflect the views of the Government of the Hong Kong Special Administrative Region, the Environment and Conservation Fund and the Environmental Campaign Committee.
What is ZCB?
ZCB is the first Zero Carbon Building in Hong Kong with energy plus status and net zero carbon emissions on an annual basis. It was developed by the Construction Industry Council to showcase state-of-the-art low carbon building design and technologies to the industry locally and internationally, and to raise community awareness of low carbon living in Hong Kong.
In recent years, environmental problems like global warming and resource scarcity have become important issues and energy conservation plays an important role in alleviating these problems. Through integrated passive building design and energy efficient active systems, ZCB minimizes energy consumption and demonstrates the balance between nature and the built environment.
ZCB also generates on-site renewable energy from photovoltaic panels and a tri-generation system using biofuel made of waste cooking oil to meet its energy consumption needs.. Beyond this, ZCB exports surplus energy to offset the embodied carbon from its construction process and major structural materials. ZCB is the blueprint for promoting the adoption of low carbon design strategies and technologies for future buildings.
Mirror
On the southeast facade, the light shelf has a system of mirrors that deflects direct sunlight onto the ceiling, illuminating the surrounding areas while shielding against direct glare from the sun.