First building in Hong Kong to be designed to LEED standards
The China Resources Building (CRB) is the first building in Hong Kong adopting Leadershp in Energy and Environmental Design (LEED) as the sustainable framework for building renovation. The building sustainable features have to be considered in a comprehensive manner and LEED considers building performance in five major catagories.
Located in the prime location in Wan Chai North Area, CRB is able to offer great community connectivity and provide convenient public transportation. To put a step forward, 57 bicycle parking and 27 shower facilities are provided to the building users.
In order to reduce the building water use, water-saving fixtures such as low-flow faucet with sensor control will be used. For landscape design, the native or locally adapted plants were chosen to help to cut unnecessary water usage and waste in more effective ways. Referenced to the LEED Standard (Per US Energy Policy Act 92), 13,000 m3 of water can be saved.
Apart from the aesthetic consideration, the building facade is also designed to ensure high energy performance through optimising and balancing the energy and daylight. Glazing system which allows only 5% of solar energy transmitted to the indoor is used.
The existing structural frame has been remained and reused for the CRB project so as to minimise the construction waste generated and the resources demanded. During the construction stage, At least 75% of the waste produced from this project was reused / recycled. As of Jan 2012, over 1,600 tons of construction waste has already been diverted from the landfill.
In the areas to be renovated of CRB, adhesives, sealants, paints, coatings and carpet system with low-emitting contents have been used. Hence, the potential of occupant exposure to irritating and harmful contaminants can be greatly reduced.
For fulfilling the LEED requirement, the outdoor air ventilation rates are increased above the minimum rates required by ASHRAE Standard 62.1-2004. DCV system is used to control the outdoor air flow rate at an optimum level such that the balance between the IEQ and energy consumptioncan be achieved.