Architect and Builder July/August 2015 | Page 39

By placing the building on a podium it also resulted in a powerful presence for the building which further reinforced the brief to create a strong identity for the tenant TYPICAL FLOOR PLAN Challenges Technical Services Area: One of the tenant’s subsidiaries, that works with large and highly specialised medical equipment, required a clean and secure way of receiving, storing and repairing their equipment. The challenge from a planning and architectural perspective was to address these requirements without compromising the design of the building. Ways of making the delivery vehicles completely secure and almost invisible were investigated, while ensuring that the route from the loading area to their Technical Services Area was also secure and invisible. In the end a solution of integrating the loading area into the design of the guard house and hoisting their equipment directly into the basement below was decided upon. Green Building The new Novartis Head Office is the first building in Waterfall City to be registered for a Leadership in Energy and Environmental Design (LEED) Silver rating. LEED is a U.S. Green Building Council rating system that focuses on the efficient use of energy and water, selection of green material and the establishment and maintenance of high quality levels of indoor environments. HVAC With HVAC being one of the largest single consumers of energy in a building, their mechanical engineers spent a great deal of time designing a highly efficient and effective system. There is a very sophisticated, multifunctional central air-cooled chiller that is positioned on the roof of the building. This chiller can produce ice, chilled and hot water and can recover heat. Adjacent to the chiller are a series of ice storage tanks. At night, when the system is not running at its peak (and when the outside air temperature is cool) the plant produces and stores ice that is then used to reduce the load on the system during the day. Together with this, the reticulation on each floor is designed on the principle of perimeter cooling/heating which forms an air curtain and cools/heats the air immediately adjacent to the façades where most of the buildings thermal heat gain/loss is experienced. Solar Energy 294 Photovoltaic Panels were installed on 700m2 of the roof. They are expected to produce 147,000KWh of energy per year or roughly 12% of building’s total energy consumption. Insulation Of course, one of the most effective ways to manage a building’s energy consumption is to ensure that it is properly insulated. Energy models were run right at the beginning of the project’s design phase. This was a very effective tool in understanding the affect of the local climate on different areas of the building. Double-glazing together with air-tightness tests were employed to ensure that we designed the building relative to its specific micro-climate. The end result was not only a drastically reduced load on the building’s systems but also vastly improved comfort levels for the building’s end-user. Water Consumption Reducing water consumption was also critical in ensuring the overall efficiency of the building. The plumbing system is designed with low-flow fixtures and fittings which manage the volumes of water consumed by the building. This is supplemented with a rainwater harvesting system. Rainwater is collected from the roof of the building via a Geberit Pluvia System and is stored in 5 x 5,000l JoJo tanks in the basement. Conclusion The building was delivered in just 13 calendar months largely thanks to a very effective and collaborative working relationship between Client, Professional Team and Contractor. The end product was a highly sophisticated building that delivered on the requirements of the brief while remaining uncompromising on quality. SOUTH WEST ELEVATION Novartis 37