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building study

The essential features of the building and its services are: The facades: The facades allow a high degree of transparency while adapting to the external environment to control summer solar gains and winter heat loss. The amount of glazing on each facade was engineered to maximise internal comfort. 'Active shading' in the form of deciduous trees and external shading is used to modulate the sunlight incident on the glazed facades to minimise solar gain in the summer, maintain natural light levels, reduce glare and maximise solar gains in the winter.

Summer operation: Wind-driven and stackdriven ventilation via windows and rooflights removes heat gains and controls temperatures.

Rooflights ensure adequate ventilation and natural lighting to even the most deep-plan areas. Quiet low-pressure fans will ensure adequate ventilation at all times - at minimal energy and capital cost. High floor-to-ceiling heights allow temperature stratification in the internal spaces, which improves stack ventilation and comfort at the occupied level during peak summer conditions. The highlevel openable windows on the external facades facilitate a night-cooling strategy.

This cools the building fabric at night to reduce peak daytime temperatures during the hot summer periods.

Winter operation: During sunny winter days the open facades maximise the benefits of passive solar heating. This will significantly reduce heating-energy requirements during the winter. Windows and rooflights are good quality, well sealed and double glazed to minimise ventilation heat losses. The roof has a very high level of insulation.

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