Architect and Builder Magazine South Africa July/August 2014 | Page 23

the HVAC plant and associated shaft areas were adjusted to the point that the extent of vision glazing was maximized without exceeding rational HVAC cost allowances. As environmental concerns were also a key consideration in both owner responsibility as well as tenant attractiveness, the design of the façade initially employed energy-saving measures such as aluminium light shelves within the façade glazing system, which reflect transmitted light into the deep space on the floor plates, effectively contributing to reduced life cycle costs. This wa ́