Architect and Builder November/December 2015 | Page 28

GROUND FLOOR PLAN The podium level and top floor level’s facades are fully glazed, connecting seamlessly between inside and outside, and the main entrance to each building takes the glazing up to full height. The facade and glazed atrium have been articulated to ensure optimal light penetration throughout the office spaces, while carefully controlling both glare and heat gain, ensuring occupier comfort and energy efficiency. The top floor is recessed to create wraparound terraces, shaded by the crisp white projecting roof line. The depth of the setback was informed by GSSA solar shading requirements so that the roof provides adequate coverage for the fully glazed façade on this level. All of the glazing within the façade is double glazed toughened safety glass, with three panel types: clear vision panels, insulated spandrel panels, and solid aluminium 26 composite panels. The glass specification was devised by the façade engineers, LH Consulting Engineers in consultation with the sustainability consultants, PJ Carew in line with the 5 Star GSSA application. The horizontality of the structure is broken up in vertical glazing elements in the main façade, and by strong vertical structural elements. Dark grey aluminium fins are used to enclose the fire escapes and together with off-shutter concrete signage walls form the walls of the ‘forest’, providing solar screening and privacy for these spaces from the busy Ratanga Road. Sustainability Bridge Park has been awarded a 5-Star Green Star SA Office v1 Design rating by the Green Building Council of South Africa bringing to five the number of Green Star Bridge Park