Architect and Builder Magazine South Africa Dec 2017 / Jan 2018 - Page 89

where possible within the site. The adopted building massing is designed to sustain the natural light reaching all streets. This approach supports the trees surrounding the site, sustaining the greenery and ecology in the city and providing natural shading in the summer. Projecting canopies at street level ensure all year weather protection for pedestrians and create solar shading to the extensively glazed Tsogo Sun shop fronts at street level. Sustainably protecting these areas from excess solar gain reduces the demands on artificial cooling. In contrast to the fully glazed façade approach, windows in the hotel are located within a generally solid façade to focus views while maintaining a passively sustainable building envelope. These windows are double-glazed with SolarVue solar control glazing. This limits heat loads on the 89