façade typologies of the office floor plates . The result is that one wing of each building is clad with a single level of curtain wall , positioned below two levels of deep-cilled shopfront , which in turn , is located behind the aluminium brise-soleil .
The curtain wall is divided into a 2m wide module , while the shopfront is a smaller 1,200mm module . The brise-soleil is modulated to match the shopfront with 200mm wide extrusions offering a 16-20 % cover to the area of glazing . It is face fixed onto the protruding slab edges of the shopfront façades and span over the double level of the shopfront zones .
Both the flush-glazed , curtain wall façade and the shopfront façade incorporate spandrel panels , up to desk top height ( 750mm ), below the vision sectors of the respective panels . These are single-glazed and are insulated with mineral wool and nutec backing panels . Solar-E high performance glazing is utilised in the curtain wall system . The vision panels are double-glazed with clear solar coating and a frit pattern which reduces from 90 % at the curtain wall head , down to 0 % at eye level , on the outer panes . The inner panes are toughened to resist thermal stresses due to proximity of internal blinds and potential cold air from the perimeter cooling system .
The vision panels in the shopfront are grey , body tinted and double glazed , which matches the spandrel below . The top of shopfronts also incorporates a compensating channel which allows for expansion and contraction of the aluminium as well as differential vertical deflection between floor slabs , due to the large cantilevers . This distinction in glass type and colour , albeit risky , proved successful in creating distinct volumetric components in the finished product .
The ground floor of both office blocks is enclosed by full-height shopfronts . As a scaling device , a perimeter ‘ eyebrow ’ canopy wraps around the perimeter of the building at 2,800mm above the ground . It was formed in steel and clad in aluminium to match the brise-soleil . The
‘ eyebrow ’ is suspended from the underside of the first office level and extends around each block , terminating upwards over the entrances to form signage panels at the entrance of the building .
Sustainability Sable Park has achieved a 5-star Green Star SA Design office certification , as administered by the Green Building Council of SA ( GBCSA ) and is currently targeting the equal As-Built certification . The overall strategic sustainability focus , throughout the design process , was to incorporate the green principles of Bridgeways Precinct , within Century City .
To create a lower environmental foot print without compromising comfort , various approaches have been adopted . The double-glazed external building envelope was designed to allow increased levels of daylight to penetrate the floor plate while at the same time provide remarkable external views towards Table Mountain . All the shopfronts in the building are set back 700mm and protected by an outer brise soleil to allow
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