Architect and Builder November/December 2018 | Page 57

façade strategy with an exoskeleton of shaped louvres, creating a mask of various treatments in response to solar exposure and internal functionality. These deliver a vertical filter on the east and west, horizontal on the north and are absent on the south to promote a slick, longitudinal projecting glazed bay. The extensive curtain wall enveloping the atrium enjoys a veiled quality to the east, but this dematerialises on the south to announce entrance and promote focussed ocean views. External verandas on the north east corner and south edge capitalise on sea views and connectivity to the office park landscaping, being expressed as subtractive elements in the overall form and animating the building. ABSA Ridgeside The entire structured parking podium is clad in vertical tubular screens designed to reduce the scale of this substantial element, promote natural ventilation and simultaneously integrate with the office component above. Complimenting the layered façade is a continuous over-sailing roof which is dematerialised by a broad, visually light, louvred rim to deal with the north sun. The overall impact of this veiled approach is thus one which derives from applying simple and effective screening devices over a relatively ordinary and economical inner skin. The exterior is largely rendered in silvers and greys with a charcoal base connecting the elevated offices to the ground, thus yielding a limited material palette and somewhat understated composition. 57