Architect and Builder April/May 2019 | Page 43

the structure is a constant source of frustration on construction projects and results in abortive work and programme implications. On a fast-track programme such as this, it was essential to adopt a protocol to minimise clashes on site. FAƇADE Curtain Wall A unitised curtain wall consisting of an alu- minium framed, flush glazed system features Park Square both transparent and opaque areas. Opaque spandrels are located in front of slab edges and at steps. The glazing is bonded to the frame with structural silicone and forms the weather line of the building. Level 5 includes a facetted curve in plan. The curtain wall extends past the roof slab and some vertical edges to form cantilevered wings. The curtain wall is Solar E Clear double glazed. 43