The construction of the building demonstrates the versatility of concrete with three different methods used to build the concrete walls: Precast, Off-form and Permanent Formwork.
Precast concrete 200 mm thick was used on the western and southern facades with the southern façade panels employing a Reckli form face liner to produce a recessed textured pattern. Conventional grey concrete was specified with 32 MPa strength and Class 2C with the “C” suffix denoting colour control. These panels are all loadbearing.
The northern façade is constructed from Precast 100 mm thick utilising a white concrete manufactured from white cement with 5% white oxide, white sand and quartz aggregate. Off-form concrete was cast in situ using either traditional formwork or system jump form. Normal concrete was specified for all of the off-form with two alternate strengths: 32 MPa for the majority and 50 MPa for the specially shaped elements.
A permanent formwork system using Fibre Cement board as the form was used for internal walls with the Fibre Cement board being set, painted and utilised as the final outer surface of the wall. The concrete filled permanent formwork system provided the necessary acoustic rating between apartments without the need for additional acoustic insulation. Concrete walls naturally provide good noise suppression to ensure appropriate privacy in multi-residential homes.
All external walls were provided with thermal insulation installed in internal cavities provided by an additional wall leaf of metal studwork and plaster board.