The 20-storey buildings are clad with unitized panels in combination with precast panels, for a total of nr 3700 curtain walling units. This unitised system consists of aluminium and glass secured with external deep bead profiles, thus creating a continuous frame all around the precast. The units are trapezoidal in shape to fit the openings left in between the precast panels. To the vision panels we have adopted a triple glazed unit, TGU, with Low-E double coating, to achieve the Ug of 0.5 W/m2k. At slab level, spandrel units with metal panel are installed, incorporating an active louvre system for the ventilation of the apartments.
The units include trapezoidal openable vents, top hung and side hung, with restricted outward opening for safety. The crucial detail is the interface between the unit and the precast panel; a bespoke façade system has been designed to allow for the installation of the façade from the inside of the building.