The slightly ventilated cavity has a bespoke gasket designed to ensure sufficient natural ventilation of the cavity, while providing seal from external rain and noise. The design was supported by detailed FEM structural models of the façade including computational fluid dynamic (CFD) analysis to ensure the behaviour of the façade within the ambitious thermal performance targets.
Another challenge was posed bye the large cantilevering "wing wall" - at each corner of the building, the external skin of the façade is cantilevering by 1.5m from the slab edge. It consists of a bespoke reinforcing plate inserted within the transoms of the last unit acting as tensioning and compression distribution at top and bottom of the unit. These last unis required a bespoke launching trolley for installation, which we have designed and crafted in an artisal way.