Facade products from Kawneer architectural aluminium systems have provided a “key” aesthetic in phase one of a ten-year redevelopment of an estate in a Royal London Borough, the company says.Kawneer windows, doors and AA100 zone and mullion-drained curtain walling with 50mm sightlines feature throughout the elevations of Block 1 of Portobello Square in the Wornington Green estate, North Kensington.The Kawneer …