The old NAAFI base was used throughout the Second World War as the front line of national defence. At one stage it housed three squadrons, often made up of the survivors of other squadrons that had been reduced by losses in action. After its closure in 1978 the Grade II Listed building fell into disrepair and became something of an eyesore. Plans were successfully put forward to not only restore and preserve an important part of history, but to refurbish the former NAAFI building for its new chapter as an independent secondary school. The buildings Listed status posed challenges for the developers. Unispace Goldal consulted Selectaglaze, the specialists in secondary glazing to provide a discreet solution suitable for this unique Listed building. On the circular windows, Selectaglaze used the Series 46 fixed unit, with its discreet slim frame with neat cover channels that conceal the fixing. All secondary units were finished in white powder coated paint to match the existing frames, making them an unobtrusive adaptation. In total, Selectaglaze installed 70 units, using 4 different product types to match the existing primary window styles and sight lines.