5 May

Almost done now. Blown away by these, it’s less than -4 outside right now and still haven’t needed to put the heater on, room is about the same temperature as when we went to bed last night. The glass is Viridian Lightbridge, 4mm for each pane with a 16mm Argon gap, which is the optimum gap for insulation, for both heat/cold and sound. Using uPVC frames, the best framing material for insulation, maintenance and I think also appearance. I saw online yesterday these are the same windows used by The Block renovations.