Brand-new double glazed windows are much costlier than secondary glazing. There is also a substantial volume of work linked to selecting, arranging, putting in, plaster mend, portray and cleansing up afterward. Secondary glazing (retrofit double glazing) operates precisely the same way as factory produced double glazing by providing a layer https://pub94814.mdkblog.com/40494053/the-2-minute-rule-for-secondary-window