secondary double glazing
If your windows are in pretty good condition but you just want to improve your home’s heat and sound insulation, then secondary double glazing might be a better bet than standard double glazing in terms of price. Secondary double glazing is simply fitting another window to your existing window. It has the benefit of retaining the look and character of your home and is, therefore, allowed in conservation areas. Secondary double glazing has particularly good sound insulation benefits. To increase this sound insulation you should choose a different thickness of glass than the thickness of the existing window as different thicknesses block out different sound wave lengths. Secondary double glazing also offers improved heat insulation. The air gap between the two panes of glass reduces the amount of heat that can escape as air is a poor conductor of heat. Secondary double glazing can also be fitted fairly easily and cheaply as it is not as specialist a job as standard double glazing replacement.