Double Glazing Thickness in Millimetres

With double glazing, a professional will install an insulated glass unit (IGU) into the window frame. An IGU consists of two panes of glass and a layer of still air or inert gas in between.

So, the total double glazing thickness in millimetres (mm) encompasses the thickness of each pane of glass and the thickness of the gap in between.

Both the added thermal resistance you get from two panes of glass instead of one and the insulation effect of the airspace – which slows down the movement of thermal energy thus reducing heat loss – are what create the benefits of double glazing and lower your heating and cooling costs.

And, the thicker each of these elements are, the better performance you’ll get out of your windows.