Double-glazed windows are a category of insulated glass unit or IGU that majorly involves two parallel glass panes to construct a particular window system. Most IGUs are either double glazed or triple glazed with the former being the most frequently chosen alternative. Double Glazing Prices may vary according to the http://erickjarh60471.blogdigy.com/what-double-glazing-are-capable-of-doing-for-your-home-8952981