In layman’s conditions: The bigger the air gap (cavity) between your present window and The brand new secondary window, the higher the extent of noise reduction. Double glazing locations The 2 panes of glass close collectively into just one window frame and stops heat transferring with the narrow gap in https://elliotrwlxi.bloggip.com/26433903/top-guidelines-of-condensation-resistant-glazing-in-w1t