Replacing single-pane windows with double panes is helpful, however it’s a dearer and cumbersome process. Pre-2000s homes usually tend to have one-pane windows that supply much less of a noise barrier. More recent households are usually designed with double-pane windows, which encompass two levels of glass with air in between. https://garrettphxmz.blogoscience.com/32778159/the-basic-principles-of-soundproof-windows