Today, a little more than half of American homes have them ... That’s the principle of double-glazed (aka double-pane) ...

Cleaning double-pane windows requires careful attention to avoid ... should be sufficient for most homes. However, commercial properties should be cleaned monthly or even weekly, says Conn.

Installing replacement windows can make your home quieter and less drafty ... true if you’re replacing leaky old single-pane windows. Many new double-hung windows are also easier to clean ...