How does double glazing insulate a house?

Double glazing insulates a house by incorporating two panes of glass separated by a layer of air or gas, such as argon, which acts as an insulating barrier. This design minimizes heat transfer, reducing the amount of heat that escapes in winter and preventing heat from entering during summer. Additionally, the trapped air or gas between the panes dampens sound, providing acoustic insulation as well. Overall, double glazing enhances energy efficiency and comfort in a home.