
A double pane, also known as double-glazed or insulated glass, refers to a window or glass panel that consists of two layers of glass separated by a space filled with air or inert gas, such as argon. These layers are sealed together around the edges to create a single unit. Double pane windows provide better insulation compared to single pane windows because the trapped air or gas acts as a thermal barrier, reducing heat transfer between the inside and outside of a building. They are commonly used in residential and commercial buildings to improve energy efficiency and comfort by reducing heat loss in cold weather and heat gain in hot weather, as well as minimizing noise transmission.