When choosing double-glazed windows, it’s not just the price (although it’s an important parameter) that you should pay attention to, but also other characteristics. These may be the size, shape, type of profile, and brand. The number of layers also affects your choice. Among the most commonly used windows are double-layered and triple-layered structures, which are also called single- and double-chambered windows, respectively. Let’s analyze their composition, differences, advantages, and area of application.