general information main parameters types of double-glazed windows storage and packaging design, installation and operation templates / requirements announcements tables shape shapes FOR CUSTOMERS: General information Insulated Glass Unit is a construction of two or three glasses connected through a spacer frame, sealed around the perimeter. The spacer has rows of holes inside the cavity of the glass unit and is partially filled with a desiccant (silica gel or molecular sieve). This is done to prevent the internal surfaces of the glasses from misting up. External sealing is performed in two steps: the first layer of butyl sealant and the second two-component polysulfide sealant. Polyurethane and silicone sealants can also be used for sealing. The inner cavity of the glass unit can be filled with inert gases argon or krypton in order to increase the resistance to heat transfer or sulfur hexafluoride to improve noise insulation properties. The latter is practically not used. In our production, only high-quality components of European production are used, which undergo constant incoming control and periodic tests in specialized laboratories. This allows us to manufacture double-glazed windows of European quality level with a service life of at least 20 years without compromising performance. The names of the component manufacturers speak for themselves: Glass - Pilkington, Guardian, AGC, spacer - Profil Glass, sealants - Fenzi, Kommerling, Tenax, Grace molecular sieve. This combination is specially selected and tested in the laboratories of the State Optical Institute for maximum compliance with the climatic conditions of the North-West region. The team of "City Glass" LLC wishes you warmth and comfort in the house protected by our products. 2002-2015 © CITY GLASS LLC MADE IN CITY GLASS