Insulating glass is able to delay heat transfer between the external environment and the interior. Insulating glass perfectly protects from cold, heat and noise. Installation of such double-glazed windows is beneficial from both economic and environmental points of view. The space between the glass panels in the glass unit determines the diffusion coefficient, which in turn affects the thermal insulation characteristics. In addition, the manufacturer’s Trakya Cam warranty for a period of 10 years from manufacturing-related defects extends to the insulating glass. All double-glazed windows with insulating glass are made only from authorized dealers of Trakya Cam in accordance with the with the Turkish quality standard “TS 3539 EN 1279 Yalitim Cami Uniteleri” (Double-glazed windows). Double-glazed windows may be deformed due to the difference in air pressure at the installation site and at the production site. To prevent this situation, a hole is drilled in the window profile during the production of the glass unit. During installation of the glass unit, pressure is equalized and the orifice is closed with a special valve. Thus, any problems associated with pressure compensation in the glass unit are eliminated in advance. This process prevents negative consequences, such as deformation of the double-glazed unit with insulating glass.