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Double glazing refers to two layers of glass with a small insulating gap between them, designed to reduce heat flow in either direction. This construction is commonly used in buildings, particularly in commercial and institutional sectors, to minimize heat transfer and prevent condensation on the glass. In residential buildings, especially in colder climates, double glazing is cost-effective for insulation. Modern advancements include heat-mirror glass, which further enhances insulation by reducing infrared radiation.123

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