Advance Glazing System – Energy Efficiency Approach for Buildings a Review

Energy conservation and energy management has become a matter of concern since last few decades. Window and glazing plays an important role in building energy management. In this regard, glazing technology has gone through rapid evolution. Numerous research and development in glazing fabrication techniques have led to a wider range of design options. Visual transmittance of the glazing unit is important as it determines the amount of daylight through the glazing unit. So, the desired criteria of a glazing system from energy savings point of view is that it should possess higher transmittance in visible spectrum and lower transmittance in infrared region. To check the performance and durability of the glazing systems, thorough research works has been carried out under different conditions. In this paper, an overview of different types of glazing units and their performance has been discussed. A comparison regarding thermal properties of different types of glazing units is also carried out.