Abhishek Bangre¹, Rupesh Surwade¹, Mohammad Arif Kamal^2,

The emission of carbon dioxide has great influence on the environment and has a very large part to play in global warming issues. In the building and construction industry, CO₂ is the largest environmental concern. This has prompted research into developing new building systems and technologies, to mitigate the green house gases, which are depleting the ozone layer. Windows are the most vulnerable part of building envelope where the solar energy directly penetrates into the building and the heat gain and loss occurs at this interface. Double-glazed windows are very effective in keeping inside temperature isolated from outside; thereby, saving electrical and thermal energy. In many studies, it has been found that the double glazed windows are more energy efficient than normal Single glazed windows. It has been observed that Double glazed windows are perfect for Indian weather conditions, especially in North India where there are scorching summers and extreme winters. This paper presents an overview of window glazing techniques to optimize the energy savings in buildings. It also discusses the relationship between R-value and double glazed windows and analyses the benefits of the application of double glazed windows for energy conservation in buildings in particular and environmental sustainability as a whole.

double glazed windows, building technology, heat transfer, energy conservation, sustainability