Application of Glazing Coating for Window Retrofit in the Canadian Context

Windows offer lots of opportunities to the building occupants but also are responsible for significant energy load for the buildings, especially in the older buildings, due to heat loss in winter and heat gain in summer. One way of achieving better performance and save energy is to use the high-performance window. Which option between window retrofit and window replacement is right in Canada? A new glazing coating that can be used for windows retrofit is investigated. The purpose of the study is to research the improved spectral values obtained with this coating, and it's actual energy performance when applied to the existing windows of the buildings in the Canadian context. To reach the goal laboratory test data of the SNG SC coated sample glazing were collected first, then used for energy performance modelling, simulation and analysis. Keywords: Windows retrofit, SNG SC coating, Software’s, Energy analysis.