Envelope Optimizations: Glazing SHGC

How does the Solar Heat Gain Coefficient (SHGC) of my glazing affect building performance?

The Solar Heat Gain Coefficient (SHGC) characterizes the ability of glazing to transmit or block solar radiation. SHGC is a factor whose value is between 0 and 1. A Solar heat gain coefficient of 0.7, for example, means that the window will transmit 70% of solar heat radiation.

Solar Heat Gain stands to increase your building's cooling loads in warm months and decrease your building's heating loads in cool months. Finding an optimum value is key to keeping these competing impacts in balance.

You can assess the relative impact that SHGC will have on your design through via the Plugin's Sankey diagram or by using the Response Curve feature in the Web App.  

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