Solar Heat Gain Coefficient / Green Building & Sustainable Home Renovation Information & Advice

...heat back inside, improving its insulating value. South-facing windows are better to have a low-E coating with a low solar heat gain coefficient (SHGC) to allow beneficial solar heat gain in winter. North-facing windows are better to have high-insulation low-E coatings solely intended to reduce heat loss, as there will...

...solar heat gain. Solar Heat Gain Coefficient (SHGC): The Solar Heat Gain Coefficient is a scale from 0 to 100 that indicates the amount of solar gain you will get through a pane of glass. The higher the number, the better the solar gain. Energy Rating (ER): After U-value, SHGC and the various designs and materials list...