Low-E / Green Building & Sustainable Home Renovation Information & Advice

...low-emissivity (low-e) and heat-reflective coated film inside of an insulating glass unit with four insulating cavities inside the sealed air space. Image courtesy Southwall Technologies   The result of choosing the right suspended-film insulating-glass glazing unit is a super-insulated double-glazed window that weig...

...Low-E coatings (low emissivity): The low-E coating on windows refers to a metal oxide film which lets the sun's rays pass through, but at night reflects infrared heat back into the room. Low-E coatings slightly reduce the light and heat that will enter through your window, but losses are minor compared to the reduction...