Low E Glass

Low-e glass — also referred to as low-emissivity glass or insulating glass (“IG”) — is your choice for developments and projects where local energy ratings and building standards must be considered. There are a few different types of low-e glass, categorized by the type of coating and the degree to which they reflect certain energy wavelengths. Some low-e glass is designed to reflect both infrared and UV rays to help minimize harmful UV exposure, while other low-e glass is primarily concerned with preventing indoor heat loss and gain.


Finshes


Overview

Did You Know?

Emissivity is a measure of a material’s ability to re-radiate energy into a space. Every type of glass has an emissivity rating — when a normal glass window is exposed to sunlight, it absorbs heat, light, and UV rays, and radiates that energy into the indoor space. Low-emissivity glass, as you might guess, has a reduced capacity for absorbing and re-radiating heat and UV energy. It is common for a double or triple-paned window to incorporate at least one low-e pane to reduce excess heat energy.

Low-e glass works to reduce the unwanted side effects of natural light. Visible light generally occurs at wavelengths of between 380 and 780 nanometres. Ultraviolet (UV) radiation occurs at wavelengths just under 380nm (usually between 310nm and 380nm), while infrared light has longer wavelengths, usually beginning at a minimum of 780nm.

Both these types of energy can be detrimental at high concentrations and depending on the intended use and climate of a building project. UV radiation is responsible for sunburns and other undesirable long-term health effects, while infrared light produces a significant amount of heat energy. A room full of windows that absorb and re-radiate infrared rays will quickly heat up under direct sunlight. High quality low-e glass allows light within the visible wavelength spectrum (wavelengths between 380nm and 780nm) to pass through while minimizing the amount of heat passing from indoors to outdoors and vice versa.

Product Specifications & Availability
Coniston carries a wide variety of low-e glass. Contact us for more information on product sizing and availability.




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