08-14-2014, 06:51 AM
Low-E glass
Is an innovative coated glass that prevents heat from escaping during the winter and reduces the amount of heat that enters a building in the summer. It is used widely in residential, commercial and industrial applications. Similar to solar reflective glass, low-emissivity glass (commonly known as low-e glass) relies on special coatings to achieve its high performance in principle. Low-E glass is able to selectively reflect the invisible long-wave infrared or heat while letting the visible light in.
The low-e coating allows for exceptionally high visible light transmission of up to 70% as compared to 79% in clear glass while sustaining high performance in solar insulation by reducing infrared transmission and solar heat gain. The use of low-e glass can substantially reduce the heat gain within a building and hence its energy consumption for air-conditioning. Low-E coating on tinted glass would reduce glare and improve its thermal performance.
DGU (DOUBLE GLASS UNITS ):
low-e glass can also be used in DGU units. When short-wave infrared energy strikes the tinted exterior ply glass, it is absorbed and converted into long-wave infrared or heat.
By applying a low-e coating to the second surface of the DGU unit, the heat is re-radiated back to the exteriors, thus reducing the heat gain potential into the building interior.
![[Image: low-e-glass.jpg]](http://www.frontdesk.co.in/big/low-e-glass.jpg)
Is an innovative coated glass that prevents heat from escaping during the winter and reduces the amount of heat that enters a building in the summer. It is used widely in residential, commercial and industrial applications. Similar to solar reflective glass, low-emissivity glass (commonly known as low-e glass) relies on special coatings to achieve its high performance in principle. Low-E glass is able to selectively reflect the invisible long-wave infrared or heat while letting the visible light in.
The low-e coating allows for exceptionally high visible light transmission of up to 70% as compared to 79% in clear glass while sustaining high performance in solar insulation by reducing infrared transmission and solar heat gain. The use of low-e glass can substantially reduce the heat gain within a building and hence its energy consumption for air-conditioning. Low-E coating on tinted glass would reduce glare and improve its thermal performance.
DGU (DOUBLE GLASS UNITS ):
low-e glass can also be used in DGU units. When short-wave infrared energy strikes the tinted exterior ply glass, it is absorbed and converted into long-wave infrared or heat.
By applying a low-e coating to the second surface of the DGU unit, the heat is re-radiated back to the exteriors, thus reducing the heat gain potential into the building interior.