Low-E Coatings
Low-emittance (Low-E) coating are microscopically thin, virtually invisible, metal or metallic oxide layers deposited on a window or skylight glazing surface primarily to reduce the U-factor by suppressing radiative heat flow. The principal mechanism of heat transfer in multilayer glazing is thermal radiation from a warm pane of glass to a cooler pane. Coating a glass surface with a low-emittance material and facing that coating into the gap between the glass layers blocks a significant amount of this radiant heat transfer, thus lowering the total heat flow through the window. Low-E coatings are transparent to visible light. Different types of Low-E coatings have been designed to allow for high solar gain, moderate solar gain, or low solar gain.
Ref.: Window Technologies
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- Cwallpinoy
- Worked in a Facade Consultant Company. Started career in Facade Design in a Facade Contractor/Alum. Extruder/Finish Applicator Company in 1987.
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The information provided in this page has not been checked by an independent person. Use this information at your own risk.
All product names, trademarks and company names which appear on these web pages are used exclusively for editorial purposes and are subject to the copyright of the companies concerned. All rights reserved.
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2 comments:
Is it possible to apply low-E coatings on existing glass?
It would be very useful to improve existing glass thermal performance at a lower cost than replacing windows, especially large and thick storefront windows.
Ideally it would come in spray or paint.
Who are the manufacturers of these low-E coatings?
Thanks in advance.
No, it can not be applied on existing glass surface either inside or outside as it can easyly be scratched. Low-E is applied to the surface no. 2 of IGU or laminated glass during manufacturing. There are a lot of manufacturers that can be found in the search option of this website.
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