Thoughts on Low-E coatings on windows?
Yolanda
22 days ago
last modified: 22 days ago
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oberon476
22 days agolast modified: 22 days agomillworkman
21 days agoRelated Discussions
Validating Low-E coating
Comments (3)Not sure why you would want windows with a green tint. Some manufacturers use an extra UV coating for windows that receive a lot of sun. I'm a little confused about the window stickers. All of my windows that are not solid large windows are double hung. What brand of windows do you have?...See MoreWindow World, argon & low-E windows?
Comments (21)earthwormies, Heat enters and leaves thru your windows in three different ways - conduction, radiation, and convection. When dealing with west-facing windows that are cooking you when the sun is shining on them your primary concern is radiation. You need to block the direct solar gain. Solar Heat Gain Coefficient or SHGC represents the percentage of solar heat that is directly passed (radiated) thru your window when the sun is shining directly on it. The lower the number the less direct solar heat gain. In your case you need a very low SHGC number. When the windows arrived they should have had an NFRC tag on the glass that listed the SHGC (as well as U-value and other ratings). Do you still have the tags or did anyone note what the ratings were? Using argon, or krypton, or any other gas between the two lites of glass does nothing to block solar heat gain; you need a low solar heat gain LowE coating to block radiant heat. I am very curious about Window World's claim that they couldn't gas-fill one window because it was too big? How big is that window? Do you know if your windows were manufactured using LowE glass?...See MoreLow-E coating
Comments (1)As long as the seal doesn't fail, the low E between the glass should last as long as the window. There are different types of low E, one has a greenish tint....See Morehigh SHGC values in CGI windows with low-e coating
Comments (3)These are NFRC (National Fenestration Rating Council) stickers. I believe the window has to be tested to carry a lower than default value. I think the SHGC of .55 is a default value so the other products with the lower number have been tested and the .55 products or sizes have not. Oberon would probably be able to answer this better....See MoreWindows on Washington Ltd
21 days agoWilliam Rossman
21 days agochispa
21 days agoBeverlyFLADeziner
21 days agochloebud
21 days agoYolanda
20 days agoYolanda
20 days agoShadyWillowFarm
20 days agooberon476
20 days agojane__ny
20 days ago
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