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Thread: Discoloration of window
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06-07-2011, 07:28 PM #1
Discoloration of window
Does anyone know what might be the cause of the bluish, red, and purple discoloration which appears at the center of this fixed pane double glazed window? Its tough to see from this picture but if you zoom in you should be able to see it. Thanks for any help you may be able to provide.
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06-07-2011, 07:32 PM #2
Re: Discoloration of window
steve
many terms used
failed insulated glass
fogged insulated glass
but the seal looks like it has failed
cvf
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06-07-2011, 08:27 PM #3
Re: Discoloration of window
Could it be a film, or a coating on the outer pane? It doesn't look like normal fog between the panes to me.
Last edited by John Kogel; 06-08-2011 at 08:25 PM.
John Kogel, RHI, BC HI Lic #47455
www.allsafehome.ca
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06-07-2011, 10:37 PM #4
Re: Discoloration of window
It's early stages of seal failure with low-e glass. The interior metallic coating is basically corroding. I would call it out as a failed seal.
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06-07-2011, 11:21 PM #5
Re: Discoloration of window
Some of the low E windows have a film suspended between the glass, though typically on higher end windows. That looks like a typical builder grade unit though so it may just be a failed seal.
Whatever the cause, the remedy is the same if it is between the panes. Replace it.
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