Effervescent effect on window


  #1  
Old 08-10-23, 10:22 AM
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Effervescent effect on window

I have a large transom window that is about 3 years old and it has an effervescent look on the outside pane I can't clean up with regular clean er. I am not sure if when they redid my stucco they got something on it or if it is a problem with the window itself. It could be on the inside of the outside pane- hard to tell. Any ideas?

The only thing I can think is to try and clean it with alcohol or mineral spirits.


 
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Old 08-10-23, 10:28 AM
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I would think if it's on the outside of the glass you could feel it. If it's inside the double glazing it might be under warranty.
 
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Old 08-10-23, 10:43 AM
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Are you certain it's on the exterior of the glass, when insulated glass panels (IGU) loose their seal they take on a frosted look but it's in-between the panes meaning the unit has to be replaced.
 
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Old 08-10-23, 10:48 AM
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I am only sure its the outside pane. I can't really tell if it is on the inside or outside.
 
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Old 08-10-23, 10:56 AM
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Doesnt matter where it us but it's inside the sealed unit so you need to change the entire IGU.
 
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Old 08-10-23, 11:34 AM
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I have received energy efficient windows that were assembled incorrectly at the factory. The coating on the glass should be on the inside where it is protected in an oxygen free environment of argon. If the glass pane is assembled with the coating on the outside it oxidizes over time and becomes visible. Similar can also happen if the seal fails and air gets inside between the panes of glass. The coating oxidizes and becomes visible. The only fix for either situation is replacement.
 
 

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