I was wondering if anyone on this board knew what this was on my rear windows. One of my neighbors said it might be a bad tint on my windows. Any suggestions on how to remove these stains would be greatly appreciated. Thanks.
looks like a failed seal or improperly assembled IGU. That wont clean off.
Bad low-e or failed seal.
This cannot be cleaned and will require replacement.
Unfortunately, that kind of stain will be impossible to clean off. YouÃ¢ÂÂll have to replace it. You can protect the glass on your windows by frosting them. If you donÃ¢ÂÂt want to go all the way with window frosting, you can have them partially frosted. You wonÃ¢ÂÂt need to use blinds anymore.
Its a seal failure, you need a new window. What brand of windows are they?
patrick, how is frosting the windows providing protection?