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Q: Do I have blown seals?

A: This phenomenon is found only with thermal pane windows (not single pane or storm windows). When two pieces of glass are sealed together at the factory, an inert gas (usually argon) fills the void between the two plates. Over time this seal may no longer function and the regular air may fill this area. With the air comes moisture and eventually, heating and cooling causes this moisture to collect on the in between surfaces of the thermal pane. Over time, this moisture worsens from a light fog to heavy droplets and becomes more and more visually objectionable. Occasionally people expect us to be able to deal with this, but of course we cannot. The windows must be replaced to correct the problem.

 

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