We are selling our home, we have two upper panels in two different windows that have lost their seal. Some days they look cloudy but mostly it is just hazy. We have not replaced the windows because they are in an out of the way spot and don't significantly increase the heating and cooling costs.
An outside inspector for the buyers pointed these out with the comment "window frame should be caulked by a qualified professional". there is a rubber seal on the outside of the window that seals the glass from the inside of the house and I don't see the benefit of caulking the inside of a wood clad window just to satisfy this inspector.
Other than replacing both sets of glass any suggestions?
This cloudy is what is known as fogging. This means that the manufactures seal has broke and air has leaked into the sealed unit. The fogging is from moisture contained within the air. The leak may be caused by a very small hole in the seal or a crack or damage to the glass or seal. If the window is not cracked or damaged, the thermal properties of the window may have changed little from the original installation.
It is not essential to have the windows repaired, but the view out the fogged panes will be a nuisance and you may lose a buyer. So it is best to replace them; the cost of just replacing the two windows panels may cost more than two new windows units.
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