I've replaced a few but I wonder if these could be fixed? I thought of trying drilling a few mm hole at say bottom right hand corner and another at top left hand corner and blowing warm air through in the hope of clearing the condensation, then seal holes. (Might have to be repeated at intervals.) Any thoughts?
misted double glazed windows
- Thread starter elcaro
- Start date
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It is possible to sort out, A small hole is drilled in the glass (can be done from outside in most cases) and a tiny vent installed.
JohnD
Party? What party?
the drilled hole does actually work 
and you can do it with a tiny diamond bit
but modern glazed units are often toughened glass that will craze
in the old days before sealed units, if you made your own double glazing, you vented to the outside (cold air is drier than indoors air). You only need a tiny hole to equalise pressure as it changes with temperature, and I can describe how to do it if you want. The sidelight beside my front door is still done that way and is always mist-free.
and you can do it with a tiny diamond bitbut modern glazed units are often toughened glass that will craze
in the old days before sealed units, if you made your own double glazing, you vented to the outside (cold air is drier than indoors air). You only need a tiny hole to equalise pressure as it changes with temperature, and I can describe how to do it if you want. The sidelight beside my front door is still done that way and is always mist-free.
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Proper advice. Don't get drilling holes
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