ᐅ Condensation Between Window Panes in New Construction

Created on: 17 May 2018 12:40
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Paulus16
Hello,

I have the following problem:

In our single-family house, which is currently under construction, the drying phase ended over the weekend. Now it is time for painting and tiling work.

While ventilating, I noticed that many windows have water droplets between the panes. The droplets are mostly located at the bottom of the inner pane’s seal but between the panes, meaning I cannot wipe the water away.

What could be the reason for this? Is this a defect that I should discuss and report?

Thank you in advance.

P.S. The windows have triple glazing and warm edge spacers.

Close-up of a window frame with a black sealing strip and glass pane


Close-up of a hand on a window seal at the window frame
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Paulus16
20 May 2018 12:34
The window manufacturer says that condensation between the panes is not a defect and is due to construction moisture. My question: Is the space between the panes a cavity or, as Alex85 writes, filled with gas and must be tightly sealed, or is it allowed for water or moisture to enter and later escape?
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Alex85
20 May 2018 12:38
Take a look at the Wikipedia article on multi-pane insulating glass.
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Zaba12
20 May 2018 12:43
Let's be honest, have you ever considered water between window panes normal? Your window installer is an idiot and just doesn't want to deal with the hassle. To be fair, a defective window is not necessarily their fault. However, the repair and warranty are still their responsibility—unless you purchased the windows yourself, in which case they don’t have to do anything.
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Joedreck
20 May 2018 12:50
If it’s not tight, you might as well use single-pane glass. The principle of insulation here is that a stationary layer of gas is a poor conductor of heat. If this layer doesn’t remain still, the thermal performance is lost.
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Nordlys
21 May 2018 08:57
I don’t understand the construction carpenter either. It’s obvious that the glass will end up back on his table under warranty... so it should be done properly now and immediately. The site manager should also intervene here. Karsten
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Paulus16
21 May 2018 14:40
Nordlys schrieb:
I don’t understand the construction carpenter either. It’s obvious that the glass will end up back on his desk due to warranty... so why not do it properly right away. The site manager should also intervene here. Karsten
Exactly, me neither. It’s not his fault but rather the glass or window manufacturer’s, right?