4 ms·
To fog up, it has to pass water molecules, which are way larger than gas molecules. I've seen only a few IGUs fog up, all of them had clearly visible damage, an
by nnevod 2y ago
To fog up, it has to pass water molecules, which are way larger than gas molecules. I've seen only a few IGUs fog up, all of them had clearly visible damage, and they are ubiquitous here, with many 20+ years old.
And the IGUs themselves aren't very expensive either (unless they're over 1sqm individually), frames indeed are.
- datadrivenangel 2y agoMy parents redid their home with a dud batch from a company that offered 30 years guarantees. Company was out of business within 10 years and 20 years later ~60% of them are fogged. Still very energy efficient.
- WalterBright 2y agoThe seals on them degrade and leak. I've had a lot of them fog up with no damage.