WHY ARE MY DOUBLE GLAZED WINDOWS FOGGY?

One of the most common reasons that double pane windows get foggy is due to a break in the seal. The seal is what keeps the two panes of glass together and creates an airtight barrier. When the seal is broken, moisture can enter the space between the panes and cause the glass to fog up.

foggy double pane window

HOW DOUBLE PANED WINDOWS WORK

Double pane windows are made up of two panes of glass with a space in between. The space between the panes is typically filled with air or argon gas, which acts as an insulator. The panes are sealed around the edges to create an airtight seal.

WHAT CAUSES A BREAK IN THE SEAL?

There are a number of things that can cause a break in the seal, including:

  • Changes in temperature: When the temperature outside fluctuates, it can cause the seal to break.
  • Poor installation: If the window was not installed properly, it is more likely to have problems with the seal.
  • Manufacturing defects: In some cases, the seal may be defective from the start.

How do I fix cloudy double glazed windows temporarily?

Drilling a small hole into the glass and sucking out the moisture from between the two panes of glass can be used to remove fog between the two panes of glass. This will remove the fog, but because the window is no longer sealed, the fog will eventually re-accumulate, and you will lose some of the insulating benefits due to the hole in the pane.

Replacing the Entire Window

If the IGU (insulated glass unit) is too far gone, the only way to fix it is to replace the entire window. This can be a costly and time-consuming process, but it is the only way to ensure that your double glazed window will be clear and free of fog.

Author

Dorian Dandan

Dorian Dandan

I am a professional glazier in Sydney providing glass replacement services and also the director of DOS Glass Replacement