How to Curb Various Forms of Condensation on Double-Glazed Windows

25 October 2017
 Categories: , Blog


Double-glazed windows are highly energy-efficient windows, but they are not problem-free. One of the problems that are common with these windows is condensation, which occurs when moisture builds up on the interiors, exteriors or between the glass panels. Knowing how to prevent condensation problems with your double-glazed windows can help keep your windows looking pristine and save you the hassle of wiping off the build up from your windows.

Here are key tips on how to handle various forms of condensation problems with double-glazed windows:

Condensation on the internal surfaces of double-glazed windows.

Condensation on the internal glazed faces of your window is caused by poor ventilation and high humidity levels within the building. Poor ventilation makes it difficult for moisture to escape from the building, resulting in formation of condensation on the internal surface of the glass. The condensation occurs when the warmer indoor air comes in contact with the colder surface of the glass. 

To remedy this, you need to maintain a cool and comfortable temperature within your house by ensuring proper ventilation. Consider opening your windows on hot sunny days to allow fresh air into your home and also prevent heat from building up and causing condensation on your glass interiors.

Condensation in the gap between the glazed panes. 

Air gaps between the glazed panes forms a vacuum, which reduces heat transfer. When moisture forms on the vacuum, it reduces its efficiency. Condensation on the gap may be as a result of so many different things including the following: drying concrete after construction, extremely hot weather and non-functioning/low-grade sealing, which allow moisture to enter the air gap. 

You are likely to run high energy bills if your double glazed windows are not properly sealed. This is because the air conditioner will struggle to regulate the room temperature while air escapes. You should, therefore, ensure immediate repair for your seal or replace the entire unit.

Condensation on the external surfaces of double glazed windows.

Rarely does moist air condense on the external surfaces of your double-glazed windows. When it does, often at night, it does not indicate any defection with your glazed windows but rather how well the units are thermally insulated. Quality units prevent air from escaping the inner glass across the vacuum to the cooler external pane, thereby preventing condensation on the external faces of your glazed windows.

Maintaining your double glazed windows properly is vital when it comes to dealing with condensation issues. Any condensation problem should be remedied immediately. This will allow your windows to function reliably and last longer.