If condensation collects between the panes in the window, it is not only an unsightly sight but can also indicate construction defects. So it would help if you got to the bottom of this. We explain the causes and effects of moisture and what you can do about it.
If condensation forms between the glass panes, this is an indication of leaky windows. The insulating effect is then no longer sufficient – regardless of whether with double or triple glazing. This phenomenon can occur, especially in old buildings, as older windows are not as well sealed or insulated as windows according to current standards.
How does condensation get between the window panes?
“When it comes to ‘steamed up’ windows, a fundamental distinction is made between the insulating glass that steams up from the side of the room or between the panes,” explains master craftsman Ulrich Opitz in an interview with Curiosity Insight. A tiny leak when gluing the panes can be enough for humid air to find its way into the window and turn into condensation. “This can happen especially with old windows that are filled with air,” says Opitz, who is also an expert on structural damage and a trainer at the DIY Academy. “The edge seal is broken down or changed by UV radiation,” says the expert. “Of course, the thermal insulation also breaks.”
Once moisture gets between the panes, it’s too late. It is difficult for the water to escape on its own. Suppose there are temperature differences, condensation forms between the panes. In contrast to moisture on the inside or outside, wiping with a cloth does not help with the disturbing droplets.
Different types of windows
Not all windows are the same. A distinction is made between different types:
Condensation on the outside of the windows
Condensation on the outside of the glass (or your window glass) is not a problem. On the contrary, it is a sign of good window insulation. Indeed, when a room is well heated, the external surface of the glass remains cold. When the outside air heats up and becomes charged with humidity, it condenses on this cold surface. It is not worrying; as soon as the window returns to the temperature of the outside air, the droplets will slide off and disappear. In the meantime, you can always intervene:
An anti-rain product
Most people are familiar with the use of rain products on their windshields, but it can also help reduce condensation on your windows. By applying a rainproof gel such as ‘Rain X’ to the exterior glass, you can minimize external condensation. This causes the water to collect and flow out the window.
To be patient
As the sun heats the windows, the condensation will evaporate. Just like dew evaporates from your car, it will disappear from your windows as well.
3. Condensation inside the window
Condensation on the inside of your windows is mainly due to excess humidity in the room. This excess can be caused by air laden with water after a shower, a sporting activity in your living room accompanied by intense breathing, or even when water is boiling for cooking in the kitchen. This condensation will take a long time to disappear; if it persists, you have a severe problem with the air circulation in your property.
Buy an anti-humidity product.
If you think there is excess moisture in some regions of your home, you can purchase a moisture repellant, such as DampRid, Mold Control, Starwax, or others. These products often come in buckets that you can place on your floor or in bags that you can hang up, usually in your closet. They will drive moisture from the air.
Bathroom and kitchen fans
Use the fans mounted in the wall of your bathroom and kitchen whenever you cook or take a shower. Showering and cooking release a lot of moisture into the air, and sometimes that moisture cannot easily escape from your home. The exhaust fans in your kitchen and bathroom help remove this moisture from the air.
Open your windows!
If it’s not too cold, you can open your windows. This will release some of the hot, humid air trapped in the house.
Increase the temperature
Raising the temperature of windows will reduce condensation on them. Condensation occurs when warm air hits a cold surface (the window). You can use blinds or curtains to increase window temperature.
Move your plants
Plants release moisture into the air. Therefore, if you have multiple plants near your windows, move them to another location to help reduce condensation on the windows.
Buy a dehumidifier
Buying a dehumidifier is an easy and expensive way to remove moisture from your home. If a complete dehumidifier, which costs between 300 and 400 euros, costs you too much, you can also buy a mini dehumidifier. Some dehumidifiers will need to be turned on and off, while others will automatically turn on when the humidity level in the house reaches a certain point.
4. Condensation in the middle of the panes
Condensation between the panes is a real problem. The double glazing is made to be super tight and does not let anything escape its internal cavity. The appearance of condensation between the panes then assumes the existence of a leak or a fault during installation. The danger of this type of condensation arises from the possible development of mold and damage that can affect frames and sashes and even harm health.
Try to clean the windows.
If you think there is condensation between the windows, be sure to clean them first. The blur can be caused by a build-up of products, such as cleaning products or grease (in the kitchen).
Replace the windows
Unfortunately, if you have condensation between the panes, you will need to replace the panes. This may or may not be possible, depending on the type, age, and manufacturer of the original window.
Replace the window
In some cases, you will not be able to replace the glazing, and you will have to replace the entire window. This is generally a good idea, especially if the windows are old.
If you are considering replacing the windows and doors in your home, consider our glazing business! One of our professional glaziers can answer all of your questions about window condensation and meet your window replacement needs.
Four tips against condensation
So that there is no condensation in the window, you should avoid moisture in the apartment. Air exchange is essential here. With these tips, you can prevent the formation of condensation and also mold: