Double glazing is made by sealing two panes of glass into a profile and filling the space between them with a gas (argon, xenon or krypton) to create an insulating barrier. If the insulation between the two panes fails, moisture can enter the double pane unit, causing condensation and eventually fogging of the window. Condensation or condensation in double-glazed windows can cause health problems. In severe cases, black mold can form on window frames and walls. Spores of this mold can lead to respiratory problems. In addition, the lack of proper insulation and sealing causes the profile to be damaged in the long run.
The purpose of this article is to address the main causes of condensation and explain solutions that can help you prevent or eradicate it.
What is condensate?
Condensation is the conversion of a vapor or gas into a liquid. Occurs when the temperature of an object (such as a glass) is below the temperature at which air must be cooled to reach saturation, known as the “dew point”.
The “dew point” varies depending on the amount of water (humidity) in the atmosphere. This means that condensation can still occur at higher temperatures if moisture is present. In cold weather, condensation occurs even if there is relatively little moisture.
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Types of steam congestion
Steam from outside the glass
If you see condensation on the outside of your double glazing, this is a key indicator that your double glazing is working perfectly well and is energy efficient. This state shows that the heat inside the house is preserved and at the same time the cold air remains on the other side of the window.
Steam inside the glass
If you see condensation and moisture on the inside of your windows, it does not mean that there is a problem with your double-glazed windows, but rather that the air conditioning and humidity in the house have weakened. This problem occurs when, for example, you have spread wet clothes inside the house or you have taken a shower.
To solve this problem, open a window a little or turn on an air conditioner to increase the air flow in the house and let the warm air out, finally, condensation and moisture accumulation in the house will be minimized.
Steam is created between two glasses
If you see steam between the two panes of glass, that’s an important sign that the double-glazed glass isn’t working as it should, and that’s cause for concern. The reason for this problem can be the deterioration of the window seal; In this case, the cold air easily passes through the first window and stops in the second window. In fact, this window is considered single-paned. Therefore, it is better to check and fix this issue as soon as possible by double-glazed glass repairmen.
The main reasons for the failure of double-glazed window insulation
Wear and tear: There are many reasons why insulation fails, but the most common is due to wear and tear. In older or lower quality windows, the caulking used for insulation (which is sometimes just a rubber band) may be of poor quality or loosen over time. If the under-glass and the sealant that is supposed to hold the glass in the frame is damaged, moisture and water can enter the frame.
Also, as the temperature inside and outside the house increases and decreases, the gas inside the double-walled unit expands and contracts, putting pressure on the seal. This issue over time causes the insulation to weaken and break. Once broken, the continuous expansion and contraction process allows moisture to gradually enter between the panes and vaporize.
Spacer: Another reason you may see condensation in double-glazed windows is because of a defect in the “Spacer” tape. Most double-glazed windows now have a “spacer” between the two panes of glass; which is filled with desiccant, a highly absorbent material that absorbs any moisture in the space between the glasses. If there is even the slightest flaw in the insulation, this desiccant can quickly absorb any moist air or water that enters. When this substance loses its ability to dry or becomes saturated, moisture appears as condensation or condensation.
Poor installation: Improperly installed double-glazed windows may allow moisture to seep in, resulting in condensation.
Cleaning chemicals: Using strong solvents and powerful chemicals to clean windows and their surroundings can cause the sealant to deteriorate over time. which increases the possibility of steaming windows; Because moisture can penetrate into the unit.
How to prevent double-glazed windows from fogging
The appearance of steam in double-glazed windows is both annoying and harmful. Unfortunately, this means that heat (which you pay for) is escaping your home. If you see condensation, moisture, or a lot of water between the two panes of glass, the seal is probably completely gone. To solve this problem, the two main solutions are repair or replacement.
If you notice the problem in time and contact the repairman; You can solve this problem by repairing the insulation between the glass. However, the only way to ensure that such a problem does not happen again is to replace the entire window unit with a new one.