Why is My Double Glazed Window Misted?
Double glazing is a fantastic method to boost the efficiency of your home and secure optimal energy efficiency. If you notice that your windows are misting, then it's usually an indication of a broken window seal.
This allows moisture to get into the insulation portion of your window and could drastically decrease the performance of your windows. Fortunately, this issue is quite easy to resolve.
What is it?
There may be condensation on the exterior of your double-glazed windows at times particularly when it's cold and windy. This is a typical sign that your double glazed windows are securing the cold and let in heat. You can wipe it away or let it clear on its own.
If your double glazed window is leaking on the inside it is more of an issue. This is typically a sign that the seal on your double glazing has deteriorated or 'failed' as it is known in the trade. The moisture can get inside the two panes of glass in the case of a double-glazed unit that has failed. The argon, xenon, or krypton gases that are used in these units can also escape. When this happens the high density gases lose their insulating properties and your window is not a sealed unit anymore.
Natural wear and tear is one of the main reasons that cause seals to fail on windows. The constant expansion and contraction of your double-glazed windows are caused by temperature changes. Double glazing seals are susceptible to damage by applying abrasive chemicals to them.
If the seal of your double-glazed windows is damaged, warm air can escape between the glass panes and cool air could enter creating moisture on the spacer bars within the glass unit. This is referred to as a "blown" window and could lead to expensive energy bills during the winter.
This problem can be solved by replacing the glass units in your double-glazed windows. This is a far cheaper option than replacing the whole window and it can ensure that your home is properly insulated and sealed. It is also important to ensure whether the company who is who is replacing your double-glazed windows is insured. This will protect you in the event of any unexpected issues.
Why is it happening?
Condensation in double glazing can cause mildew to grow on window frames, which is not only unsightly, but also dangerous. In extreme circumstances mold can form black on window frames or cills. This isn't good for your family.
Understanding the cause of condensation is essential to understand how to handle it. Condensation occurs when the surface temperature of the glass drops below the dewpoint - which is the temperature at which water vapour in the air transforms into liquid water. It is therefore common to observe it at night or in the early morning when the dewpoint is highest and the temperature of the air is higher than the glass's surface.
As the temperature gets colder and humidity levels rise condensation in double-glazed windows is more likely to occur as it forms much faster. It is usually a natural phenomenon and does not mean that your double glazing has problems. If the condensation appears only on the outside of the window and disappears when the sun sets there is no reason to worry.
Double-glazed windows that are damaged or faulty do not provide the insulation as they should, which can result in higher prices. If the seals are broken then moisture may get between the two glass panes and eventually cause the misting effect.
The reasons that lead to misted double glazing are numerous but there are a few major causes that are worth looking out for:
The first indication of problems with your double glazed windows is usually when you start to see condensation appearing on the inside of the window. Damage to glass or water stains caused by trapped moisture in between the two panes could be the next sign. This could be caused by damage from installation, or simply gradual wear and wear and tear. This could indicate that your window is nearing the end of its lifespan and needs to be replaced to enhance the insulation efficiency of your home.
How do I remove it?
Double glazing is a fantastic investment to improve the efficiency of your home's energy usage and the appearance of your windows. If your double glazing is cloudy or misted it could affect the appearance of your windows. Fortunately, the solution to this issue is simple and cost-effective. Double glazing that is misted is caused by condensation or moisture leaking into the space between your double-glazed windows that should be airtight. This is usually a sign that the window seal is broken and requires repair.
Condensation on the exterior of windows with double-glazed glass is normal, especially during cold weather. This happens when the glass is chilled by air that has reached its dewpoint. When this water vapour reaches the cold glass surface it is visible and disappears when the glass is warm again.
Generally, it is the case that double-glazed windows are getting misty inside that you realize this is an issue and something has to be done about it. The condensation indicates that the seal between the two glass panes is damaged. It can also be a sign of a poor installation or the use of chemicals in cleaning products.
To eliminate condensation on your double glazed windows, there are many ways that you can try. You can wipe them down with a damp cloth in order to eliminate the condensation. You can spray them with a glass cleaning solution that is specifically designed to eliminate the haze created by condensation. You can also install a dehumidifier at home, this will absorb the moisture and prevent it from accumulating on windows.
Professionally-designed solutions can be used to repair double-glazed mist. This involves drilling a hole into one of the windows, and then pumping a desiccant through the window. This will dry out the glass and prevent further problems. However, this procedure is risky and should only be undertaken by a seasoned professional. This solution will restore the double-glazed windows back to their original state and guarantee that you don't face any condensation or misting problems in the future.
What is the best choice?
Condensation is common on the exterior of new double-glazed windows. This is a great sign that your windows are operating well. It is easily removed. The condensation is caused due to the temperature difference between the air inside the house and the glass surface.
If you notice condensation in between the double-glazed glass panes, it is not normal. You should immediately take action. The window seal is broken, and moisture can enter the space between the glass panes. This could cause windows to lose their insulation properties, and affect the efficiency of your home.
The best method to reduce condensation on double-glazed windows is to improve the ventilation in your home. You should open your windows at least once a day to let fresh air in your home and reduce humidity. It is also recommended to utilize extractor fans in areas that generate lots of moisture such as kitchens and bathrooms. Dehumidifiers are also useful for actively eliminating excess moisture from the atmosphere and stopping it from condensing on cold surfaces, like window glass.
Another effective solution for reducing condensation in double-glazed windows is to clean the window glass using an anti-fogging solution. misted double glazed units are available in a majority of hardware stores and are designed to prevent the accumulation of moisture. However, it is important to remember that these products aren't permanent and may need to be reapplied regularly.
If your double-glazed windows are still covered by warranty, getting in touch with an experienced installer is the best option to fix the issue. It is best to use an FENSA regulated company as they will offer a 10-year warranty and abide by UK Building Regulations.