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Why is My Double Glazed Window Misted? Double glazing is a great method to boost the efficiency of your property and ensure optimal energy efficiency. However, if misted up double glazing www.repairmywindowsanddoors.co.uk notice your windows leaking, then this is usually a sign of a broken window seal. This will allow moisture into the insulation section of your windows, which can decrease their performance drastically. Luckily, this problem is fairly simple to fix. What is it? You may see condensation on the outside of your double-glazed windows from time to time, especially if it's very cold and windy. This is a typical indication that your double glazed windows are securing the cold but also let in warmth. It can be easily cleaned off, or let it go away on its own. This is more serious if your double-glazed window mists inside. This is usually a sign that the seal on your double glazing has broken down, or 'failed' as it is called in the industry. When a double glazed seal unit breaks down or fails, moisture may be able to get into the panes of glass in your window. This can cause the argon, xenon or Krypton gas that is utilized in the windows to leak out as well. When this happens the high-density gases lose their insulation properties and your window is no longer a sealed unit. Natural wear and tear is among the main reasons that cause seals to fail on windows. The constant expansion and contraction of double-glazed windows is caused by changes in temperature. Double glazing seals can be damaged using abrasive chemicals on them. If the seal on your double-glazed windows is damaged this means warm air can escape between the glass panes, and cool air could enter which causes moisture to build up on the spacer bar in the glass unit. This is referred to as a “blown” window and can result in costly energy bills in winter. This issue can be resolved by replacing the glass units in your double-glazed windows. It's a less expensive alternative than replacing the entire window. It also guarantees that your home is properly sealed and insulated. You should also check whether the company that is who is replacing your double-glazed windows is insured. This will ensure your security in case of any unexpected issues. Why is it happening? Condensation inside double glazing isn't just unsightly but can also lead to mildew that will ruin timber window frames. In extreme circumstances, black mould can grow on window frames or cills. This isn't good for your family. It is crucial to know the causes of condensation in order in order to determine how to best deal with it. Condensation occurs when the surface temperature of a glass is below the dewpoint – the temperature at which water vapour from the air changes into liquid water. It is therefore common to observe it at night or in the early morning when the dewpoint is at its highest and the temperature of air is higher than the glass surface. Condensation within double-glazed windows is likely to be more common as the weather becomes colder and humidity levels increase. In the majority cases it is a natural occurrence and doesn't indicate any issue with your double-glazing. If the condensation only appears on the outside of the window and disappears once the sun rises, there is no reason to be concerned. Double-glazed damaged or broken windows won't provide the insulation as they should and this can result in higher energy bills. If the seals are broken, moisture could be able to get into the panes and cause a misting. The reasons that lead to misted double glazing are numerous but there are a few main causes that are worth looking for: When you see condensation on the inside of your window, it is usually the first sign that something is wrong. The next stage will be when you notice water staining or damage to the glass that could be caused by moisture that is trapped between the two glass panes. This could be due to damage caused during installation or just gradual wear and tear that occurs over time. This could mean that your window is nearing the end of its lifespan and requires replacement to enhance the insulation of your home. How do I remove it? Double glazing can enhance the energy efficiency of your home and also enhance the appearance of your windows. However, if your double glazing is smudged or cloudy it can spoil the appearance of your windows. Thankfully, the answer to this problem is easy and cost-effective. Double glazing that has mist is caused by condensation or moisture leaking into the space between your double-glazed windows that should be airtight. This is normally an indication of a broken seal inside your window and needs fixing. It is normal for new double-glazed windows to develop condensation on the outside, especially in cold weather. This happens because the glass is cooled down by the air that has warmed up and reached its dew point. This water vapour will become visible when it reaches the cold surface on your windows. It will disappear as soon as the glass warms back up. In general, it is the case that double-glazed windows are misting inside that this is an issue and something has to be done to fix it. This is because the condensation is signalling that there is damage to the seal between the two glass panes of your window and can be an indication of poor installation or the use of chemicals used in cleaning products. There are several ways to get rid of the condensation that forms on your double-glazed windows. You can wipe them 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 use a dehumidifier at home, which will take the moisture away and prevent it from building up on windows. There are professional solutions that can be taken to fix your double glazed window, which involves drilling a small opening in one of the windows and pumping into a specially-formulated desiccant which will help to dry out the window and avoid further problems. However, this can be dangerous and should only be done by a skilled professional. This solution will restore the double-glazed windows back to their original condition and ensure that you don't face any condensation or misting issues in the near future. What is the most effective solution? It is normal for double glazed windows to have condensation on the outside surface of the glass panes. This is a sign windows are operating efficiently and it can easily be cleaned away. The condensation is caused by the temperature difference between the air inside the house and the cold glass surface of the window. However, if you have condensation between the panes of glass that make up your double glazing, it is not normal and must be addressed immediately. The window seal is broken, and moisture can enter the gap between the glass panes. This can cause the windows to lose their insulation properties and impact the energy efficiency of your home. The most effective way to minimize condensation on double-glazed windows is by improving the ventilation of your home. You should open your windows at least once a day to let fresh air in your home and decrease humidity. It is recommended to also use extractor fans in areas that produce lots of moisture such as kitchens and bathrooms. Dehumidifiers are also helpful in actively taking excess moisture out of the atmosphere and preventing it from condensing onto cold surfaces, like window glass. Cleaning the window glass using anti-fogging solutions is a great method to reduce condensation in double glazed windows. These products are available in most hardware stores. They are designed to reduce moisture build-up. It is important to remember that these solutions aren't long-lasting and need to be applied periodically. If your double glazed windows are still covered by warranty, the most effective way to fix any issue with misting is to contact a professional installer. A FENSA-regulated business will offer 10 years of warranty and will adhere to UK Building Regulations.