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Why is My Double Glazed Window Misted? Double glazing is a fantastic method to increase the efficiency of your home, and to ensure optimal energy efficiency. If you notice your windows leaking, it is an indication of a broken window seal. This can allow moisture to enter the insulation portion of your window. This could drastically decrease the performance of your windows. Luckily, this issue is quite easy to resolve. What is it? There may be condensation on the outside of your double glazed windows from time to time, especially if it's very cold and windy. This is normal and a indication that your windows are working well, keeping the cold out and the warmth in. It can easily be wiped off, or leave it to go away on its own. If your double-glazed window has a tendency to mist on the inside though it is a more serious issue. This usually means that the seal on your double glazing has failed or 'failed' as it is referred to in the trade. When a sealed double glazed unit fails, or fails, moisture may get inside the two panes of glass that make up your window. The argon, xenon and krypton gasses that are employed in these units could also escape. When this happens the high density gases lose their insulation properties and your window is not sealed anymore. Natural wear and tear is among the primary reasons for seals to fail on windows. The constant expansion and contraction of double-glazed windows is caused by temperature fluctuations. Using abrasive chemical cleaners on your double glazing can also cause damage to the seal, and lead to it failing over time too. If the seal on your double-glazed windows is damaged, it means that 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 often referred to as a 'blown window' and can result in costly energy bills during winter. This issue can be addressed by replacing the glass units in your double-glazed windows. This is a more cost-effective alternative than replacing the entire window. It can also guarantee that your home will be adequately insulated and sealed. You should also ensure whether the company that is that is replacing your double-glazed windows are insured. This will safeguard you in case of any unexpected issues. What is the reason for this? Condensation from double glazing can lead to the growth of mildew on window frames which is not just ugly, but also dangerous. In extreme instances, black mould can grow 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 falls below the dew point – the point at which water vapour in the air turns into liquid water. It is therefore common to see it at the night or 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 gets colder and humidity levels increase. It is generally a natural phenomenon, and doesn't mean that your double glazing has problems. If the condensation appears only on the outside of the window and disappears when sun rises there is no reason to be concerned. Double-glazed windows that are damaged or defective do not provide the insulation as they should, which can result in higher costs. If the seals have been damaged, water can get in between the two panes and cause an evaporation. The reasons that lead to misted double glazing can be numerous but there are a few main causes worth checking out for: The first indication of a problem with your double glazed windows is when you start to observe condensation developing on the inside of the window. The next step is when you observe water stained or damaged glass, which could be caused by moisture that is trapped between the two panes of glass. This could be due to a problem during installation or even wear and tear that occurs over time. In some cases, this could be an indication that the window is at the end of its lifespan and requires replacement to improve the overall insulation performance of your home. How can I get rid of it? Double glazing can improve the energy efficiency of your house and the look of your windows. But, if your double glazing is smudged or cloudy, it could ruin the look of your windows. The solution to this problem is simple and inexpensive. Misted double glazing is caused by condensation and water entering the space between the panes of your double-glazed window, which should be sealed with airtight. This is usually a sign that your window seal has broken and needs to be replaced. It is common for double glazed windows to have condensation on the outside, especially in cold weather. This happens when the glass is chilled by air that has reached its dewpoint. When this water vapour hits the cold surface of your windows it is visible, and then disappears once the glass warms up again. It is usually only when your double glazed windows are leaking that it is an issue and something has to be done to fix it. The condensation indicates that the seal between your two glass panes is damaged. It can be a sign of a poor installation or the use of chemicals in cleaning products. There are a few ways to eliminate the condensation that forms on your double-glazed windows. You can wipe them with a damp cloth to get rid of the condensation. You can spray them with a glass cleaner that is specifically designed to eliminate the haze that is caused by condensation. You can also utilize a dehumidifier in your home, this will help to absorb moisture and stop it from accumulating on windows. Professionally-designed solutions can be used to fix double glazed mist. This involves drilling a hole through one of the windows and pumping a desiccant into the window. This will aid in drying out the glass and stop future problems. This is an extremely risky process and should only be carried out by an expert. This procedure will restore your double-glazed windows to their original state and will ensure that you don't face issues with misting or condensation in the future. What is the best choice? Condensation is a common feature on the outside of new double-glazed windows. This is a sign that windows are operating efficiently and can be easily wiped away. The condensation is caused by the temperature difference between the air inside the house and the cold glass of the windows. If you notice condensation between the double-glazed glass panes this is not normal. misted sealed units should take immediate action. The window seal has broken and moisture is able to get into the space between the glass panes. This could cause windows to lose their insulation properties and reduce the energy efficiency of your home. The most effective way to minimize condensation on double-glazed windows is to increase the ventilation inside your home. Opening the windows every day will reduce humidity levels and allow fresh air to circulate around your home. It is recommended to 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 air and keeping it from condensing onto cold surfaces, like window glass. Another method of reducing condensation in double-glazed windows is to clean the glass with an anti-fogging product. These products are readily available in most hardware stores and are designed to prevent the accumulation of moisture. However it is important to remember that these solutions are not permanent and could need to be reapplied regularly. If your double-glazed windows are covered by warranty, contacting a professional installer is the best method to resolve the issue. A FENSA-regulated company will provide a 10-year guarantee and follow the UK Building Regulations.