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Why is My Double Glazed Window Misted? Double glazing is a great method to boost the efficiency of your home, and to ensure the highest efficiency in energy usage. If you notice that your windows are getting misty it is an indication that the seal on your window has been damaged. This allows moisture into the insulation portion of your windows and cause a drastic decrease in performance. Fortunately, this issue is relatively simple to fix. What is it? You might get condensation on the exterior 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 letting in heat. It is easy to wipe away, or leave it to be cleared by itself. If your double glazed window is leaking on the inside it is a bigger problem. This is an indication of a damaged seal or malfunction in your double glazing. The moisture can get inside the two glass panes in the case of a double-glazed unit that has failed. The argon, xenon, or krypton gases that are used in these units may also escape. When this happens the high density gases lose their insulating properties and your window is not sealed anymore. One of the main reasons for a window's seal to wear out is normal wear and tear over the years. This is due to the constant expansion and contraction of gasses inside your double glazed windows when temperatures fluctuate. Double glazing seals can be damaged using abrasive chemicals on them. If the seal on your double-glazed windows is damaged, it means that warm air can escape between the glass panes and cool air can enter and cause the condensation of moisture to occur on the spacer bar within the glass unit. This is referred to as a “blown” window and could cause costly energy bills in winter. This problem can be solved by replacing the glass units within your double-glazed windows. This is a far cheaper option than replacing the entire window, and can guarantee that your home is protected and insulated. You should also check that the company replacing your double-glazed windows is insured. This will protect you in the event of unexpected problems. What is the reason for this? Condensation in double glazing isn't just ugly but can also cause mildew that can deteriorate wood window frames. In extreme circumstances, black mould can grow on window frames or cills. This is not good for your family. It is essential to know the cause of condensation to get to grips with the best way to handle it. Condensation occurs when the surface temperature of a glass is below the dewpoint, the temperature at which the water vapour from the air turns into liquid water. This is why it usually occurs during the night or early in the morning when the dew point is highest and the air outside is warmer than the glass's surface temperature. Condensation inside double-glazed windows will be more frequent as the weather becomes colder and humidity levels increase. It is a normal phenomenon and does not mean that your double glazing has an issue. If the condensation is only visible on the outside of your window and disappears as the sun rises, then there is no reason to be concerned about it. Double-glazed windows that are damaged or defective will not insulate as well as they should, which can result in higher prices. If the seals are broken then moisture may pass through the two glass panes and cause a misting effect. The causes of the problems that lead to misted double glazing are numerous but there are a few major reasons worth checking out for: The first sign of problems with 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 stains or damage to the glass, which could be caused by moisture that is trapped between the two panes of glass. This could be due to damage from installation or simply wear and tear. In some cases, this may be an indication that the window is at the end of its life and is in need of replacement to increase the overall insulation performance of your property. How do I get rid this? Double glazing can improve the energy efficiency of your home and the look of your windows. But, if the double glazing is smudged or cloudy, it can ruin the appearance of your windows. Fortunately, the solution to this issue is simple and cost-effective. Double glazing that has mist is caused by condensation or moisture entering the space between your double-glazed windows which must be airtight. This is usually a sign that the window seal has broken and requires repair. It is normal for new double-glazed windows to show condensation on the outside, particularly in cold weather. This happens when the glass is cooled down by the air that has heated up and reached its dew point. The water vapour will be visible once it reaches the cold surfaces on your windows. It will disappear when the glass warms up. Generally, it is only when double glazed windows are getting misty inside that it is an issue and something has to be done to fix it. This is because the condensation is signalling that there has been damage to the seal between the two glass panes of your window and could be a sign of poor installation or chemicals used in cleaning products. There are several methods to eliminate the condensation that forms on your double-glazed windows. You can wipe them with a damp cloth to remove the condensation. You can spray them with a glass cleaner that is specifically designed to get rid of condensation haze. You can also use a dehumidifier in your home, which will help to absorb moisture and stop it from accumulating on windows. Professionally-designed solutions can be used to repair 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 avoid further problems. However, this can be dangerous and should be undertaken by a seasoned professional. This method will restore your double-glazed windows to their original condition and will ensure that you won't experience any misting or condensation issues in the near future. What is the best solution? Condensation is common on the exterior of new double-glazed windows. This is a sign that your windows are operating well. It can be easily removed. The condensation is caused by the temperature difference between the air in the house and the cold glass surface of the window. If you notice condensation between double-glazed glass panes this is not normal. misted up double glazed unit should take immediate action. The window seal is broken and moisture has the ability to get into the space between the glass panes. This could cause windows to lose their insulation properties and will affect the efficiency of your home. The most effective way to minimize condensation in your double-glazed windows is to improve the ventilation inside your home. Opening the windows every day can help lower humidity levels and allow fresh air to circulate through your home. It is recommended to utilize extractor fans in areas that produce lots of moisture, like bathrooms and kitchens. Dehumidifiers are also a great option to actively remove excess moisture from the air and prevent condensation on cold surfaces like windows. Cleaning the window glass with anti-fogging solutions is a great way to reduce condensation in double-glazed windows. These products are available at most hardware stores and are designed to prevent the accumulation of moisture. However, it is important to note that these solutions are not permanent and may need to be reapplied regularly. If your double glazed windows are still covered by warranty, the best method to fix a problem with misting is to contact a professional installer. It is recommended to go with a FENSA regulated company as they will provide a 10 year warranty and abide by UK Building Regulations.