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Why is My Double Glazed Window Misted? Double glazing is a great method to increase the efficiency of your home, and to ensure maximum energy efficiency. If replacing misted double glazed units notice that your windows are getting misty it is an indication that the window seal has broken. This allows moisture to enter the insulation area of your window, which will drastically reduce their performance. This is a simple issue to solve. What is it? You might get condensation on the outside of your double-glazed windows at times especially when it's cold and windy. This is a typical indication that your double glazed windows are securing the cold, but letting in warmth. You can clean it off or let it go by itself. This is more likely to happen If your double-glazed windows leaks inside. This is an indication of a damaged seal or malfunction in your double glazing. Moisture may get in between the two glass panes in double-glazed units that have 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 not a sealed unit anymore. One of the primary reasons for a window's seal to fail is the natural wear and tear that occurs over the years. This is caused by the constant expansion and contraction of gasses inside your double glazed windows as temperatures change. Double glazing seals can be damaged using abrasive chemicals. If the seal on your double glazed windows is damaged, it means that warm air can escape from between the glass panes, and cool air can enter which causes condensation to form on the spacer bar in the glass unit. This is known as a “blown” window and could lead to expensive energy bills in winter. Replacing the glass units in your double glazed windows can solve this problem. This is a cheaper alternative to replacing the entire window. It can also guarantee that your home will be adequately sealed and insulated. You should also ensure whether the company who is replacing your double-glazed windows is insured. This will safeguard you in the event of any unexpected issues. What is the reason for this? Condensation in double glazing can cause mildew to develop on the window frames, which is not only unsightly but also a risk. In extreme cases, black mould can even develop on window frames and cills which can be harmful to you or your family. Understanding the reason for condensation is essential to understand how to best deal with it. Condensation is caused when the surface temperature of the glass falls below the dew point – the point at which the water vapour in the air turns into liquid water. This is why it tends to occur in the evening or early in the morning, when the dew point is highest and the air outside is warmer than the glass's surface temperature. Condensation within double-glazed windows is likely to be more common as the weather gets colder and humidity levels rise. In the majority cases it is a natural occurrence and doesn't indicate a problem with your double-glazing. If the condensation only appears on the outside of the window and disappears when the sun sets, there is no reason to worry. Double-glazed damaged or broken windows won't insulate your home as well as they should and this can result in higher energy bills. If the seals have been damaged then moisture could be trapped between the two glass panes and will eventually cause an effect of mist. The causes of the problems that lead to misted double glazing can be numerous but there are some main causes that are worth looking out for: The first indication of a problem with your double glazed windows is typically when you notice condensation forming 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 step. This could be caused by damage from installation or just wear and wear and tear. In some cases, this could be a sign that the window has reached the end of its lifespan and requires replacement to increase the insulation efficiency of your property. How do I get rid of this? Double glazing can increase the energy efficiency of your home and enhance the look of your windows. If your double glazing is cloudy or misted, it can ruin the appearance of your windows. The solution to this problem is easy and affordable. Double glazing that has mist is a result of condensation or moisture getting into the space between your double-glazed windows that should be airtight. This is typically an indication of a damaged seal on your window that needs fixing. It is common for double-glazed windows to develop condensation on the outside, especially in cold weather. The glass is cooled by air that has reached its dewpoint. When this water vapour hits the cold surface of your windows it becomes visible and will eventually disappear once the glass warms up again. Generally, it is only when double glazed windows are misting inside that it is an issue and something has to be done to fix it. This is because the condensation is indicating that there has been damage to the seal between the two glass panes of your windows and could be an indication of poor installation or chemical used in cleaning products. To get rid of condensation on your double glazed windows, there are a variety of ways that you can try. You can wipe them with a damp cloth to remove the condensation. You can spray them with a glass cleaning solution that is designed to eliminate the haze created by condensation. You can also install the dehumidifier inside your home, which will help to take the moisture away and prevent it from building up on windows. Professional measures can be taken to fix double glazed mist. This involves drilling a hole into one of the windows and then pumping a desiccant through the window. This will aid in drying out the glass and avoid further problems. However, this is dangerous and should be carried out by a qualified professional. This solution will restore the double-glazed windows to their original state and guarantee that you won't experience any condensation or misting issues in the future. What is the best solution? It is normal for double-glazed windows to show condensation on the outside of the glass panes. This is a sign that windows are operating efficiently and it can easily be cleaned away. The condensation is caused by the temperature difference between the air in the house and the cold surface of the window glass. If you notice condensation between the double-glazed glass panes, it is not normal. You must immediately take action. The window seal is broken and water can get into the space between the glass panes. This can result in windows losing their insulation properties, which could reduce the energy efficiency of your home. The most effective way to prevent condensation from windows with double glazing is to improve the ventilation within your property. You should open your windows at least once a day to allow fresh air into your home and decrease humidity. It is recommended to also use extractor fans in areas that produce lots of moisture like bathrooms and kitchens. Dehumidifiers are also helpful in actively eliminating excess moisture from the atmosphere and keeping it from condensing onto cold surfaces, such as window glass. Another effective method to reduce condensation in your double glazed windows is to clean the window glass with an anti-fogging item. These products are available in a majority of hardware stores and are designed to stop the build-up of moisture. However it is important to keep in mind that these solutions are not permanent and will need to be reapplied on a regular basis. If your double-glazed windows are still under warranty, the best way to solve the issue of misting is to call an experienced installer. It is best to use an FENSA licensed company since they offer a 10-year guarantee and will abide by UK Building Regulations.