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Why is My Double Glazed Window Misted? Double glazing is an excellent way to improve the efficiency of your home and ensure optimal energy efficiency. If you notice that your windows are misting, this is a sign that the seal on your window has been damaged. This will allow moisture to enter the insulation area of your window and could drastically decrease their performance. This problem is easy to fix. What is it? misty windows is possible to experience condensation on your double-glazed windows, particularly when it's extremely cold and windy. This is a normal indication that your double-glazed windows are securing the cold but also let in heat. It is easy to wipe away, or you can let it be cleared by itself. If your double-glazed window is leaking on the inside, this is more of an issue. This is usually a sign that the seal on your double glazing has deteriorated, or 'failed' as it is called in the field. When a sealed double glazed unit breaks down or fails, water can be able to get into the glass panes of your window. This can cause the argon,xenon or krypton gas that is used in these windows to leak out too. After this, the high density gases lose their insulation properties and your windows are no longer a sealed unit. One of the primary reasons for the seal of a window to fail is the natural wear and tear over years. This is due to the constant expansion and contraction of the gases within your double glazed windows when temperatures fluctuate. Cleaning with chemicals that are abrasive on your double glazing could also cause damage to the seal, and cause it to break in time. If the seal on the double-glazed windows you have is broken, warm air can escape through the glass panes, and cool air can enter and cause moisture to build up on the bars that hold the glass unit. This is known as a “blown” window and can result in costly energy bills during winter. This issue can be resolved by replacing the glass units within your double-glazed windows. It's a less expensive alternative than replacing the entire window. It can also guarantee that your home is adequately protected and insulated. It's also a good idea to ensure that the company you choose to replace your double glazed windows is insured because this can safeguard you in the event of unforeseen issues with your installation. What is the reason for this? Condensation inside double glazing isn't just unsightly but can also result in mildew which will deteriorate timber window frames. In extreme cases, black mold can also grow on window frames and cills which isn't good for you or 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 the water vapour in the air transforms into liquid water. It is therefore common to observe it at the night or early morning when the dewpoint is highest and air temperature is higher than the glass surface. Condensation inside double-glazed windows will be more common as the weather gets colder and humidity levels increase. It is usually a natural phenomenon and does not necessarily mean that your double glazed windows are in problems. If the condensation is visible from the outside of your window and disappears when the sun rises, there is no reason to worry about it. Double glazed windows that are damaged or faulty will not insulate as well as they should, which can result in higher prices. If the seals are broken then moisture may be trapped between the two glass panes and will eventually cause an effect of mist. The reasons that cause misted double glazing can be numerous but there are a few major reasons worth checking out for: The first sign of problems with your double-glazed windows is typically when you observe condensation developing on the inside of the window. Water stains or glass damage caused by moisture trapped between the two panes could be the next stage. This could be caused by the installation process or just wear and wear and tear. This could mean that your window is approaching the end of its life and requires replacement in order to increase the insulation of your home. How do I get rid of it? Double glazing can increase the efficiency of your home's energy usage and the look of your windows. If your double glazing is cloudy or misty it could ruin the appearance of your windows. The solution to this problem is simple and cost-effective. Double glazing that is misted is the result of condensation or moisture entering the space between the double-glazed windows which must be airtight. This is usually a sign that the window seal is damaged and needs to be repaired. Condensation on the outside of windows with double-glazed glass is normal, especially during cold weather. This happens because the glass is cooled down by air that has warmed up and reached its dew point. 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 only when the double-glazed windows are smoky that you need to do something about it. This is because the condensation is signalling 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. There are a variety of methods to eliminate the condensation on your double-glazed windows. Try wiping them down with a damp cloth, this usually removes the condensation. You can also spray them with glass cleaner specifically designed to eliminate condensation haze. You can also install a dehumidifier at home, which will help to absorb the moisture 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 hole in one of the windows and then pumping in a special desiccant, which will help to dry out the window and prevent any further issues. This is a risky procedure and should only be carried out by an expert. This procedure will restore the double-glazed windows to their original state and guarantee that you don't suffer from misting or condensation problems in the future. What is the best solution? Condensation is common on the outside of modern double-glazed windows. This is a great indication that your windows are functioning well. It is easily removed. The condensation is caused by the temperature difference between the air in the house and the cold surface of the window glass. However, if you have condensation between the panes of glass in your double-glazed windows, this is not normal and should be dealt with immediately. The window seal is damaged and moisture may enter the space in between the glass panes. This can lead to the windows losing their insulation properties, which could reduce the energy efficiency of your house. The most efficient way to minimize condensation in your double glazed windows is to increase the airflow within your property. Open your windows daily to allow fresh air into your home and decrease humidity. In areas where there is an abundance of moisture, like kitchens and bathrooms, extractor fans are recommended. Dehumidifiers are also a great option to effectively remove excess moisture from the air and keep it from condensing on cold surfaces like window glass. Cleaning the window glass using anti-fogging solutions is a great method to prevent condensation from double-glazed windows. These products can be found in a majority of hardware stores. They are designed to reduce the build-up of moisture. It is important to keep in mind that these products aren't a permanent solution and must be reapplied periodically. If your double glazed windows are still under warranty, the best way to fix any issue with misting is to contact an experienced installer. A FENSA-regulated business will offer a 10-year guarantee and adhere to UK Building Regulations.