https://www.repairmywindowsanddoors.co.uk/portsmouth-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Window Misted? Double glazing is an excellent way to improve the efficiency of your home, and to ensure maximum energy efficiency. However, if you notice that your windows are misting, it is an indication of a broken window seal. This can allow moisture to get into the insulation section of your window and will drastically reduce the performance of your windows. Luckily, this issue is quite easy to resolve. What is it? There may be condensation on the exterior of your double glazed windows from time to time, especially if it's very cold and windy. It's normal and a indication that your windows are functioning well, keeping cold out and heat in. You can clean it off or let it go away on its own. If your double glazed window has a tendency to mist on the inside though this is a more serious issue. This is an indication of a damaged seal or malfunction in your double glazing. When a sealed double glazed unit fails, or fails, moisture can be able to get into the glass panes of your window. The argon,xenon orkrypton gases that are used in these units may also leak out. Once this occurs the high-density gases lose their insulation properties and your window will no longer function as an enclosed unit. Natural wear and tear is among the primary reasons for seals to fail on windows. This is caused by the constant expansion and contraction of gasses inside your double glazed windows as temperatures rise and fall. Double glazing seals can be damaged by applying abrasive chemicals to them. If the seal on your double-glazed windows has failed this means warm air can escape from between the glass panes, and cool air can get in, causing condensation to form on the spacer bar in the glass unit. This is often referred to as a 'blown window' and can result in expensive energy bills in winter. Replacing the glass units in the double-glazed windows you have can solve thi