https://www.repairmywindowsanddoors.co.uk/kettering-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Window Misted? Double glazing is a great way to increase the efficiency of your property and ensure maximum energy efficiency. If you notice that your windows are getting misty it is a sign that the seal of your window has been damaged. This will allow moisture to enter the insulation area of your window, which can dramatically reduce the performance of your windows. This issue is simple to fix. What is it? You may see condensation on the exterior of your double-glazed windows from time to time especially when it's cold and windy. This is a normal indication that your double glazed windows are securing the cold, but letting in warmth. It can be easily cleaned off, or let it go away on its own. This is especially true if your double-glazed window mists inside. This is a sign of a broken seal or a failure in your double glazing. When a sealed double glazed unit fails, or fails, moisture may get in between the two panes of glass in your window. The argon, xenon, or krypton gases that are employed in these units could also leak out. Once this happens the high-density gases lose their insulating properties and your window is not sealed anymore. One of the primary reasons for the seal of a window to break down is natural wear and tear over years. The constant expansion and contraction of double-glazed windows is caused by changes in temperature. Utilizing chemical cleaners that contain abrasives on your double glazed windows can also damage the seal and lead to it failing in time. If the seal of the double-glazed windows you have is broken warm air can escape through the glass panes and cool air can get in, causing moisture buildup on the spacer bars inside the glass unit. This is referred to as a "blown" window and could cause costly energy bills during winter. Replacing the glass units in your double-glazed windows could solve this issue. It's a less expens