https://www.repairmywindowsanddoors.co.uk/camberley-misted-double-glazing-repairs-near-me/ What Causes Misty Windows and How to Prevent It Misty windows can be unsightly but they also affect the energy efficiency of the home. This is why it's crucial to pinpoint and address the root of the problem. Foggy windows are a sign of aging windows. There are many reasons why your windows' glass might be misty. Seals that are damaged A broken window seal is the most common cause of misty or foggy windows. Modern windows have a triple-pane or double-pane design with an air space between them and are sealed by vacuum around the edges. These windows are called IGUs, or insulated glass units (IGUs) and could contain an inert gas, like argon or Krypton, to further reduce the transfer of cold or heat from the outside to your home. As with all manufactured products window seals also have an expected lifespan and may eventually fail from normal wear and tear or from damage caused by external forces, such as high winds or poor installation. They are also damaged by environmental elements like solar heating and cooling or humidity, or even harsh cleaning products. When window seals fail they allow moisture to pass through the glass panes of your IGU which causes condensation that obscures your view. This is not just a decrease in the insulating value of your windows, but can also result in more expensive energy bills and possibly water damage in the house. A sure sign of a damaged seal is a window that is unable to longer be wiped down to clear the moisture from the view. This is typically because the moisture has built up to a point where it has surpassed the capacity of the built-in silica desiccant in the frame. If this happens it is the time to call a window specialist. The best way to avoid seal failure is to follow the manufacturer's maintenance instructions, which are typically printed on the inside of your window frames. Avoid high-pressure window washing as it can damage both