https://www.repairmywindowsanddoors.co.uk/rayleigh-misted-double-glazing-repairs-near-me/ What Causes Misty Windows and How to Prevent It Windows that are dirty look ugly, but more importantly they decrease the efficiency of your home. It's crucial to find the cause of the problem and then fix it. Glass that is smudgey can be an indication of old windows. There are many reasons why your window glass may be misty. Damaged Seals The most common reason for windows that are smudges is a broken window seal. Modern windows are made of triple-pane or double-pane design with an air space between them and are sealed by vacuum at the edges. These windows are referred to as IGUs, or insulated glass units (IGUs) and can contain an inert gas like argon or Krypton to reduce the transfer of heat or cold from the outside to your home. Window seals, like all manufactured products have an extended lifespan and may eventually fail due to wear and tear. They also can fail because of external forces like high winds or poor installation. However, they also suffer due to environmental factors, such as solar heating and cooling, humidity, and even the use of harsh cleaning products. When window seals fail they let humid air pass through the glass panes of your IGU and cause condensation that blocks your view. This can not only reduce the insulating value of windows, but it can also result in higher energy bills and even water damage to the home. A sure sign of a failing seal is windows that cannot longer be cleaned to remove the moisture clouding the view. This is usually the case when the moisture in the window has accumulated so much that it has exceeded its capacity to deiccate. It is time to contact a window expert in the event of this. Follow the manufacturer's guidelines for care and maintenance, which are usually located on the inside of the window frames. Avoid high-pressure window washing, as it can damage both the seal and the glass. It is also an excellent idea for windows to be