https://www.repairmywindowsanddoors.co.uk/sale-misted-double-glazing-repairs-near-me/ Repairing Misted Double Glazing If your double-glazed window is cloudy, it's more than just an eyesore - it could mean there's an issue with the seals between the glass panes. Damaged seals allow water vapour to enter, reducing the window's insulation properties and causing higher energy bills. While replacing the glass unit may be a better option to ensure a long-lasting solution it is generally recommended to renew the sealant. This gives homeowners the opportunity to upgrade their windows using A-rated energy efficient glass. Damage to the seals Misty double glazing isn't just an unsightly issue. It can also indicate that your windows aren't properly sealed or insulated. This can cause draughts around your windows and higher energy bills as you have to heat your home more often to keep it warm. It's essential to act fast if your double glazing starts to fog. There are a variety of solutions to this issue and they don't have to cost a fortune. The condensation of water vapour between the glass panes is what causes misty double glazing. This may occur when the air in the room becomes too humid, or when a cold (such as windows made of glass) is in direct contact with the warm surface. In both cases, the humidity is high enough to soak the anti-moisture granules (similar to the silica gel you find in new shoe boxes) within the bars that make up the spacers of the double-glazed unit, making it saturated and unable to dry out the moisture between the two glass panes. It's not easy to replace these granules as they are encased within the sealant, which has been damaged by wear and tear or damage that occurred during the installation. Keep in that no sealant can be 100% effective, therefore it is inevitable that some water will leak through over time. This is the same for air or Argon gas. The best method to avoid misting is to ensure that the space between the two panes is fully clear.