https://www.repairmywindowsanddoors.co.uk/middlesbrough-misted-double-glazing-repairs-near-me/ Repairing Misted Double Glazing Double glazing that is hazy is not just a blemish on the eye, it could be a sign of an issue between the glass panes. A damaged seal lets water vapour to get in, which reduces the window's insulation properties and causing higher energy bills. While replacing the sealant is one option replacement of the glass is typically preferred for a lasting resolution. This allows homeowners to upgrade their windows by using energy efficient glass that is A-rated. Damage to seals Double glazing that's misty could be more than just an ugly issue. It could also indicate that your windows are not properly sealed or insulated. This could lead to drafts around your windows as well as higher costs for energy as you need to heat your home more often to keep it warm. This is why it's important to act swiftly whenever you notice that your double glazing is starting to fog up. The good news is that there are a variety of options to address the issue, and most of them won't cost the price of a house. The reason for misty double-glazing is water vapour that has condensed between the glass panes. It can happen when the air in the room becomes too humid, or if a cold object (such as windows made of glass) comes into direct contact with an icy surface. In both cases the humidity is high enough to soak the anti-moisture granules (similar to the silica gel that is found in the new shoe boxes) within the bars that make up the spacers of your double-glazed unit leaving it saturated and unable to dry out the moisture between the two glass panes. However, it's not as simple as just replacing these granules as they are encased in the sealant that has been degraded due to wear and tear or by the damage caused by the installation process. It's worth remembering that no sealant is 100 100% effective, and it's expected that a small amount water will get in over time, much as air