https://www.repairmywindowsanddoors.co.uk/haywards-heath-misted-double-glazing-repairs-near-me/ Clear Up Misted Up Double Glazing It's normal for double-glazed windows to display condensation on the outside. This is a sign they are functioning correctly. Condensation within the glass panes however is a different matter. Smudged double glazing could be more than an eyesore. It could also indicate that the seals of your window units with insulation have become damaged or even broken. Seals It is normal for condensation to develop on the outside of double glazing. This is an indication that your windows function properly. This is because the air outside is reaching its dewpoint faster than the glass. However, if your windows are leaking on the inside this is more of a concern and something you will need to deal with. The reason is that misting up on the inside of your windows usually indicates that there is an issue with the seals and that water has made its way into the gap between the two glass panes. Window seals wear out over time due to ageing and general wear and wear and tear. They also degrade if they are exposed to harsh cleaning chemicals, which can damage the material. can cause misting if the installer did not use the correct fixing techniques or fitted the frame or insulated panels correctly. A spacer bar is used to fill the gap between two panes of windows with double glazing. This creates a thermal barrier and also acts as an insulation. The spacer bar is coated with a desiccant that is specially designed, which absorbs moisture and keeps the gap dry. The condensation occurs when the spacer bar is damaged or worn and the water that is trapped in that gap finds its way past the seals. Poorly installed and poorly maintained double-glazing isn't only a source of condensation and damp - it can also affect the efficiency of your home. Windows that aren't functioning properly allow cold air to enter and warm air to exit and you'll have to spend more on heating