https://www.repairmywindowsanddoors.co.uk/tower-hamlets-misted-double-glazing-repairs-near-me/ Clear Up Misted Up Double Glazing It is normal for double-glazed windows to show signs of condensation on the outside. This is a sign they are functioning properly. Condensation inside the glass panes, however it's a different story. Smudged double glazing is more than an eye-sore. It could also mean that the seals on your window units that are insulated have become damaged or are broken. Seals It is normal for condensation to form on the outside of double-glazed windows. This is an indication that your windows work well. This is due to the air outside reaching its dewpoint faster than your glass. However, if your windows are getting misty inside, this is a bigger issue and something you will need to take care of. The reason for this is that misting on the inside of your windows usually suggests problems with the seals and water has gotten into the space between the two panes of glass. Window seals wear out as time passes due to ageing and general wear and wear and tear. The material can also be damaged if the seals are exposed to harsh chemicals. Poor window installation may also cause misting if the installer did not use the correct fixing methods or installed the frame or insulated panels correctly. A spacer bar is used to fill the gap between two panes in windows with double glazing. creates a thermal barrier and also provides insulation. The spacer bar is coated with an evaporation layer that absorbs moisture, keeping the gap dry. The condensation occurs when the spacer bar has been damaged or worn out, and the water inside the gap moves through the seals. Double-glazing that's poorly installed and maintained can lead to damp and condensation however, it can also reduce the energy efficiency of your house. The windows that are not properly installed allow cold air to enter and warm air to exit, which means you will need to spend more money heating your home. If your w