https://www.repairmywindowsanddoors.co.uk/oxford-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Unit Misting Up? It's not a big issue if condensation forms on the exterior of double glazing. This shows that your windows function properly and keep heat in your home. When it appears on the inside of windows, it is an issue. If notice moisture trapped between your windows, it indicates that the seals aren't working. This can result in more expensive heating bills and less insulation. This can be due to several reasons. 1. Faulty Seals Misting that occurs on the outside of your windows is often caused by condensation that has made its way into the space between the glass panes. The condensation usually appears as a cloudy layer and reduces the transparency of your window. The misting that occurs within your double glazing is more serious and indicates that the seals on the insulation unit have failed. This is a sign that the seal is broken and moisture is leaking between the two glass panes. This causes the fogging, and reduces the energy efficiency of your window. Double glazing that fails can also affect the appearance of your home and the safety of your family. There are a variety of reasons that could cause your double-glazed units to fail. These include natural wear and tear, a poor installation or design problem with the window frame. It is important that you only use a reputable installation company who will warrant their work and not void any warranties from the manufacturer. One of the primary reasons that your double glazed units can fail is because they've become damaged by water. It could be due to inadequate installation or insufficient drainage or spacer blocks. The moisture then gets into the seals, causing them to break over time. This causes condensation between the glass panes. Another reason for a failure of a double glazed unit is that the desiccant inside the unit is saturated. The desiccant absorbs moisture and stops it from enterin