https://www.repairmywindowsanddoors.co.uk/potters-bar-misted-double-glazing-repairs-near-me/ How to Prevent Misted Windows The moisture that builds up within your double glazing is a result of a variety of causes. The air in your home is typically more humid than the outside air, which can cause moisture to build up between the glass panes. This is a problem that can affect the efficiency of double glazing. Ignoring the issue will only lead to increased energy bills and damage to your windows. Condensation on the outside This is normal. Exterior window condensation occurs when warm, humid air is brought into contact with cold glass. The air's moisture cannot hold itself as an inert gas and when it comes in contact with a cold object such as window glass, it transforms into water droplets (known as condensation). Window condensation on the outside occurs most often in the morning, when temperatures outside are low and the sun hasn't yet risen to heat the windows, and evaporated the moisture. The good news is the presence of condensation on your windows' exterior is a sign that your double glazing system is working correctly and is keeping heat from leaving your home. The bad news is that the excess condensation from windows on the outside can drip down and cause blistering, cracking or peeling paint to your window frames. This can lead to costly damage and require replacement. You can do this by cleaning off the condensation from your windows with a squeegee, or a clean cloth. You may also want to think about a hydrophobic coating for your windows, which is a transparent layer of substance that causes water to move off rather than sticking. It can be purchased from most hardware stores and applied in accordance with the manufacturer's guidelines. A dehumidifier can be utilized to reduce the amount of humidity in your home. You can buy these appliances from most hardware stores, or online retailers. They are highly effective in reducing levels of moisture in your home