How do I stop my caravan windows from steaming up?

In this article, we will answer the following question: How do I stop my caravan windows from steaming up? We will discuss the reasons behind high condensation inside a caravan, factors that cause your caravan windows to steam up, how to avoid them and how to create the ideal temperature inside a caravan. 

How do I stop my caravan windows from steaming up?

If you want to stop your caravan windows from steaming up you have to follow these series of recommendations and tips:

  • Air your caravan as frequently as possible.
  • Do not close the curtains or blinds. If you do, the air will not be able to circulate over the glass and the steam will concentrate (even more) on them.
  • Maintain an atmosphere with a balanced temperature, opening the windows when it is hot and turning on the heat when it is cold.
  • Use the extractor whenever you cook.
  • Place fans so that the air circulates inside the home. If it can be near the window, the better.
  • Put dehumidifiers in affected rooms to absorb ambient humidity.
  • Check and change the windows (sooner or later you will have to do it).

These tricks will help you remove condensation from the windows, but remember that this will not solve it completely, since if this problem spreads through the house it can cause leaks through the foundation of the building. And there we will already be talking about the dreaded humidity.

Why are the windows steaming up?

If your caravan windows steam up, the problem is the inside humidity. When the water vapour that this humidity supposes comes into contact with a surface with a much lower temperature, for example, the windows – they steam up. The crystals are the coldest surfaces of a caravan and if it is winter even more.

And what can generate that humidity? Simply the daily activities such as cooking in a pot, a shower … The geographical location of the caravan, the number of people who live in it or even the plants that also have an influence.

Tips to avoid caravan windows steam up

Here are just a few tips to try in order to avoid caravan windows from steaming up:

  1. Ventilate the caravan. Indeed, this is key. The main objective is to reduce humidity, so the first thing we recommend is, open the windows, let the outside air enter the house and take part of that accumulated vapour. At least once a day, but the more it is ventilated, the better.
  1. Leave the blinds up and the curtains open. After ventilating, once we have closed the windows, it is convenient to leave them that way. Although it may seem not, in this way the air is also able to circulate.
  1. Turn on the extractor hood when you start cooking. That you will not forget to do it. The extractor hood will take away all that steam that is generated when frying or cooking food.
  1.  Maintain an average temperature inside the caravan. Neither too cold nor too hot.
  1.  Install proper windows. We recommend thermally insulating double-glazed windows. These are formed by two or more glasses separated from each other, they have anti-humidity silica material and are sealed with polyurethane silicone. With all this, it is possible to avoid condensation.

 If you have questions about which windows are the most suitable for your caravan, contact us.

Reducing the humidity in your caravan will not only ensure that your windows do not fog up so much, but you will also achieve a healthier environment for your home.

Other questions you may be interested in

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Factors that encourage condensation inside a caravan and how to avoid them

As a general rule, condensation occurs in areas with the coldest and warmest temperatures, that is, essentially on the floor and on the ceiling. The main factors that favour condensation are:

  • The rain. It is responsible for saturating the environment and the ground with moisture so that condensation is easier to appear.
  • Heating liquids inside the cabin also saturate the environment with humidity.
  • The presence of dirty or wet clothing such as towels, shoes, socks, bedding, etc.
  • Our breath and body heat. Although it may seem incredible, it is the main factor in most cases. Let’s take a closer look at this:

An average adult at rest typically has 15 to 18 exhalations per minute. We can exhale between 800 millilitres and 2 litres of water a day. Let’s say then to round off that in a period of about 8 hours of sleep, each of us can pour around 500 ml of water into the environment.

Half a litre of water per person! If we also have the company of our family, some wet clothes … we already have a considerable amount of water vapour on the way to becoming liquid on the ceiling, walls and floor of our caravan.

For very extreme cases, you should know that condensation favours the appearance of dampness and mould, which, as you know, affects our health.

To avoid this, you have the option of a dehumidifier, a device that is responsible for discharging humidity from the environment. You can also buy one or more moisture absorbers without a plug, a device especially indicated to absorb moisture from the air without drying out the environment.


In summary, condensation is a natural phenomenon that will inevitably occur under certain circumstances (ambient humidity + differences in indoor/outdoor temperatures).

Its effects can be minimized but it is very difficult for it to disappear, especially in naturally humid environments such as near the sea, rivers or tropical areas; also during cold, rain or snowfall. Information and knowledge of this phenomenon are what will most help us to minimize its consequences.

If you want to share your experience with condensation inside a caravan or if you have any questions about the content, please let us know!

FAQ on How do I stop my caravan windows from steaming up?

What to do so that the windows do not fog up?

Here’s what to do so that the windows do not fog up: 

  • Ventilate inside;
  • Leave the blinds up and the curtains open;
  • Turn on the extractor hood when you go to cook.
  • Install an extractor.
  • Maintain an average temperature inside.

How to avoid humidity in the windows?

Properly airing the place, with currents that purify the indoor air with the outdoor air and having an adequate ventilation system inside the house are the two fundamental measures to avoid humidity in the windows.

Why do my window panes fog up when it’s cold outside?

Your window panes fog up when it’s cold outside due to the difference in temperatures.  When humid air comes into contact with cold glass, it cools and condenses into tiny droplets, fogging it up.

Why do windows get wet inside?

Windows get wet inside due to an excess of humidity inside the place, with the heat from the inside, water vapour is generated that in contact with a cold surface (the inside of the windows) condenses and causes drops that descend through the window to the wall.


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