What is condensation and how does it occur?


All of the aforementioned situations have the following features in common:

  • In your surroundings or the air you breathe, it is warm and humid.
  • The colder surface causes the warm, humid air to become much more humid when it comes into touch with it.

Although it may evaporate more slowly if water is constantly being supplied to it in some manner, a person may evaporate water or turn it into vapour at whatever temperature they want. Warm air holds water vapour easily because it is less dense than cold air.

Water ceases to exist as a vapour when the air temperature is low enough. Once the air is warm and humid, it condenses again into a liquid. As a consequence, fog may be noticed in the natural world. When the surrounding air comes into touch with a considerably colder surface for a lengthy period of time, it is also feasible for condensation to occur. The condensation of water vapour results in the formation of a liquid on the surface. The latter approach results in condensation in your RV throughout the winter.

How does condensation get stopped while RVing in the winter?

Even though the relative humidity outdoors is not too high, winter RVers may encounter high relative humidity in their vehicles.

  • Your RV’s interior relative humidity is high for two reasons:
  • By keeping your RV as tightly closed as you can and preventing hot or cold air from escaping, you may save money and energy.
  • Air humidity is increased by breathing, propane stoves, bathing, and bringing wet or snowy garments inside to dry.

Because we heat our rigs to maintain a comfortable temperature, the warm air inside may contain more water vapour than the outside air. When this warm, humid air comes in touch with the poorly insulated, chilly walls or windows of an RV, they are continuously battling moisture and perhaps mouldy situations.


More to explorer

Which RVs should be winter-ready?

RVs can withstand freezing temperatures with the following features.  If you plan to camp in cold weather, look for these RV features. 

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