Preventing Condensation And Mold In Your RV.

The formation of condensation can occur when camping in cold temperatures or in areas where there is a high level of humidity in the air. These water droplets will form on a variety of surfaces inside the RV, including the windows, walls, and counter-tops. It is important to keep RV condensation under control; otherwise your RV may be at risk of developing a mold problem. In addition to mold growth and its health issues, a buildup of condensation can also cause wood rot and corrosion. All of these can affect the overall look, performance, and value of your RV.

There are many tips we have learned from seasoned RVers when it comes to the formation of condensation. Here are some of the ones we have discovered work best:

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Eliminate The RV Condensation Source

There are many different moisture sources inside your RV that you can control, which will help reduce the formation of RV condensation. For example, heating up food releases water vapors into the air and increases humidity levels. When cooking, make sure to cover all pots and pans to reduce water vapors escaping. Also, hang wet clothes outside to dry vs. inside. This way the water vapors from the fabric do not get caught inside your RV.

Increasing Inside Temperature

The formation of RV condensation increases at a lower temperature. If possible, run the thermostat a little warmer in your RV. This will help reduce the levels of condensation inside the unit. A programmable RV digital thermostat can assist with climate control.

Installing Window Insulation

Do-it-yourself window insulator kits are available at home improvement and RV supply stores. Once installed there will be a barrier between the window and the humid air, reducing the formation of condensation.

Using A Dehumidifier

Regularly using a dehumidifier inside your RV unit will help rapidly reduce the levels of humidity without increasing the temperature. There are small, compact dehumidifiers that are designed specifically for camping.

Ventilating The Unit

Properly ventilate your RV. This ensures water vapors in the bathroom after showering and in the kitchen when cooking get released outside. Some RV goers suggest cracking a window for a few minutes to help even out the moisture content in the air inside the unit.

Wiping Surfaces

When you see RV condensation starting to form on windows and counter-tops, take the time to wipe it away immediately.

Preventing Mold Growth

To prevent mold from growing inside your RV, it’s best to keep the humidity levels between 30 and 50 percent. Humidity meters, also known as a hygrometer, are available to purchase and install inside your RV to help keep track of moisture levels in the air. Some dehumidifiers are equipped with meters to help monitor humidity levels.

By using any of the above listed tips, or all of them combined together, you will be able to keep RV condensation formation down to a minimum and reduce your chances of having mold grow and causing damage to your unit. No condensation or mold will increase the amount of fun you have on the road.



Heather Carlson. “How To Reduce RV Condensation And Prevent Mold” web blog post.  RV repair club. 7 Feb. 2017

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