How to Stop Walls From Sweating in a Camper

by Kimberly Turtenwald
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Most campers are constructed for camping in warmer conditions, which means there is little insulation separating the inside temperature from the outside. However, if you camp in colder weather, you may experience issues with sweating walls in your camper. If you don't remedy the situation, mold can begin to develop on the surfaces of the walls and possibly even inside the walls. It costs far less to fix the sweating walls than it does to repair the frame inside your camper.

Step 1

Run a portable dehumidifier in your camper to help reduce the amount of moisture in the air. Some of the appliances in your camper contribute to moisture levels, which can cause the walls to sweat even more.

Step 2

Use the vents over the stove when cooking and in the bathroom when taking a shower. The vents allow moisture to escape, reducing the moisture available to condense onto the walls within the camper.

Step 3

Cover the walls with carpeting or thick, vinyl wallpaper and staple it in place. The space between the inner and outer walls of most campers is thin and often contains little insulation. Covering the walls with either carpeting or more wallpaper makes the walls thicker and more insulated.

Step 4

Use a flat-head screwdriver to carefully pull the panels away from the camper walls. Slide 3/4-inch urethane foam panels between the walls to further insulate the walls. Caulk the wall panels back in place.

Step 5

Remove interior light fixtures, electrical sockets and other fixtures. Stuff foam insulation into the spaces behind these items and replace them.

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