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Old 12-06-2010, 12:52 PM   #1
Join Date: Oct 2010
Posts: 37
Condensation in cold weather

I have a rear bed with a slide out in my Class C. I have some condensation in the bedroom, next to the matress at the headboard. I have to move the matress to wipe it down to dry.

Since I full time in my unit, new to me, I am concerned I could end up with mold or some other problem. Right now I am drying the area each day.

I was wondering if there is a fix to eliminate the daily maintenance.

Any suggestions?

2009 Four Winds Class C 32 feet
Pulling a 2010 Honda Fit
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Old 12-06-2010, 01:56 PM   #2
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You are right to be concerned with the moisture in your coach. Once mold and mildew spores get in your coach they will multiply in the out-of-the-way places.

The best solution to prevent this from happening is to air out the coach on a daily bases in the day time when the temperature is highest. This may be difficult in regions that have high humidity during the winter months. The other solution is to open a window an inch or two and leave it open all the time(weather permitting).

If you already have mold and mildew, I have found the same thing you use in the shower to prevent it works great elsewhere. Beware that some of these producst have bleach.

On Edit:
I forgot to add that if you do a lot of cooking run the vent fan and crack open a window. If there is too much moisture in the coach the first indication, as you probably know, is the formation of condensation on the bottom of the windows.

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Old 12-06-2010, 03:38 PM   #3
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We fulltime and we do not have a problem with moisture. We use Damp-Rid. Keeps us free of moisture. You can find it a t Wally World or any hardware store.
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Old 12-08-2010, 07:44 AM   #4
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progess report

I set out 3 Damp Rid buckets in cabinets. I also retracted the bedroom slide thinking that might lessen condensation on the bottom of the headboard.

The two things did decrease condensaion overall, and in the problems areas. Some of my windows still had some significant moisture, so I wiped then down this morning.

After the holiday I move South and hope that will be the real solution.

BTW Damp Rid was 2.97 for the 10 oz refillable, and re-sealable, bucket. Home depot had a box of 4 buckets for about 9.99. In the paint department.
2009 Four Winds Class C 32 feet
Pulling a 2010 Honda Fit
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Old 12-08-2010, 02:11 PM   #5
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Another thing to look for, depending whether you do more boondocking or shoreline hook-ups is 12volt or 120volt or combination of both electric dehumidifiers. We use both the electric dehumidifiers, and the pellet dehumidifiers in our class c. Also with the help of some others in the forums, I started to use a squeegee in the shower to wipe down the walls and a small rag to wipe down the areas that the squeegee can't get to. Make sure to ring the rag out down the drain or out side, after wiping things down. So that you not holding the moisture, you are removing it. Another thing that you can do is pick up the window insulation kits from walmart or other home improvement stores. The ones that tape to the window and you use a hair dryer to shrink them down. This in essence creates a storm window and will help with air leaks as well as condensation. But make sure to leave a couple of windows uncovered so you can open them. You want to still have ventilation. I would recommend one window in the back, one window in the front and one window in the cab-over being left uncovered at bare minimum. We also sleep with all 3 roof vents partially open for night time ventilation. They are left open day and night. We have the vent covers/domes installed on them, so we don't have to worry about the rain getting in. And like the others have said. Run the stove vent and open a window when cooking, especially when boiling water. In our rig, we have 3 people, my wife, youngest daughter and I. It had been a problem for us since we got our rig last year, but with the help from everyone on the forum, we have pretty well eliminated the the moisture build up in our rig. I hope this helps and good luck.
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Old 12-13-2010, 07:15 PM   #6
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Hi I put 3 small pans of rock salt It works even in Seattle
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Old 12-13-2010, 07:23 PM   #7
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I spend a lot of time in rainy areas, it's too cold to open windows, and I cook. So I get moisture on my windows. I use a 10 inch electric fan and point it toward the problem area. Moving air will do the trick.
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Old 12-14-2010, 05:29 AM   #8
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Great suggestions. I appreciate all the ideas.

I am trying most of them, and right after the holiday, I will try the relocation method by moving South.

The wheels go round and round!

Thanks again to all.

2009 Four Winds Class C 32 feet
Pulling a 2010 Honda Fit
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