Mold under the mattress - Fiberglass RV


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Old 10-29-2015, 10:54 AM   #1
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Mold under the mattress

When cleaning out the trailer after 7 weeks on the road, we discovered mold starting to form on the painted plywood under the mattress. Has anyone else had trouble with this. We use a 6 inch foam with a 1 inch memory topper. We were in Alaska, Yukon and we did have a fair bit of rain and some minus temps, and did not put the heat on much.

We are now thinking of making a slat frame for under the mattress so that there is more air circulation.
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Old 10-29-2015, 11:07 AM   #2
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Or tip the cushions up for a couple of hours a day.

I use the original cushions. They have a vinyl back that seems to prevent condensation under the cushions. But I live in a very dry climate. That is probably why I have not had a problem with condensation.
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Old 10-29-2015, 12:38 PM   #3
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This works excellent to provide circulation under the mattress

HyperVent Marine - Putting An End To Condensation
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Old 10-29-2015, 01:07 PM   #4
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Quote:
Originally Posted by tractors1 View Post
This works excellent to provide circulation under the mattress

HyperVent Marine - Putting An End To Condensation


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Old 10-29-2015, 02:22 PM   #5
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Another thumbs up! This is our 3rd year using this product. Works great!

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Old 10-30-2015, 10:04 AM   #6
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Thanks for posting about this. That was a bit of a surprise for us too after our 3 week trip in humid, just above freezing temperatures. Now we resort to flipping and standing up cushions, not the most convenient solution. Those using Hypervent - how much space does it take? Since we use the dinette daily, and convert to a bed in the PM, we would have to find room to roll this up and store out of the way during the days correct?
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Old 10-30-2015, 10:27 AM   #7
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Thanks for the info. I am now searching for a local supplier. It will be lighter than what we were thinking of doing. As we keep the bed down all the time, we only have the mattress, so it is harder to lift and air.
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Old 10-30-2015, 11:15 AM   #8
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I think I give that product a try. In the meantime to save your mattress spray it with Mold Control available at home Depot. Let the sun dry it. Try a little spot first.

We totally replaced the wood base of out seating/sleeping area and painted it with three coats of mould fighting paint.

It has worked so far and we have used the trailer in freezing weather as well as hot weather in the same season.

We also bring in the mattress at seasons end and to fight the mice we stuff every orafice with steel wool, pack everything in plastic bins with tight lids. Set traps and toss cloves everywhere.They don't like plastic.

I hate mice and I hate mold. I love my Boler.

The best of luck on the mold problem.

Linda
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Old 10-30-2015, 12:01 PM   #9
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I'm intrigued by the HyperVent product. Do you put it under the cushions, or on top of them but below any additional layers? For example, we have the original cushions then a 3" memory foam layer then a mattress pad. Where do you layer the HyperVent for best performance?
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Old 10-30-2015, 01:52 PM   #10
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Place the HyperVent at the very bottom layer, right up against the wood or fiberglass, so air can circulate under the sleep surface. If you have to change from bed to table during the day, you can cut the HyperVent into sections to stow under the seat & back cushions as you use them. Best of luck all.
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Old 10-30-2015, 09:47 PM   #11
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Smile Condensation

What you are experiencing is condensation. Just like the water that forms (condenses) on a glass of ice water, air will hold water until it reaches its dew point. Dew point is the temperature at which the amount of water vapor in the air turns back into water because the heat of the air can no longer contain it.

What you have with cushions, just like with house insulation, is the temperature at the surface of the cushion is ambient and the temperature at the bottom of the cushion is whatever it is touching. We had the problem with the fiberglass areas the cushions touched.

The temperature decreases from the cushion surface to the surface the cushion rests on. If this temperature gradient passes the dew point for the humidity content of the air, water will form at that point.

One way to prevent this is to place a barrier which will not allow water vapor past it. A sheet of plastic works well. Just place a sheet of plastic OVER the cushion to prevent the moisture from entering the cushion. You are being surprised by the amount of moisture the human body deposits via evaporation into its environment.

Another thing that helps is keeping some sort of ventilation in the trailer. We always have our roof vent at least cracked and one of the windows also.

https://en.wikipedia.org/wiki/Vapor_barrier
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