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Old 09-30-2019, 04:45 PM   #1
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2018 30' Flying Cloud
South Hero , Vermont
Join Date: Nov 2013
Posts: 247
Cold twin bed base

We own a summer business in Vermont, so have to travel in the “off season”. We have camped in N.C. as low as 8 degrees. No freeze-up, but wet plywood under the mattress.
There is no insulation under the beds, especially over the storage lockers. When we got the AS, we could look down the wall from the bed right into the locker. Look at that back wall. Almost 1-1/2” gap. New weather strip insulation closed the gap, but that’s not enough. Plus, there is a tiny access panel into the rear locker. Why? I don’t know!
So, I decided to fix it. First we got some hypervent stuff to help with the condensation that wet the plywood. That helped with the moisture last year somewhat, but not the cold.
So today, I added some 1” EPS foam insulation and topped it with new 1/2” plywood. We added 1-1/2” width to the mattress base plywood since the mattress hung over and it was hard to tuck sheets in.
1” “L” trim will hide the EPS on the aisle side.
It should help during this coming trip after Columbus Day. Click image for larger version

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Old 09-30-2019, 05:40 PM   #2
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Oswego , Illinois
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Good solution. As an fyi, I took another route. Dehumidifier to reduce inside moisture. No humidity, no condensation. If it is really cold, I ran 120v cord to the under bed compartment and have a 200w personal heater which I can plug in with a thermostat. Temp above dew point, no condensation.
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Old 09-30-2019, 07:52 PM   #3
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2007 27' Safari FB SE
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Google "Boat mattress ventilator". A very common on boats and lots of solutions to the problem there.
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Old 10-01-2019, 12:15 PM   #4
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2018 30' Flying Cloud
South Hero , Vermont
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Quote:
Originally Posted by bweybright View Post
Google "Boat mattress ventilator". A very common on boats and lots of solutions to the problem there.


That’s the hypervent stuff under the mattress. We did that and it helped with moisture, but not the cold. Look at the before picture, there’s even a hole down the the rear locker. Hence the insulation.
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Old 10-02-2019, 10:05 AM   #5
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2017 30' Classic
2022 Interstate 24X
Carlisle , Pennsylvania
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Hi

Another "fix" might be a bit of heat in the storage compartment. Indeed that's what AS did on the newer Classic's.

Bob
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Old 02-10-2022, 09:16 AM   #6
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2022 25' Flying Cloud
McPherson , Kansas
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Posts: 17
Quote:
Originally Posted by sb55 View Post
We own a summer business in Vermont, so have to travel in the “off season”. We have camped in N.C. as low as 8 degrees. No freeze-up, but wet plywood under the mattress.
There is no insulation under the beds, especially over the storage lockers. When we got the AS, we could look down the wall from the bed right into the locker. Look at that back wall. Almost 1-1/2” gap. New weather strip insulation closed the gap, but that’s not enough. Plus, there is a tiny access panel into the rear locker. Why? I don’t know!
So, I decided to fix it. First we got some hypervent stuff to help with the condensation that wet the plywood. That helped with the moisture last year somewhat, but not the cold.
So today, I added some 1” EPS foam insulation and topped it with new 1/2” plywood. We added 1-1/2” width to the mattress base plywood since the mattress hung over and it was hard to tuck sheets in.
1” “L” trim will hide the EPS on the aisle side.
It should help during this coming trip after Columbus Day. Attachment 353270Attachment 353271Attachment 353272
Thank you for your post and pictures. It's very helpful. Did you put any "supports" under the new plywood to keep from crushing the insulation board?
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