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Old 03-17-2006, 11:57 AM   #1
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1967 17' Caravel
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Spray insulation

Has anyone ever used spray insulation when doing a full restoration to replace the fiberglass stuff. I,m completely rebuilding our 67 caravel and would like to know if there is any type of spray insulation (commercial grade)
that is recomended.
Eric in Vancouver B.C.

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Old 03-17-2006, 12:12 PM   #2
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My brother-in-law just used this stuff to do an addition to his house and has tried to talk me into using it in the camper. One drawback is that is expensive. Another is that it would completely fill the walls. I've also wondered how it would stand up to the movement of the trailer. One the other hand, it's supposed to be a very good insulator.

Maybe somebody with actual experience will chime in.



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Old 03-17-2006, 12:47 PM   #3
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It is my understanding that if you use it in an Airstream, it will eventually pulverize due to the amount of movement. And I am sure that cost is a major issue too, especially from a production point of view.

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Old 03-17-2006, 03:17 PM   #4
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The spray-in stuff, in my limited experience, appears to be much heavier than batt insulation. In a house, no big deal. But in a travel trailer it may add a lot of weight.

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Old 03-17-2006, 03:32 PM   #5
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Are you talking about the wet foam stuff that hardens or the blown in kind used in wall and attics?
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Old 03-17-2006, 09:03 PM   #6
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I have used the spray insulation to push out small dents and then to keep the dent from falling back in. After a couple years of having it in place I removed part of the panel and it was still in place with no noticeable pulverization. Keep in mind that when you do use this product the panels will no longer have movement but be rigid.
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Old 03-17-2006, 09:37 PM   #7
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Welcome Eric from a fellow Vancouverite (well, North Vancouver). The rigid foam insulation does give you greater R-values in less thickness than fiberglass batt insulation, but it is heavier and it can lose insulating value if wet. The other problem I see is that it's permanent (or at least very hard to remove), so if you need to repair wiring or plumbing that gets coated with the stuff, you could be in for a real time of it. The fiberglass batt insulation will be a lot easier to work with. Fiberglass isn't the best or most high tech insulation, but it performs adequately and predictably.


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