159" Otto Vahn - Page 2 - Ram Promaster Forum
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post #11 of 18 Old 02-15-2019, 08:05 PM
SteveSS
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Those extra holes aren't factory features. Sounds like a used PM that had shelving (etc) installed at one time. Silicone would work, but for these kinds of things I prefer a polyurethane sealant like Sikaflex 1a. It behaves much better.

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2017 3500 159 EXT gas, silver metallic. Shiny's build thread
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post #12 of 18 Old 03-04-2019, 03:56 PM Thread Starter
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(Almost) Finished the subfloor! Thanks all for the advice. I've got to get longer bolts for the floor, but I've come up with a really good method for identifying where they are. (Thank you nail polish).

Next up is insulation. We've decided to go with Havelock Wool. Question to the community: did you insulate the lower channels near the floor? Another topic I've read conflicting opinions. Some say this is meant for drainage. Thoughts and opinions welcome.
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post #13 of 18 Old 03-04-2019, 04:19 PM
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There is no reason to insulate below the black triangles.

When the plastic bits that hold the outside black trim on start to leak you don't want any insulation down there.
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post #14 of 18 Old 03-04-2019, 04:29 PM
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Don’t use that space. It will get wet in there and any fiber or fabric will keep it wet. I like the idea of the wool insulation and would not hesitate in a building. In a van I’d want to do more research on how to handle the moisture (condensation) in the walls and against the van’s metal skin. What did you find about that? I see the makers list it for vans but I could not find anything on moisture handling.

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post #15 of 18 Old 03-04-2019, 05:02 PM Thread Starter
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Originally Posted by RDinNHandAZ View Post
Donít use that space. It will get wet in there and any fiber or fabric will keep it wet. I like the idea of the wool insulation and would not hesitate in a building. In a van Iíd want to do more research on how to handle the moisture (condensation) in the walls and against the vanís metal skin. What did you find about that? I see the makers list it for vans but I could not find anything on moisture handling.
From everything I've read, it does quite well with moisture and is the number one reason we chose this type of insulation. The one thing that is lacking is long-term use-cases, but from everything I know about wool - it should be up to the test.
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post #16 of 18 Old 03-17-2019, 01:38 AM
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Any updates on the wool insulation?


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post #17 of 18 Old 03-26-2019, 10:12 PM Thread Starter
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Any updates on the wool insulation?


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Chipping away at the insulation little by little. So far, it's very easy to work with and haven't had any issues with it.
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post #18 of 18 Old 03-28-2019, 07:11 PM
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I have used the Havelock wool for insulation. If you are interest, the report is here: https://www.promasterforum.com/forum...t=84051&page=4

2017 PM gas, high roof, 159wb.

Build thread: https://www.promasterforum.com/forum...ad.php?t=84051

The detailed build description is here: https://wtvanconversion.blogspot.com...-platform.html
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