Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
Good day
by newkirkinc1 - March 29th 2024 6:52 pm
Crazy mods
by MufflerMan Mike - March 28th 2024 9:38 am
Lew Greger
by MufflerMan Mike - March 27th 2024 5:15 pm
1987 G20 Gypsy
by SDMickey - March 25th 2024 9:39 pm
Featured Links


Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 2 1 2
Re: Help with customizing
stpaddy2017 #746760 March 29th 2019 11:45 pm
Joined: Jun 2010
Posts: 18,286
Likes: 559
Offline
Joined: Jun 2010
Posts: 18,286
Likes: 559
foam on the wall will draw moisture without a plastic bearier ... home insulation will do the same. The moisture will rust out your van. Others know more than I do.

https://www.vanning.com/threads/ubb...her-with-wall-insulation.html#Post719394

https://www.vanning.com/threads/ubbthreads.php/ubb/showflat/Number/743398/Searchpage/1/Main/70881/Words/%2Binsulation/Search/true/re-insulation.html#Post743398


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
AdSense long
Re: Help with customizing
stpaddy2017 #746774 March 30th 2019 11:02 am
Joined: Nov 2013
Posts: 3,692
Likes: 32
pooh-bah
Offline
pooh-bah
Joined: Nov 2013
Posts: 3,692
Likes: 32
I have never added any insulation to my vans, but what frscke1 is saying would certainly qualify as the "prevailing theory" on this forum. So I'd certainly take that into consideration.

If I do anything more with my current van, it will be in the vein of a stick-on auto sound deadening with foil shield, or a roll-on product like a LIzard Skin or Eastwood coating.

Lizard Skin Link

Eastwood Link

While many don't like fiberglass bat insulation in a van, for the reasons frscke1 mentioned, it was the "factory fill" on my '95 Chevy Shorty Sante Fe conversion, and is also used in my '97 Chevy Express Midwest Conversion. My dad had 3 other conversion vans before this Express, and I suspect (but do not know for a fact) that they all had fiberglass bats for insulation. Cheap, light, easy to work with and fairly effective, I think it was the default insulation for most conversions.

But if you have a window or body seam leak, it WILL hold water like a sponge. Just goes with the territory.

Closed cell. I have no hands on experience, though I am eyeing some poly-iso on Craigslist for possible use in my shop. Poly Iso is billed as having "low water absorption and low vapor transmission" according to one manufacturers site. So that sounds promising, but not perfect.

Re: Help with customizing
stpaddy2017 #746776 March 30th 2019 11:25 am
Joined: Feb 2002
Posts: 522
addict
Offline
addict
Joined: Feb 2002
Posts: 522
My van came with fiberglass. A few years back I saw little bubbles on my back door. I took off the interior panel and the door had a pile of wet fiberglass at the bottom. After I got it good and dry I sprayed rustproofern it. The water came.in the leaky door seal and down inside the door. Even with drain holes that fiberglass held the water.

Re: Help with customizing
frscke1 #746961 April 03rd 2019 7:09 pm
Joined: Mar 2019
Posts: 10
S
stranger
OP Offline
stranger
S
Joined: Mar 2019
Posts: 10
Originally Posted by frscke1
foam on the wall will draw moisture without a plastic bearier ... home insulation will do the same. The moisture will rust out your van. Others know more than I do.

https://www.vanning.com/threads/ubb...her-with-wall-insulation.html#Post719394

https://www.vanning.com/threads/ubbthreads.php/ubb/showflat/Number/743398/Searchpage/1/Main/70881/Words/%2Binsulation/Search/true/re-insulation.html#Post743398



Thank you I was wondering about a vapor barrier but this foam is anti microbial, bacterial. I did not consider water. Wanted to put a sheeet of mylar on first to deflect incoming and on wall facing inside to keep heat in? I think im gonna post in a diffferent section. ty for your help/

Page 2 of 2 1 2

Moderated by  Astro, lukester, nautic1, Virtual 

Link Copied to Clipboard
Donate


Upcoming Events
discovery
Who's Online Now
1 members (newkirkinc1), 4 guests, and 5 robots.
Key: Admin, Global Mod, Mod
Newest Members
TheDrunkenGunsmith, Jac, LOVclassics, ZenMuffin, Milkman530
12724 Registered Users
Top Posters (30 Days)
SDMickey 125
frscke1 25
CatFish 24
Wedgy 21
Forum Statistics
Forums68
Topics35,746
Posts537,916
Members12,725
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.7.4