| Author |
Message |
mleibelt (66.187.36.41)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, September 19, 2004 - 11:52 pm: | |
What are the thoughts on placing a vapor barrier inside a coach under the wall and floor covering????
Mark
MCI 102A3 |
Marc Bourget (209.142.38.81)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 2:41 am: | |
What method and technique of insulation are you planning on using? It may be a moot question.
Keep in mind the more "sealed" the conversion the more attention you have to pay to air exchange.
Onward and Upward
Marc Bourget |
cgoodwin (208.12.29.127)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 12:19 pm: | |
I just finished gutting my Neoplan and found ridgid insulation between the outer skin and the inner Oilboard, which had become water damaged from condensation. I sanded what surface rust I could find and treated the metal with POR15, replaced the insulation then sprayed the ribs and cross bars with 3M spray glue and lined everything with silver Mylar film as a vapor barrier. Over this I am installing varnished 1/4" Birch veneer plywood.
I am a proponent of vapor barriers as 9/10 of the vehicles which come into my shop with moisture problems can be traced to some hack removing the vapor barrier from a door while working on the switches or windows, replace the vapor barrier and the problem is gone.
Chris |
Gary McFarland (Gearheadgary) (209.128.79.46)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 12:22 pm: | |
Does the vapor barrier go between the insulation and the interior?
Or the insulation and the skin?
I think the former, not the latter.
Gary |
mleibelt@maqs.net (66.187.36.171)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 4:40 pm: | |
OK....
Was planning on spraying the inside with urathine (sp) and the vapor barrier between the uratrhine and the interior wood...
Mark |
Gary McFarland (Gearheadgary) (68.250.2.76)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 5:29 pm: | |
OK, you beg another question.
Is there a corrosion/rust problem of the urethane direct contact to metal?
some have said yes, but I'm not sure I give them a lot of credit.
gary |
Buswarrior (Buswarrior) (64.229.211.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 20, 2004 - 9:12 pm: | |
Hello all.
Vapour barrior goes closest to the inside, or the "warm side" if you think in terms of the heating season.
But...
If you ever get moisture into the walls/ceiling because of leaks or whatever, will it be able to get out?
Ahh, the more we know, the more complicated it gets...?
happy coaching!
buswarrior |
Ron Walker (Prevost82) (209.52.245.237)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 21, 2004 - 4:15 pm: | |
Hi Gary ...my 82 Prevo was sprayed from the factory. I couldn't find any rust on the steel frame where it made contact with the foam insul. but there was rust where there was none. Make sense, if the oxygen can't get at the metal then it can't rust.
Ron |
Gary McFarland (Gearheadgary) (209.128.79.46)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 21, 2004 - 5:01 pm: | |
On one of the skoolie lists, there was a ruckus about spray-on insulation having acids that are corrosive to steel, and cause some sort of PH/Oxygenating process (I'm no chemist) that causes the bus to spontaneously POOF! into a pile of rust.
At least thats what I thought they said....
It was either that or something about using government cheese for fuel.
Gary |