Trailer Trash skirting

[Raider Bill]

Vapor barrier for sure.
Whatever I find cheap for skirting I guess. Leaning towards vinyl siding with soffit vents as suggested here.
Not looking forward to crawling under it and laying the visqueen but gotta get it done.

This trips goal is the have 12' of ICF walls up and poured before I come home.
Trailer issue just get's in the way but I shoulda/coulda done it before this. :-[

[Warbird]

How much space do you have under it?  Our crawl space is about 3' at the highest.  Sure wish when they put the home on it's permanent foundation that they would have gone 1 more foot up.

I've heard of only 2 problems with having vapor barrier on the crawl space walls and no ground barrier down...  moisture from the ground can leech into the house raising interior humidity which is usually bad.  It can lead to mold growth and health problems.  The other problem is dust and mold spores from the ground can get into the house easier.  If you have a decent ground barrier tho, having the crawl space walls sealed can make a huge impact on how easy it is to heat/cool the house.

[beenthere]

I've assumed (maybe wrongly) that the vapor barrier talked of here is the ground barrier, and is on the ground...not tacked to the underside of the trailer.  That would be the wrong place for the vapor barrier, IMO.
If anything up there, something like Tyvek to help stop drafts (not vapor) would (could) be tacked to the trailer joists.

Just a ground (vapor) barrier on the ground is what I've been referring to here, for clarification. 

[Warbird]

The vapor barrier I've been talking about consists of a ground barrier and a vapor barrier on the inside of the crawl space walls (skirting).

[Raider Bill]

Trailer has a vapor barrier attached underneath to the bottom. I would lay one down on the ground.

Exsiting one has got vert wet before as the insulation has expanded and the plastic is sagging.

I have about a foot on one end and maybe 4 ft on the other between the bottom of trailer and ground.

[KarenKae]

Raider,
One other little thing that I did with my vapor barrier was put down some dry lime on the ground before you lay down the plastic.  Really helps keep down mushrooms and other spore types from forming under the barrier.  In the places that I didn't get very good coverage, like up on rocks against an edge, I get fungi. I have to scrape it off and sprinkle more lime, but where I got pretty even coverage, the ground is dry and fungi free. So if you DO have to slide under there for a plumbing repair or such, that is one less thing to worry about.