So, I looked closer and I have a theory based on what you guys have pointed
out plus reexamination.

This is a westy, and it had the insulation in there (I just pulled the last
of it a couple days ago).  I'm wondering if maybe water got trapped back
there, evaporated, and came up between the sheet metal forming the outer
wall of the van and the metal forming the inner wall, then happily
condensed on the cold metal up there.

I don't know if this goes all the way through, but I was able to slip a
piece of paper between the two pieces of metal in question, pretty far in:

http://imgur.com/xPauLzT

Seems like this seam could use a bead of caulk or something if anyone's
doing a cabinets-out refurb.

Might be able to put something along the top with the seal removed, I would
just be worried about messing with the fit of the seal at that point.

Anyway--thanks guys, as always, for your insights!

mike

On Tue, Dec 23, 2014 at 3:28 PM, Ben <syncro@gmail.com> wrote:

> You live and breathe in the van. Not to mention the occasional coffee or
> soda spill. Evaporation happens. What doesn't get vented out, eventually
> condenses on cold spots such as behind door and wall panels. It's worse in
> the Weekenders and Westies with fiberglass insulation. Water droplets
> collect therein, before dripping to the floor sill. That's how you get rust
> at the horizontal bodyseam on the driver's side.
>
>
> BenT
> sent from my electronic leash
>
> > On Dec 23, 2014, at 11:45 AM, Jon VO <jondvo@GMAIL.COM> wrote:
> >
> > I am seeing a tiny puddle of water at the floor under this window on my
> > van. Interior removed for updates. The extra rivets are surrounded by
> > sealant, which looks different in the photo...
> > I would expect the water is coming through either the gasket itself, or
> > the channel the window resides in.
> > https://imgur.com/WnUKl7i
> >>
>