Lots to think about.......
To deal with condensation, the old Spartans have a drip channel under the windows that leads to the outer wall and then there is a space between the upper and lower skin section to make a path for the moisture from the windows can run out to the outside.
Then there are weep tubes(my name) at the bottom of the walls in the c-chanel that allow moisture to funnel through the floor and drip out under the trailer........but that is 1940s technology. I read here that someone used copper tubing with a flared end epoxied in place........brilliant idea....sorry I can not remember who to give credit to for that one.
A few decades ago the construction industry got all excited about sealing up home....super insulated and everything sealed up tight as a drum.....everyone who lived in them got sick and the home rotted away....so then they started adding more vents.
The idea here is we need to have our trailers breath, but we also need to avoid moisture getting in and control moisture getting out.
I have not read much about AS yet, but was impressed with what I saw on the Spartans.