would be a massive undertaking. The way I look at it if the building still
had a flat roof and venting was not possible there must be an accepable and
code legal way of eliminating all the moisture build up.

Any help will be appreciated


Well, running a dehumidifier will work, until you come up with
a better idea, but if the indoor temperature is cooler than
the outdoor temperature, and it's humid out, then any air coming
in is going to drop water SOMEWHERE. Best I can think of
is to limit air infiltration, and try to control where
"somewhere" is.