rob wrote:
Please help solve an argument between me and my dad, I don't think
there's really that much difference between plasterboarding and
skimming a wall and plastering it properly, my dad however says that
plasterboarding and skimming causes damp where as normal plastering
wouldn't. The wall in question is an outside wall in a mid-terrace
bedroom.

Damp?
Drylining (pb + skim) hasn't been known to 'cause' damp, although I don't
suppose it would last very long under already damp conditions.
Plastering won't get rid of damp neither....under normal conditions, there
is no difference between the two and drylining is carried out in 90% of
newbuild houses these days as well as extensions etc, not only for ease but
also for it's insulating properties, it does have drawbacks though, like the
thread below, 'hanging cupboards on plasterboard wall'