JK wrote:
I'm adding a bathroom to the side of an existing studio. It is actually
a partitioned-off portion of an uninsulated garage beside the studio.
The studio has fiberglass insulation, plastic vapor barrier and drywall
on that side. Should I remove the plastic between the old room and the
new bathroom? Or should I just put a new vapor barrier on the bath
side. I know the moisture has to escape somehow, but this common wall
is about 9 feet long, with a door in the middle. We are in the damp
Pacific NW.

JK


In the first place, the PN is not that damp unless
you are living on the coast, especially on the
Olympic Peninsula.

Second, leave the plastic barrier alone! You
should put an exhaust fan that blows up through
the roof, or out the side. But even if you have
no fan, just leave the door open between the
bathroom and the studio. That wouldn't work in
the southeast, but it will work fine if you are
not directly on the coast.