On one wall I have to install insulation, but unfortunately its going to be
installed on the wrong side of the wall for the vapor barrier. I personally
haven't found a source for insulation that doesn't have a vapor barrier -
otherwise this would be a moot point, but I'm wondering if I can just push
the insulation into the wall - vapor barrier and all. It should stay put
from friction but I didn't want to just start stuffing it in there and have
it turn out to be a bad idea.