Extreme temps & a fear of mold

[julie.paye.16]

We moved into a 30ft yurt in Vermont a little over a year ago. We ended up adding traditional fiberglass insulation between the 2x4s that came with the snow and wind package. This helped keep more heat in... But we got ice building up between the insulation and the wall - presumably because there isn't a moisture barrier like conventional homes. Anyone encountered this problem before? Are afraid of mold