>Additionally, through all insulation there is an internal temperature gradient. If the there are discontinuities it is possible to get condensation when the te

>Additionally, through all insulation there is an internal temperature gradient. If the there are discontinuities it is possible to get condensation when the temperature / dew point align just wrong. Which is a good benefit of spray foam insulation. Your insulation is your air barrier and even if there was moisture in the pores of some open cell foam, it's not going to cause issues.