Cellulose below grade?
We have a Superior Walls basement which we are trying to add more insulation to, as part of our Passive House thermal envelope. We’ve added 2″ of EPS outsulation to mitigate the thermal bridging caused by those concrete studs.
Other than that, the walls do provide 6-inch deep cavities which we can fill with insulation. Our initial thought was cellulose. But we are concerned about moisture potential below grade. I know the EPS outsulation helps move the the dew point out, but is it safe to use cellulose below grade?
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