Best placement for extraneous fanfold

In north Ohio where frost line is just over 36″ down.  I am in the process of insulating my basement walls where I’ve already used a layer of 1″ EPS… In north Ohio where frost line is just over 36″ down.  I am in the process of insulating my basement walls where I’ve already used a layer of 1″ EPS…Read MoreGreenBuildingAdvisor