the monster concrete firewall at the rowhouse continues to be a costly feature as we detail the building pre-drywall.
Given the enormous heat loss and conductive property of the concrete some extra spray foam appears to be a sensible approach. If poorly insulated there is a likelihood that frost could creep into the building along the wall and later on thaw and create moisture issues.
lots of foam to keep the cold at bay. The other side of the wall is exposed to the elements and could be a trouble spot if left untreated.