Doors are installed similarly to windows. A 2x4 ripped is offset at jamb and head. The door frame rests on plywood spacers and is glued/sealed with adhesive foam. The frame is over a self-adhered flashing at sill which itself sits above rigid EPS at concrete foundation. The EPS is painted with compatible damp-proofing. 2 layers of rigid roxul provide a thermal bridge free installation at the wall. On the interior the door is taped to the concrete topping at floor and to the studs at jamb & head.
The door install shares the non-conventional details as the wall detail (see Part 4). The exterior insulated strategy shown here is considered the most robust (http://buildingscience.com/documents/insights/bsi-001-the-perfect-wall) is endorsed by the Home Protection Office (https://hpo.bc.ca/r22-effective-walls-wood-frame-in-BC) the same people who insure your home.