Mullion cover hanger and curtain wall insulation system incorporating the same

A curtain wall insulation system for insulating a curtain wall structure connected to a building structure, the curtain wall structure spaced from a floor slab of the building structure to define a perimeter void and the curtain wall structure having framing defined by at least first and second vertically disposed and parallel mullions, at least one upper horizontally disposed transom, and at least one lower horizontally disposed transom, the curtain wall insulation system comprising:

• a curtain wall insulation disposed within the framing and attached to the framing;
• a safing insulation disposed within the perimeter void and compression fit between the curtain wall insulation and the floor slab;
• a mullion cover hanger attached to the mullions, the mullion cover hanger having:
• a main body having a top surface, a bottom surface, a first side edge, and a second side edge;
• and
• a plurality of hook members extending outward relative to the top surface of the main body;
• and
• a mullion cover attached to the mullion cover hanger.