CDC acted as the Design Professional and owner’s construction manager and full-time inspector during all phases of work. CDC developed design details and specifications and solicited pre-qualified bidders to renovate the existing system. Custom designed “adapters” were attached to the existing aluminum grid system to accept new glass and horizontal framing members. The new glass was installed with structural silicone along the vertical edges. Exterior exposed framing elements were eliminated from vertical members for a flush glazing look. All of the glass replacement was performed while the building was 90% occupied.