Upon observing non-conforming work in progress, the designer's primary responsibility is to act immediately to prevent further incorrect installation, thereby mitigating potential costs and schedule delays. The most appropriate and effective course of action is to first alert the individuals performing the work (the subcontractor) to pause and then immediately inform the general contractor, who holds the contractual responsibility for all work on site. The general contractor is the only party with the authority to direct the subcontractor to stop and correct the work. This two-part action ensures the issue is addressed with the required urgency and through the proper channels.

A. Report the discrepancy in a memo to the contractor and client: This method of communication is too slow for an issue happening in real-time and would allow more non-conforming work to be installed.

B. Reach out to the glazing supplier to find out which finish was ordered: This bypasses the general contractor, who is responsible for procurement and managing suppliers. The designer's communication must be with the contractor.

C. Explain the issue at the next owner, architect, contractor (OAC) meeting: Waiting for a future meeting is inappropriate as it would permit the entire incorrect installation to be completed, leading to significant and costly rework.

---

1. Piotrowski

C. M. (2017). Professional Practice for Interior Designers (6th ed.). John Wiley & Sons. In Chapter 19

"Contract Administration: Construction and Order Installation

" the text emphasizes that during site visits

the designer's role is to determine if work conforms to the contract documents. If discrepancies are found

the designer must promptly notify the contractor. Immediate notification is crucial to avoid costly tear-out and replacement. (pp. 488-490).

2. American Institute of Architects. (2017). AIA Document A201–2017

General Conditions of the Contract for Construction. Section 4.2.6 states

"The Architect has authority to reject Work that does not conform to the Contract Documents." This authority necessitates prompt action when non-conforming work is observed. While Section 4.2.4 establishes that communication with subcontractors is through the contractor

the immediacy of the situation requires alerting the subcontractor to pause while simultaneously engaging the contractor to formally direct the work.

3. Ballast

D. K. (2021). The Interior Design Reference & Specification Book (Updated & Revised). Rockport Publishers. The section on Contract Administration outlines the designer's responsibilities

which include site observation to protect the owner against defects and deficiencies in the work. It reinforces that all communication regarding the work must be directed to the general contractor for action. (pp. 280-281).