What is one common issue that commissioning aims to uncover?

The focus of commissioning is to ensure that all systems in a building operate as intended, which includes verifying the function of control systems. Control systems are integral to the management of HVAC, lighting, and other critical building functions. Commissioning activities typically involve extensive testing and verification protocols to identify any malfunctions within these systems. By uncovering issues related to control systems, the commissioning process helps improve overall building performance and efficiency, ensuring that the systems react properly to operational demands.

Design discrepancies, insufficient materials, and time delays can also be important issues within a project, but they are typically addressed in other phases of construction and project management. Commissioning primarily targets the operational performance of installed systems, making control system malfunctions the most relevant issue among the choices provided.