What is the typical process for commissioning and re-commissioning a building after major renovations?

• A. Hire a security guard
• B. Develop a pre-commissioning plan, perform functional testing, identify and fix deficiencies, and verify performance
• C. Wait for energy usage to drop automatically
• D. Repaint walls and replace carpet

Answer: (B)

Commissioning and re-commissioning after major renovations focus on validating that every building system operates together as intended and meets the specified performance. The process starts with a pre-commissioning plan that defines scope, test procedures, acceptance criteria, and responsibilities. Next comes functional testing where equipment and control sequences are exercised under normal and peak conditions to confirm proper operation. Any deficiencies are logged, corrected, and re-tested to ensure issues are resolved. Finally, performance verification checks that actual results—such as comfort levels, energy use, and safety—align with design goals, often followed by operator training and updated operation and maintenance manuals. This approach ensures the renovation delivers expected performance rather than relying on cosmetic changes, waiting for energy reductions, or unrelated activities like security staffing.