After occupancy, commissioning benefits persist for which duration?

• A. End after the first year
• B. Persist for the life of the building
• C. Persist only during warranty period
• D. Persist for five years

Answer: (B)

The lasting value of commissioning lies in establishing a verified, documented baseline for how systems should operate and how the building should be run. That baseline, along with operator training and performance criteria, remains relevant for the building’s entire life. Even as equipment or control strategies change, the established expectations and procedures continue to guide operations, maintenance, and future optimization. Triggering re-commissioning or retro-commissioning can refresh these benefits, but the advantages don’t end after a fixed period; they persist as long as the building exists.