According to NFPA 13, how frequently should sprinkler systems be inspected?

The requirement for inspecting sprinkler systems on an annual basis is grounded in the need to ensure that these systems remain functional and capable of providing adequate fire protection. NFPA 13 outlines that regular inspections are critical for identifying any potential issues that may compromise the integrity and performance of the sprinkler system. An annual inspection allows for the assessment of the system's physical components, which includes checking the condition of the water supply, pipe work, sprinkler heads, and any associated alarms or control systems.

This frequency strikes a balance between being thorough enough to catch potential problems, yet manageable for facilities to implement. Regular checks help ensure compliance with safety regulations and can improve the longevity and reliability of the sprinkler systems. Combined with more frequent checks, such as monthly checks of water supply valves, the annual inspection serves as a key component of a comprehensive fire protection maintenance program.