NFPA (Fire) 105 ✓ Most Recent

Consult the most up-to-date requirements for smoke door assembly and opening protective performance to help protect people and property from deadly smoke hazards.

Smoke can kill people and damage buildings during a fire. NFPA 105, Standard for Smoke Door Assemblies and Other Opening Protectives, can help installers, engineers, facility managers, and authorities having jurisdiction (AHJs) verify that smoke doors, smoke dampers, and other opening protectives are properly maintained and ready to do their job.

NFPA 105, Standard for Smoke Door Assemblies and Other Opening Protectives, offers designers, engineers, installers, and contractors the most comprehensive requirements for the performance of required smoke door assemblies, smoke dampers, and other opening protectives that are intended to limit the spread of smoke.

Several revisions were made for the 2025 edition of the standard, including:

• Revisions to damper definitions in Chapter 3
• New requirements in Chapter 7 for operability, prevention of blockage, replacement of dampers, visual inspection for dampers using a remote inspection method, and a performance-based design option for inspection, testing, and maintenance
• New requirements in Chapters 8 and 9 for listing of power operators