Multi-section fire/smoke dampers are spliced with the wrong screws
No - multi-section damper assemblies must be joined exactly per the manufacturer/listed installation. Remove wrong fasteners and use the approved splice/hardware detail.
Do not use drywall screws or random hardware to splice listed fire/smoke damper sections.
Check
Confirm damper model, size, number of sections, sleeve, wall rating, and installation sheet.
Identify any wrong fasteners or missing factory splice components.
Check blade operation after the sections are joined.
Verify retaining angles, sleeve position, actuator access, and firestop sequence.
Photo correction for inspector/closeout.
Steps
Confirm damper model, size, number of sections, sleeve, wall rating, and installation sheet.
Identify any wrong fasteners or missing factory splice components.
Check blade operation after the sections are joined.
Verify retaining angles, sleeve position, actuator access, and firestop sequence.
Photo correction for inspector/closeout.
Say this to your foreman
The multi-section FSD at [location] was spliced with the wrong fasteners. I checked the installation sheet and factory parts. Do you want it pulled apart and reassembled with the approved splice hardware before inspection?