Never Defeat A Life-Safety Damper
Propping/wiring/blocking it — life-safety violation
Red / Stop And Verify1stBatch 4
What This Helps With
Propping/wiring/blocking it — life-safety violation
Apprentice words: don't prop fire damper
Trade terms: defeating life-safety, propping damper, blocking blades
Check First
That it must operate freely
call foreman for any conflict
What Not To Do
Zip-tie, wedge, or block a rated damper
What can go wrong: Propping or wiring a rated damper open
Better Foreman Question
This rated damper is in my way — how do we handle it right?
Verify With
Reference type: NFPA 90A
Source to verify: NFPA 90A; AHJ; foreman
Safe wording: RED ZONE. Absolute: never defeat. Escalate.