Duct Firestop At Penetrations
Wrong/missing firestop, wrong system, scope confusion
Red / Stop And Verify3rdBatch 4
What This Helps With
Wrong/missing firestop, wrong system, scope confusion
Apprentice words: firestop
Trade terms: firestop, penetration seal, listed system
Check First
The listed firestop system and whose scope it is
What Not To Do
Improvise a firestop system
What can go wrong: Stuffing random material as firestop
Better Foreman Question
What listed firestop system applies at this penetration?
Verify With
Reference type: IMC
Source to verify: Listed firestop system (UL); AHJ; spec
Safe wording: RED ZONE. Use the listed system; verify scope.