TinnerFlow logoTinnerFlow™
Mistake & recovery · #120

Routing duct through a structural bay without engineering approval for the opening

3rd YearInstallation

Any penetration through a structural member — beam web, joist chord, load-bearing wall — requires a stamped engineering detail. Submit an RFI before cutti…

Search Field RescueAsk ForemanOpen in mistake guide

Safer field move

Any penetration through a structural member — beam web, joist chord, load-bearing wall — requires a stamped engineering detail. Submit an RFI before cutting. Unauthorized structural penetrations can result in stop-work orders and dangerous conditions.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Routing duct through a structural bay without engineering approval for the opening. What’s the approved correction for this job?

Do not

Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.

Related mistakes

Related apprentice questions