Mistake & recovery · #160

Signing off on insulated duct that has vapor barrier damage allowing condensation into the liner

4th YearSheet Metal Work

Inspect vapor barrier continuity on every insulated duct section before sign-off. Any tear, puncture, or unsealed joint in the vapor barrier allows moistu…

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Inspect vapor barrier continuity on every insulated duct section before sign-off. Any tear, puncture, or unsealed joint in the vapor barrier allows moisture to migrate into the liner insulation, causing mold and liner degradation. Repair or reject damaged sections.

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Can you verify this before I keep going? I’m looking at: Signing off on insulated duct that has vapor barrier damage allowing condensation into the liner. What’s the approved correction for this job?

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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.

Signing off on insulated duct that has vapor barrier damage allowing condensation into the liner

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Do not

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