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Static field route #324

What do I do when not using UL 181-rated material where required?

Sealing, Leakage, Mastic & Pressure Testing.1 field-polished — seal/test detail check

If UL 181/listed material is required, wrong tape is a stop-and-verify issue. Do not leave standard cloth duct tape on a specified system.

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Field checklist

Ask foreman

This looks like non-approved tape where UL 181/listed material may be required. Do you want it corrected before test/cover?

Do not

Do not assume silver tape is acceptable because it stuck to the duct.

Why it matters

Wrong tape can fail inspection, leak testing, or durability requirements.

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