Static field route #1011

Old duct insulation looks unknown or possibly hazardous before I cut it

Cutting, Holes, Openings & Field Modificationsred

Stop before disturbing unknown insulation or residue. Treat renovation materials as suspect until your foreman/safety process verifies what it is.

Open in Field Rescue Open category

Field checklist

Do not cut, rip, grind, drill, or brush the unknown material.
Take photos without disturbing it.
Identify building area, approximate age if known, and what work was planned.
Ask foreman/safety lead what the hazmat procedure is.

Ask foreman

This existing duct insulation/material at [location] does not look like normal new wrap. Before I disturb it, do we need safety/hazmat verification?

Do not

Do not sample it yourself, tear it open, sweep it, blow it, or keep cutting because the hole is already marked.

Why it matters

Unknown existing materials can trigger safety, regulatory, and building-owner procedures. The right field move is hold and verify.

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