I do not know what this unknown metal component in the rated wall is - could it be a fire damper?

If unknown duct hardware is in or near a wall/floor/shaft and has a label, sleeve, actuator, fusible link, or access panel, stop and identify it before building around it.

Fire/Smoke Dampers & Rated Assemblies 4th Year RED

Stop if

I see a labeled/framed piece in the wall and I think it may be a damper. Can you identify it before I work around it?

Watch out

Do not treat unknown wall hardware like normal duct.

Check

Look for label/tag, sleeve, retaining angle, actuator, fusible link, or access side.
Do not cover, drill, fasten, paint, or insulate over it.
Use Photo ID or ask the foreman to identify it.

Steps

Look for label/tag, sleeve, retaining angle, actuator, fusible link, or access side.
Do not cover, drill, fasten, paint, or insulate over it.
Use Photo ID or ask the foreman to identify it.

Say this to your foreman

I see a labeled/framed piece in the wall and I think it may be a damper. Can you identify it before I work around it?

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