Ductwork in Parking Garages

For this parking garage exhaust, what duct material and fire rating does code require?

I'm checking ductwork in parking garages at [location]. I found ductwork in parking garage for vehicle exhaust or ventilation. For this parking garage exhaust, what duct material and fire rating does code require?

Grease Duct, Kitchen & Industrial Exhaust 2nd Year RED

Stop if

Hold point on ductwork in parking garages: I have the location, photo, drawing/detail, and what was checked. Who should verify before this gets cut, covered, lifted, sealed, energized, or signed off?

Watch out

Don't assume standard duct is acceptable in parking garages. Don't ignore vehicle exhaust corrosion.

Check

room/grid/area
photo of condition
drawing/detail
manufacturer/model if visible
what I already checked

Say this to your foreman

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