Ductwork in Atriums

For this atrium, what smoke control design, duct materials, and damper requirements does the engineer specify?

I'm checking ductwork in atriums at [location]. I found ductwork for smoke control in large atrium or open spaces. For this atrium, what smoke control design, duct materials, and damper requirements does the engineer specify?

Fire/Smoke Dampers & Rated Assemblies 3rd Year RED

Stop if

Hold point on ductwork in atriums: 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 treat atrium duct as standard exhaust. Don't ignore smoke control design.

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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