Transfer Duct Above Ceiling

This transfer duct crosses [wall/ceiling area]. Is there a rating, lining, or damper requirement here?

I'm checking transfer duct above ceiling at [location]. I found: Installer treats transfer duct like a random jumper and misses lining, damper, or rated wall requirements.. This transfer duct crosses [wall/ceiling area]. Is there a rating, lining, or damper requirement here?

Airflow, Noise, Vibration & TAB 2nd Year YELLOW

Stop if

Hold point on transfer duct above ceiling: I have the location, photo, drawing/detail/spec/submittal, and what I checked. Who should verify before this gets covered, tested, started, labeled, or turned over?

Watch out

Do not cut transfer openings through rated walls without approved detail. Do not leave unlined transfer if acoustics require lining.

Check

room/grid/area
photo of condition
drawing/detail/spec/submittal
what I already checked
what is blocking progress

Say this to your foreman

14644 transfer duct above ceiling airflow, noise, vibration & tab impacts yellow 2nd this transfer duct crosses [wall/ceiling area]. is there a rating, lining, or damper requirement here? transfer duct, jumper duct, relief air, transfer grille, above ceiling transfer installer treats transfer duct like a random jumper and misses lining, damper, or rated wall requirements.