Do not hang mechanical ductwork from ceiling grid wires.
Check
Find every place duct/flex is tied to ceiling grid wire.
Remove load from the grid before cutting ties.
Install independent support from structure.
Check flex shape and diffuser alignment after re-supporting.
Tell foreman if ceiling grid has been bent or overloaded.
Steps
Find every place duct/flex is tied to ceiling grid wire.
Remove load from the grid before cutting ties.
Install independent support from structure.
Check flex shape and diffuser alignment after re-supporting.
Tell foreman if ceiling grid has been bent or overloaded.
Say this to your foreman
The duct/flex at [location] is tied to acoustic ceiling grid wire. I stopped using the grid for support. Do you want independent supports dropped from structure before ceiling close?