Room is 22'W x 47'L x 9'H, projector is a JVC RS1. Standard sheet rock walls and wood floor, thus I assumed the ceiling would be standard sheet rock too with studs every (xx) feet/inches. I have minimal knowledge about both construction and mounting projectors to ceilings, so I assumed I could find a stud in the vicinity of ~18' from the screen and proceed with a Chief bracket from there.
When mentioning these plans to the landlord yesterday, he became nervous about this idea since he installed the sheet rock ceiling onto "Chicago bars" for its construction. Ignorant of this term, I turned to Google and AVS for help, but searches turned up virtually nothing relevant to my quandary. This Bob Vila video was pretty much it, which leads me to believe it's similar to a drop ceiling.
Anyway, he's hesitant about me ceiling-mounting the RS1, but I see no other option. His fear is that the ~30lb total weight will eventually bow the sheet rock in his ceiling downward, potentially to the point of failure. I've attached a picture of the room -- currently overhead are small, recessed lights and circular emergency drop-down water sprinklers.
Is anyone familiar with mounting projectors into this style of ceiling construction? Where can I learn more?

When mentioning these plans to the landlord yesterday, he became nervous about this idea since he installed the sheet rock ceiling onto "Chicago bars" for its construction. Ignorant of this term, I turned to Google and AVS for help, but searches turned up virtually nothing relevant to my quandary. This Bob Vila video was pretty much it, which leads me to believe it's similar to a drop ceiling.
Anyway, he's hesitant about me ceiling-mounting the RS1, but I see no other option. His fear is that the ~30lb total weight will eventually bow the sheet rock in his ceiling downward, potentially to the point of failure. I've attached a picture of the room -- currently overhead are small, recessed lights and circular emergency drop-down water sprinklers.
Is anyone familiar with mounting projectors into this style of ceiling construction? Where can I learn more?
