Hello! We are helping a portable church set up their space in an elementary school. The consultant is suggesting "scuba wall" a curtain that hangs from the ceiling, attached by magnets to the drop down ceiling grid. Our facilities team is concerned about the sprinkler system being obstructed by these curtains for two hours a week. The cost of dropping the curtains 18" isn't an option for the facility. Are they breaking codes if they do not drop them 18"?