Here's the catch: There are no wood studs. The building was converted to condos from an old hotel (circa 1895), and the plaster ceiling is attached to extruded steel lath (in a diamond pattern, with holes of about a 1/2") that is attached via steel rods to the steel and concrete beams that support the building. So, there's no wood to screw into.
The plaster will hold a screw, but it's not going into a stud. So here's my idea: Apply construction adhesive (Liquid Nails) to the back of each blueboard sheet. Then screw it up on the ceiling. The glue alone probably wouldn't hold it, and I wouldn't want to rely on the nails alone, but TOGETHER, I think it will be safe.
So my questions are:
---Is this the best way to achieve this? ---Are there any alternatives, such as using very wide screws that will grab the steel lath, that you might suggest?
Overall, I'd like to avoid framing, since it will increase the cost exponentially.