Just an idea a bit of the side from that Comms.
When we build fire rated walls in housing or offices we use a lot of fiber reinforced Gypsum board drywall.
The water in it is held chemically in the plaster. It takes extra heat to drive the water out of the plaster and turn the plaster back into Plaster of Paris.

It is the extra heat to break the chemical bonds between the water and plaster material that makes it so resistant to fire. Concrete has the same effect happen.

Steel truss buildings usually have a fiber reinforced cement plaster sprayed onto exposed steel and in in refineries exposed steel columns and beams are protected with a vermiculite and cement plaster mix.

Maybe Stucco will return as a popular wall finish.