When we got to the ceiling in our 4104, we used Fibre Decor mfg-ed. by Fibre Wall of Canada.
It comes in bags much like papiermache, it is mixed with water and applied per package instructions,
it has worked well for us, we do have an occasional crack but a little water and a roll with the
roller provided takes care of it. It has some sound deadening qualities as well a some insulating
ability. It comes in a number of colors, too.