What kind of paint is this?
Most anything is paintable. It is just about how much prep you want to put into it.
I cannot tell from the photo if that is texture or just a sheen difference? You say it is troweled on though and it looks like the ceilings have texture to them as well.
It almost looks like someone attempted something like a suede faux finish that got away from and turned fififoofoo on whomever appllied it with a gloss glaze or something. If that is the case you, and you do not have texture to sand down, you just need to wash/sand/rinse and use a nice alkyd or acrylic binding primer under a couple coats of finish.
If is textured you will have to sand it off or cover it over if you do not like it.
Last edited by sdsester; 04-07-2012 at 11:10 AM.