We just bought a 140 yr old house that has ceilings I've never seen before. The paint does not adhere to this kind of ceiling, and very room is peeling. I do not want to lose the detail in the ceilings, especially in the hallways / stariways, as it iis curved and has much more detail than a new ceiling would. Any suggestions on:
What the ceiling are made of?
What to use to get paint to adhere?