I've seen this sort of textured surface on ceilings of properties that might be damp (I'm property searching). Could someone identify it please - is it something to cover up bad things?
https://lc.zoocdn.com/390bfd29eed78b68566e85ea552e50774c7231b5.jpg
https://lc.zoocdn.com/390bfd29eed78b68566e85ea552e50774c7231b5.jpg