Condensation and lining paper

[Jmgriffin]

Hi,

Our landing ceiling is lined with paper. Immediately outside our bathroom, condensation has affected the paper, causing it to become damp and crack.
What’s the best course of action?
Clearly I need to remove the lining paper affected. How easy is it to just re-line a portion, such as that pictured?
Should I then re-line with condensation proof material?

 

[Harry Bloomfield]

Should I then re-line with condensation proof material?

That appears to be more than just condensation, but assuming it is - you need to control the release of moisture inside your home.

 

[Bosswhite]

Do you have a Fan in your bathroom or do you just open a window .

 

[Jmgriffin]

It’s just an open window. I’d like to have a new window to replace it with extractor fan. I did some research online and found a lot of people saying an open window is just as good, not sure about that?
The bathroom is fully tiled floors and wall.