You are reading a single comment by @CYOA and its replies.
Click here to read the full conversation.
-
Underneath this there will be brick.
The dot and dab on a damp wall can force the damp through the dabs and you see it through the plasterboard.
If it were me I'd remove any loose plaster, try and sort out any signs of damp, then use bonding coat to fill it up to level and skim the wall.
-
That looks like manky old lime plaster.
How old is your place? Is it an external wall?
-
Probably a harled coat of lime. IANALP. (but just spent weekend lime mortaring/plastering/patch repairing.)
rj
NotThamesWater
Kurai
@CYOA
Touching it it feels kind of sandy with some gravel mixed in.
1 Attachment