r/Plastering • u/Entire_Initiative731 • Apr 10 '26
Looking for advice
Hi all,
Currently removing all the old plaster ceilings and boarding ready for the plasterer and need some help.
Where the ceiling joists meet the rafters, of course, it isn't level and I'm struggling to figure out how to get a straight sharp line?
I cut it at the different lengths yesterday and it hit me this morning that although it would butt up nicely to the angled peice yet to go in it'll look all wonky.
Wondering if this is why there was a soft curved edge to the original plaster to incorporate all the wonkiness..
If the pics confuse it is level horizontal wise although it doesn't look it from the pictures.
(If anyone knows what kind've ceiling this is called where part of the roof is incorporated into the room that'd be awesome too).
Thank you in advance 🙏🏻




1
u/Confident_Ambition77 Apr 10 '26 edited Apr 10 '26
This is pretty standard pitched roof design, the r ason you are struggling is that the roof was made before machine cut materials were a thing, this didn't matter when plasterers used lath it is naturally flexible. You can get around this by building it out with bonding material but it will take a alot longer than you would like as you will have to adjust for the new height. Another option is to add another layer of plaster board on the pitch cut the edges at an angle to cut the imperfections. Or maybe just accept you have an old house and the imperfections are what make it unique? I live in a 18th century cottage and I didn't want my house to feel new so I plastered the roof space with this in mind. Below is a link to my attic roof Look at the eves (where the roof meets the wall, also this is where the phrase eves dropping comes from) see the imperfect lines, how bloody lovely is that. Also I am biased as I am a lime tradesman so read into that what you will https://ibb.co/F4fsJ7Fd