Do butt joints in the ceiling require mudding like tapered joints, or should they be prepped similar to walls with angled cuts and 5-minute mud for a knock down finish?
Asked by Tyler Lopez 
4 weeks ago
Last Updated: August 22, 2024
Hey there! Quick question for you: when it comes to butt joints in the ceiling, do you treat them like tapered joints or prep them more like butt joints on walls? Do you cut the joint at an angle and fill it with 5-minute mud?
I’m planning on using the knockdown method on the ceiling, so I’m not sure how much mudding I need to do on the joints and corners.
Thanks in advance for any advice you can offer!
I believe it’s the same as on the walls.
Yep, same as walls.
Make sure to tape and mud all joints and corners to prevent cracks.
Ary Aldrich, yes I plan on doing that. I just wanted to confirm if the butt joints are treated the same as the tapered joints for the ceiling.
Just like any other butt joint. In my 33 years of construction, I have never v-cut the joint. I have never had any issues, so I see no need to change it up.
Try using mesh tape and then do a stomp and drag technique, it hides imperfections better. Also, mix a tablespoon of dawn dish soap and half a cup of water in a bucket of mud for smoother and slicker floats. Avoid using powdered hot patch mud for large projects, as it dries too fast. And remember, you can’t texture walls with hot patch mud.
Onna have to check that out on YouTube, thanks! Not planning on using hot mud to float, just considering using it on the butt joints that are v cut. Couldn’t find any good videos on YouTube about it
Hey, we need more screws over there. Seven per row on the ceilings, remember?
Not if he used stud adhesive.
*laughs* No, we didn’t use stud adhesive but maybe we should have. I’ll add more screws before starting!
Start with the first coat of mesh tape and hot mud, then apply two more coats. For joints, use a wider float since there’s no recessed area.
Hey , do you think it’s better to use mesh tape on the ceiling instead of paper?
Just like on the walls, make sure to pay attention to those butt joints to avoid any issues at the end of the job.
Thanks a lot, !