How to fix a cracked ceiling corner

This time we have big family room with a four sided tray ceiling. The upper corner is cracking along whole one side of the ceiling. Usually corners with more or less than 90 degree are more likely to crack, because construction itself is less resistant against the houses small, insignificant moves, related with changes of temperature and humidity outside and inside the building, types of nails or screws used in construction process. In our case we have nails- you can see in this video after scraping the nail pop.

Step 1 Open a ceiling crack along the corner by using a 5 in one scraper. Before starting it we need to separate a good part of the corner from cracked part, because we will need to open and lift one side of corner bead and fill it with mud.

Step 2 Lift up one side of the vinyl corner bead and fill up under it with mud along the whole corner. Make sure that the whole area under the corner bead is full of mud. Put an extra screw by the nail and make sure you have found the ceiling  joist. For that purpose you can use stud finder to locate a joist. Patch a nail pop area. 

Step 3 After first layer of mud is completely dry we can scrape uneven parts of mud from the surface to make it as flat as possible. Before a second layer we can use a mesh tape along the corner if we are not sure that the mud properly bonded corner bead to the ceiling surface. In this case everything looks good, so we can skip this part ( we will need less time for putting extra layer of mud and save some time). Right now is time for the second layer of the the mud. 

Step 4 After second layer is completely dry we inspect the surface and decide if we need one more layer of mud for better quality surface. If it's enough we can start sanding process. We can use folded sandpaper or sanding sponge for better reach of the corner. 

Step 5 Prime sanded area with the primer or extra coat of ceiling paint and after primer is completely dry, paint the ceiling with a ceiling paint. 

Today is Saturday and after good work it is time to relax ☺.

Feel free to leave comments or ask some questions below this post. Thanks and have a wonderful weekend!