How to Fix Drywall Tape Joints that Have Cracked ...
Step 1: Remove Old Tape. Drywall tape that is typically used isn't as flexible as mesh drywall tape. It is best to remove all of the old tape and start fresh. Cut the tape and pull it off the joint. Remove all of it, even the part that isn't cracking. Do this for all the tape. Step 2: Replacing the Tape