The drywall in the house was hung vertically and with the flooding we gutted the walls to 4 feet (new open concept floorplan :P). For the most part everything worked okay but in 2 areas we have a situation where the vertical tape pulled off the upper sheet a bit when taking the bottom section out.
Think two boards together vertically and you chop the bottom 4 feet off of both of them and the tape between them has come off a bit or loosened.
Do you put some mud behind and re-seat the tape (its fiberglass) or do you yank the bugger off and retape the whole top bits. Fine either way just want to know what the correct fix is.