How long has the drywall been installed? Is it fairly new? If the drywall is not failing due to moisture from a leak, it looks like it does not have the necessary number of screws or nails. Years ago when I worked for a drywall company, two guys would put the boards on the ceiling with just enough nails to hold it in place. Then someone else would come along and finish the nailing.
It also looks like the butt joints of the sheets are not breaking on a rafter. You probably need to go into the attic and add in nailing support for the butt joints.
As long as the boards are in good condition, you should be able to remove the loose tape, secure the boards to the rafters with screws and then refinish.
David
It also looks like the butt joints of the sheets are not breaking on a rafter. You probably need to go into the attic and add in nailing support for the butt joints.
As long as the boards are in good condition, you should be able to remove the loose tape, secure the boards to the rafters with screws and then refinish.
David