u/johnqhu

I bought a old town house, which was build in 1970s. The ceiling of the main floor was damaged by water leak from upstairs. I removed the damaged ceiling dry wall panels to replace with new ones and was shocked by what I saw. There were no joist hangers used to attach the joist to the beam. And the joists are already begin to drop. One end of the joists are attached to the two house wall between two units and the other end are only nailed or screwed to the beam.

https://imgur.com/UbxS65K

Can I fix it by adding hangers now?