After all of the texture was removed from the walls, it was time to assess the amount of water damage to the plaster. To do this, I just take a 5-in-1 painter’s tool and remove all of the soft plaster. You can usually tell if the plaster is bad behind the hard surface coat by tapping on it. if it sounds hollow, then it’s probably ruined.
After removing all of the loose plaster, the expanse of the water damage is easily evident.
The ceiling looks like it took the brunt of this leak.