Had this call a while back. a good portion of the living room ceiling collapsed causing a huge mess.
It is interesting to note that we were suffering an extreme heat wave at the time of this disaster. The only things we noted were seriously warped ceiling joist with sheetrock nails popping through the plaster. This was probably aggravated due to the house standing without proper insulation for many years. The house has gone through upgrades over the years, but not before the damage from years back had taken it’s toll.
It is a common problem to see this in garages, because many are not insulated.
If you ever see nail holes appearing in a ceiling or can detect bowing and warping in a ceiling, do not delay in checking out what the cause of the problem is.
As you can see in the picture, a disaster could have been avoided if the bowing had been noticed.
Extensive work had to be done, ceiling joist had to be cut out and replaced. Most of the sheetrock had to be replaced and re-textured.
It helps to notice the small tell-tale signs!!