Front Dining Room Ceiling
This picture shows the ceiling joists that were sagging
under the weight of the water "pond" on the roof. The contractor
jacked these joists back to near their original position and spliced them
with new treated 2x8s so that the roof could be repaired.

When the old sheetrock fell, it damaged the air duct. This
needs repairing. There is also some damage to the metal straps that hold
the ceiling tiles that will require replacing.
The damaged sheetrock in the ceiling was replaced with
insulation boards. I was surprised to find that there is no
insulation in this part (front) of the ceiling. When David added the
ceiling tiles he could have added insulation. On the other hand, he
may have thought that the existing ceiling contained insulation.
Back Dining Room Ceiling
Norris thinks that this part to the ceiling just gave way
and fell due in part to age and fatigue of the old sheetrock, which was
attached to the ceiling joists.

Here the ceiling did contain insulation between the
joists, but it was dry so they returned it to the ceiling. They will
have to paint this part of the ceiling.
The Roof
They drained the water from the roof, and made the repair
by building the roof up to level with tar and gravel. I didn't get
any pictures. The ladder was gone at the time I got there.