Wednesday night, about 2:30am something went bump in the night. I woke up thinking uh-oh, there is a 12 ga riot gun in the closet, but the ammo is in the basement. But all was quiet after that and I went back to sleep. When I got up at 4am (normal) I found this mess in the living room.
Turned out that the water drain pipe from the AC unit that is mounted in the attic had broken and flooded the ceiling till it gave way. Further investigation revealed that the AC was installed in 1988 and the type of PVC used then was susceptible to heat and would dry out and disintegrate. That is just what it did. The new PVC of today won't do this.
Stainmaster came and cleaned up the mess, the rockwool insulation pile was soaked and stained the carpet black so the carpet is removed. A large section of ceiling is removed to make repairs easier. The original, 1960, ceiling is sheetrock covered with metal lath and plaster.
The picture shows a small amount of this large room, all the furniture is going to have to come out for new flooring, the furniture needs shampooing, the curtains and drapes need cleaning. Everything was covered in rockwool dust making it hard to breath for over a day, even with a large exhaust fan running.
Now I am waiting for the Insurance company to get back to me.