Jacolantern

I live in a condominium and I noticed this just this morning. At first I thought it was just dust so i vacuumed it up, a few minutes later i saw it again. I then saw there is a small hole in the ceiling and I stood on a chair to take a closer look and realized it is falling from there.

Here are pics. Is there something eating at the structure in the ceiling?
http://i.imgur.com/WLnSS.jpg
http://i.imgur.com/sPVlK.jpg

Wuzzat?

Some chemical or animal or insect or liquid is disintegrating this material or maybe this is how it normally behaves at the end of its life.

nealtw

Do the hole go right thru? and welcome to the site.