Crawl Space Insulation - Falling Insulation
The Fiberglass insulation looks like it is dripping from the ceiling. This is a result of moisture damaging the material. As it gets wet, fiberglass becomes less effective as an insulator. The moisture degrades the material causing the fibers to separate from one another. The added weight of the moisture causes the batts to sag and eventually fall to the ground. Even the metal rods holding the insulation up rusts and eventually breaks due to the moisture.