Spider "Soot Webs"
In this room, a lot of "soot webs" commonly mistaken for spider webs inhabited several inches of door frames and corners. And, according to ACAC.org --"electrostatic bonding causes fire particles to pair to ceiling and corner spaces."
When these "soot webs" take hold in a facility, it takes special care to clean them. The extent of the soot webs only reached as far as the source room, where the majority of the damage incurred. The rest of the damage reached the whole facility but it was seen more in the ceiling or ductwork of the building above the drop ceilings.
That's why after fire damage you may see these types of "spider-webs" in areas beyond where the fire actually started.