insulation damage from rats 3

https://wiki-triod.win/index.php/Why_Crawlspace_Vent_Repair_Matters_for_Keeping_Rodents_Out

Rats chewed through the attic insulation, leaving shredded pieces all over the place and creating gaps where cold air sneaks in now. The damage was worse than I expected — they had flattened pathways through the fiberglass, and the smell of urine was strong. I’m patching it up before winter really hits, but I already know my heating bill’s going up because of their nest.