roof rat exclusion

https://mill-wiki.win/index.php/How_to_Seal_Gaps_to_Stop_Mice_From_Entering_Your_Home

roof rat exclusion means sealing every gap larger than a quarter inch around your home, especially where utility lines enter, rooflines meet, and vents or soffits sit. These agile climbers can squeeze through tiny openings, so you need steel mesh, caulk, and proper siding repairs. Start from the roofline down; trim tree branches away from the house since rats use them as highways. It's tedious but permanent — once they're locked out, they'll move on.