i put cardboard boxes up on the ceiling in the main part of the room with a mix of duct, packing and weatherproofing tape. i used a lot of duct tape, it turns out, because the wall is concrete and the joists are wood. i crammed insulation in the corners where i know the holes are and blocked a number of holes in the walls from the laundry to inside the walls of the house. this completely seals up the main room.
i did not seal anything in the water closet, and i left the corridor into the furnace open, for now.
i did this because i realized there are still smaller rodents running around in there. i didn't see anything and i've heard very little. even the evidence of droppings is very small. but it's enough. i think they're just staying out of there because it's not appealing to them anymore. there's no food. it's bright and clean. i legit kicked them out.
i want to block the entrances i think they're most likely to use but i also understand that cardboard and duct tape is not going to keep a rat out. bright light and no access to food will. so, i want to keep an eye on it further. i don't want them hiding food from the upstairs kitchen downstairs; my laundry is not their burrow. i don't want them running into the laundry from the upstairs bathroom. i don't want them coming in from the backyard.
i will seal the furnace room itself but i think i want to keep access between the furnace and the laundry open and i want to observe a lit bit more before i seal up the water closet, if i do.
the laundry should essentially be spotless, now. if it isn't, where is the filth coming from?
i am probably going to avoid the aluminum in the laundry because it'll be better applied elsewhere. i'm probably going to skip the bathroom, too. it's not a good idea to do this in the bathroom. i mean, it is if it's done properly, but if i make any mistake at all it could be a mess. it's not worth the risk of finding a rotting hole in the aluminum in a year or two.
it's a better idea to put the aluminum up in the kitchen.
so, i'm gong to need to finish up in there, do a secondary general clean, take another shower and then move back into the bedroom to focus on doing the cataloging and the coffee table book for a few days, before getting back to room 3 again, the kitchen. i'll post a video update for the laundry as well.
the big kitchen update is still to come and is the next big thing to do.