For context, this is leading to my AC unit. While hanging a light above my workbench, I noticed daylight coming in from the wall where there shouldn’t be any. It appears a previous owner had pulled back the insulation and forgot to put it back - shudder to think how much money that’s costed me over the last two years. Would like a hardier seal than insulation to stop water and mice, but not sure what is required.
It’s super awkward but I can get to it from inside the house (between insulation and hole). Going to have to move my workbench but so be it.
Any direction on the type/brand of foam I should use? I have a can of fireblock to seal ethernet runs from my basement to main floor, though it’s probably seized up by now.
I would use fire block since normal expanding foam is flammable. If I could get behind it, I would see if the hole was excessively large and if so, cut a piece of OSB to fit the space with a hole the correct size in it. Then I would bisect the piece of OSB (making sure to bisect the hole) so that I would be able to get it around the cables and refrigerant line. If the hole isn’t excessively large, fire stop caulk the penetration and insulate the best you can.
I’d pack some stainless steel wool around it before doing the expanding foam. This will prevent rodents from chewing through it, which they can do to the foam.
They make rodent-blocking foam but I trust the steel wool more
For context, this is leading to my AC unit. While hanging a light above my workbench, I noticed daylight coming in from the wall where there shouldn’t be any. It appears a previous owner had pulled back the insulation and forgot to put it back - shudder to think how much money that’s costed me over the last two years. Would like a hardier seal than insulation to stop water and mice, but not sure what is required.
Really depends on access. Can goy access it from the backside? Quick and easy, but a little messy, expanding foam.
Okay, I know that’s a typo, but I’m cracking up at the idea of you asking about unauthorized access by Jewish people.
Might be onto something, I’ve been finding delicious brisket sandwiches outside my house. Even found a knish the other day.
Pretty sure goy means not Jewish :)
You telling me these brisket sandwiches I’ve been finding outside are actually counterfeit corned beef and pastrami?
The most plausible explanation!
TIL that I’m Jewish. Not editing the comment, it must stay imperfectly intact.
It’s super awkward but I can get to it from inside the house (between insulation and hole). Going to have to move my workbench but so be it.
Any direction on the type/brand of foam I should use? I have a can of fireblock to seal ethernet runs from my basement to main floor, though it’s probably seized up by now.
I would use fire block since normal expanding foam is flammable. If I could get behind it, I would see if the hole was excessively large and if so, cut a piece of OSB to fit the space with a hole the correct size in it. Then I would bisect the piece of OSB (making sure to bisect the hole) so that I would be able to get it around the cables and refrigerant line. If the hole isn’t excessively large, fire stop caulk the penetration and insulate the best you can.
I’d pack some stainless steel wool around it before doing the expanding foam. This will prevent rodents from chewing through it, which they can do to the foam.
They make rodent-blocking foam but I trust the steel wool more
Weighing in to emphasize the importance of packing it with steel wool before using fireblock. It’s a game changer.
We had a hole like that that mice kept coming through and steel wool + foam ended that problem.