My goal is to keep hot/cool air from seeping between floors. Is canned spray foam the way to go? Any recommendations? Pest resistance is a bonus.
You would want something like this. The important part is that it comes in two pieces so you can install it without having to disconnect anything to pass it through. The brushes are to resist airflow, but they are obviously not going to be airtight or pest resistant. For that, I would use expanding foam insulation. Those cables and pipes aren’t going anywhere, and if you absolutely had to replace one, removing the sprayfoam is a trivial effort compared to the rest of the job.
If you’re worried about pests, put some steel wool in there as well.
Mice will just chew through spray foam
What ever you do, don’t do what I did.
Are those water lines? The off-white one looks like an electric cable, which I don’t like (potential for it to rub against the edge of the hole and wear the insulator).
Looks like refrigerant lines to an A/C system to me. Cold line is covered in insulation and hot line is bare. White cable could be power to the unit.
Buy a 3D printer to make a custom cover. 2 years later you’ll be too busy maintaining (“upgrading”) your printer that you’ll forget why you got it in the first place.
Expanding spray foam.
Don’t do that, there’s wires and pipes in there. If anything needs maintenance or replacing it’s a nightmare with expanding foam gluing everything together.
Just put in some steel mesh on the bottom, fill with isolation materials, lock it in with more steel mesh and put a nice cover plate over it.
Also a huge fire hazard, don’t do this.
1993 Geo Metro
Needs moar asbestos and lead.
Stepbrother.
Old socks and unused cheesecake. I think.
I may be wrong.
