Tackled some of this job today. Had a full can of foam insulation here left over from adding on to the house so I only picked up 1 can at Home Depot.
Went to use the can I had, never opened, and nothing. Actually the nozzle broke off also. Looked at the date on can, 2008. Guess nothing last forever ! Anyways I ran out so still need to pick up another.
So I used the foam, added layers of steel wool and then more foam over it. Should work out good.
The top layer doesn't look pretty, stuff is tough to work coming out of the can. Once it dry's good I'll take a blade, shave it down then hit it with some spray paint.
Also noticed about a 2 1/2" hole in the basement ceiling that I'm thinking maybe for heat. Anyone notice that before ?