I am tearing up the floor and opening the subfloor in my house where it has been determined that there are chlorinated solvents in the indoor air.
The beam at the bottom of the outer wall that holds the floor joists is treated with something brown. I suspect it might be a culprit for the experienced problems.
Replacing it is not possible, but how can I minimize its harm? Could barrier paint be an alternative, or does it risk creating other problems?