I live in an northern Ontario and question is in reference to insulation. The top 4 ft portion of an 8ft concrete basement wall has been wood framed and filled with fiberglass bat insulation. The lower portion of the concrete wall is bare.
There appears to be mold covering most of the insulation and signs of staining running down the walls from where the insulated portion is present.
Behind the insulation is what appears to be tar paper which is against the concrete wall. The moisture content is also quite high.
So what we have is open to air fiberglass insulation which is on top of tarpaper which is against the concrete wall. Most of the insulation has turned some form of dark discoloration.