WME (wood moisture equivalent) has been hovering both above and below 20% in a few joists during the past few months, while other joists seem to be doing better. The elevated grey line is the sensor in the brick sleeper wall, which is now behind the plastic covering the crawl space wall – so this brick wall is back to its original level (don’t know why it reduced after the walls were tanked). For more on what solution was used to reduce evaporation from the crawl space walls, click here.