Hello to all. I bought my first home a few months ago and i havent stopped improving since. So far half the basement I have cleaned and dryloked (awesome stuff) and wow what a difference in moisture. The other side of the basement tho has like a green fiber like mortar on it that I cant figure out. Is it an old school moisture thing?( house built in early 50's) do I need to tear it down for drylok or do I need to drylok at all? Thanks!