I just had a basement waterproofing job done and it is doing an awesome job relieving pressure and keeping the basement flood-free (we just had a very large amount of rain here in central PA and it was dry as a bone down there). The problem is, it is still very moist. We are talkin' 85% humidity. I used my moisture meter and the culprit is definitely the walls.
I am thinking of installing insulation board over the whole basement, as I have heard this will act as a moisture barrier. My concern is, there is still old drylok paint on the walls, and we just got the walls acid washed to get rid of the mold. Do I need to remove the paint before putting up the insulation board? Can I instead paint over it with a non-mold friendly paint first?? Will that be ok?
Also, I am open to hear other solutions for basement moisture issues.