Revisions log for question
How do I get rid of mold on the basement windows after screeding?

The screed was laid this week. The basement windows were supposedly closed. On Friday, I was able to enter the building again and opened the skylights on the top floor to ventilate. On Saturday, I also opened the basement windows and noticed that there was black and green mold all over the plastered trim.

Normal? Is it bad? Very bad? What to do?

• basement
• mold