Q: As I was getting ready to take a shower, I looked up and noticed black splotches on my bathroom ceiling. What causes mold on bathroom ceiling surfaces, and what can I do to get rid of mold on the ...

You’re walking around your home when you suddenly spot something on the ceiling. You can’t quite make out what it is, so you squint and move closer — uh oh, is that mold? If it is, you're like most of ...