I read some articles about "how to paint window frame" and "how to paint a room". None of them explain whether it's okay to paint over existing paint.
Currently my wooden window frame looks like it's taken a beaten. There are areas/patches where it appears to be moisture damage. Am not sure whether the paint is crisping/cracking away... or whether those black areas are mold /mildew (from trapped moisture). Anyway I like to sort it out. Would I need to scrap away the existing cracked/crispy white paint? Then apply some mildew/mold resistant application? Then paint using mildew/mold/water-proof paint (like bath paint)? Would that do the trick?