Painting over mildewed wooden exterior window
I have large double window in my DR that is covered with mildew from last summer. Note: no problems with interior.
I have NEVER seen anything like this! Late last summer, the humidity was so extremely high here in Eastern KY that the window mildewed. It is covered by a porch, and for some reason the hot, humid air seemed to just "trap" in that area if that makes sense. Temps were in the 90's for days at a time, and you could see the condensation totally covering the window. None of the other windows mildewed.
I need to repaint soon. Is there anything special I need to do before paint, i.e. special cleaning or special primer to prevent this mildew from bleeding through??