what's the best exterior paint for a front porch ceiling?
We painted our house white with Farrel-Calhoun paint (low gloss) about 5 years ago. We live about an hour south of Memphis so yes, much humidity here in the summers. The ceiling of the front porch (painted plywood) now has mildew streaks in it that I can't seem to get out. They put a mildewcide in the paint when we last painted (wasn't much help obviously). I want to clean it up and re-paint it so I'm looking for suggestions as to how to:
1. get rid of the mildew and
2. should we use a primer and if so, which one?
3. which would be the best paint to use for this application?
The porch faces the south and there are gutters all around it.