Will paint protect wood from moisture?

[Karl Loeblein]

If you’re going to paint it white then consider using a white vinyl trim board from most decent size hardware stores. Waterproof and it won’t needed painting.

[Maurice Mcmurry]

I think I am being punished for being critical of paints ability to waterproof. My day job this week is removing vinyl siding, black fiber board and hundreds of roofing nails from a garage built in the 1950s. I get to restore the original masonite siding. Scraping, puttying, sanding, some epoxy repairs, two coats of alkyd primer and two coats of acrylic deck and siding solid color stain.