If you have a water problem with latex paint it is most often on
horizontal surfaces where water and snow have been sitting -puddeling,
latex when used for the right puropse is superior to oil as in houses
that expand and contract. I just would not use latex on floors or decks
if I had a choise. Sitting water-snow will affect it, oil stain dries
slower and can penetrate better. But a hot surface aplication is worse
for latex than oil, hot surface aplication will kill latex longevity