In a recently purchased home there are feature walls in all of the bedrooms. I want to paint over with same color as other 3 walls. My question is there was enamel paint on feature wall, I have covered with KILZ enamel. I want to apply texture over Kilz, will

I’m trying to cover red water based paint on my fence. The fence is located behind my garage, so power washing isn’t an option. Can anyone recommend a paint type that will guarantee coverage?