 But once you get rid of that surface, what you want to do is to take steps to get more sunlight on that deck because if you get more sunlight on that deck, the moss won't be able to regrow. So you say you have partial sun. There's a way that you could say thin out some of the trees, not cut them down, but just get a little sunlight comes through a little bit more frequently than what you have right now. That is the easiest way to stop regrowing.