I built a new redwood deck three years ago. The redwood was professionally finished before installation.There is a portion of it that is uncovered. I am running out of weather to get it refinished this year. The uncovered portion is aging very quickly. I intend to sand all of it and refinish it in the spring. My question is would it be a good idea to put Thompson’s water seal on the exposed portion of the deck to limit the damage this winter will do. My thought is that since I am going to be re-sanding the entire thing it won’t be an issue. But I don’t want to put anything on there that will make it more difficult to refinish in the spring. Any advice is appreciated.