Hi Paul,
I'm wondering how this turned out for you now that some time has passed? Did the mildew try to return at all?
My little trailer was *covered* in mildew on the exterior, walls, rock guard, roof, everywhere! I used some Tilex type bathroom cleaner and elbow grease on parts of it this past weekend and it seemed to be doing a good job, but now that it's been a bit rainy out the mildew seems to have returned some.
Thanks