Hello new to this forum! But I've been stalking for a while. I finally have a question that I have not found an answer to. I have a 2006 Jay series pop up and within the last year the roof has discolored and yellowed. Is there anything I can use to bring it back to a whiter state? I've heard of awesome yellow (I'll be getting this tonight) but nothing else. I was thinking of oxiclean ....but not sure. Any tips would be great thanks. I'm assuming this is caused by oxidation which is odd because the pop is kept in a covered carport in the back yard. However, my crappy neighbor blows find Florida sand through the fence and this last time I pulled it out it was absolutely covered in it; wondering if that's the reason.