I had a Rhino Deck installed approx. 2 years ago. It has warped and stained. I have terrible mildew stains on the top deck that is exposed to the sun. The rep for Rhino came and evaluated the problem. His answer was to treat the deck with a composite treatment solution. I felt this was not a satisfactory answer, since the entire reason I invested significantly more money in this deck, was because of the supposed low maintenance. He advised me that what has happened with my deck happens fairly commonly with Rhino decking. Furthermore, there would be no refund or adjustment. I asked him if he would be ok with posting a picture of the deck, on their website, as representation of what a two year old Rhino Deck can become. His flat answer was no. My builder is so frustrated with Rhino that he refuses to use them ever again. Is the composite cleaner my only answer?