Rather unwisely, my tent has been left up almost constantly for the past 3 months. I had originally planned to buy a cheapo one that didn't need to last, but I never got around to it. So, is it likely to be permanently damaged by the constant UV exposure, or will a quick clean and re-proof see it good as new, if slightly faded? It's a siliconised (sp?) fly, and has faded quite a bit, but it's still completely waterproof and nothing seems to be out of order. Any ideas?