Mine has held up to heavy snow loads, high winds, hail, and heat perfectly. As I've said before, for us the key is not having any structural components - no framing, no bracing. So there is no wind resistance at all, it can flex freely as it needs to. We regularly see winds, any time of year, up to and sometimes in excess of 60mph. We even had an officially recorded gust of 90mph in January of this year and it stood strongly. As for heat buildup, we use landscape fabric so there is shade while air flows right through it. Except for adding another panel a couple of years ago to expand the size, we haven't had to touch it since it was put up in 2014. Not one repair or tweak.