I have the PENTHOUSE that i used last year and i purposely left it set up in the woods here in central MINNESOTA because i wanted to see just how durable it really was.Well,i went out a couple weeks ago and it's still just fine!This is after about 60" of snowfall and some severe weather--it passed the test in my mindThe only thing noticeable is the one side that was facing the south was faded to a more reddish color from the brown that it was when i bought it--i'll give it a thumbs up!