Defective or substandard material??
My Shelter Logic is a little over 1.5 years now and one panel started to disintegrate literally. You could see the different panels that make up the shelter and one was absolutely different from the rest, it was a coarser weave, different colour and when it started to tear it was like paper. The fine folks at ShelterLogic kindly told me the warranty was expired but they could sell me another cover. So they can use defective materials and hope they can get a year out of it and get away with it. I am terribly disappointed with the product and the company. No more for me.