Hello,
We are very sorry to hear about this! Fabric life is affected by application, location and the physical elements the shelter is exposed to. All of our shelters include a minimum one year warranty and if your cover tears within that time period. Our covers are UV treated in the inside, outside and in between the triple layer woven polyethylene material. Our standard units come with a 9 oz. cover meant for temporary use and if you live in an area that gets more sun exposure than most or the cover receives sun exposure along with exposure to other elements such has strong winds or snow this will also have an effect on longevity.We also offer many replacement cover options, including heavier materials that may have longer warranties and life expectancies which might better suit your needs. If you have any other questions or concerns please feel free to call us at 1-800-932-9344.
Thank you