If the material is not UV stabilized it will yellow and get brittle in fairly short order. The commercial grade plastic for hoop houses may be a better choice. We have had a mild winter to be sure but the material we used is holding up well. Below is a picture of our tunnel. It is a row cover we started out with and then clear plastic from Johnny's Seeds over the top. It has been out about 3 months now.
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George
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"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is it’s natural manure."
Thomas Jefferson, 1787
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