I did learn that if one uses an inflated double layer, to not double the poly that rolls up. It doesn't get inflated, so it rubs against itself and turns cloudy.
I'm coming into year 5 for my 3-5 year rated greenhouse poly in my first structure. I'm hoping to get through one more year. The weak part of the plastic is where it was heat-seamed at the factory. Those seams are the first part to go.
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