Careful with the clear stuff - it really heats up, even on cold days - we're going with the white 6mm stuff that has good light penetration - less overheating, less mold/mildewy problems with the plants (less chance of roasting them too). There is a clear tape with a waffly texture that my friend uses before he staples the plastic to his frame. It enables him to pull the duct tape width tape like a giant bandaid when he wants to pull the staples & open his hoophouses. Staples come out cleanly w/o tearing covering - he does it for ease, I'll be doing it to extend the life of the covering. He also runs external strapping every 4 feet to minimize flapping of the covering.
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