Quote:
Originally Posted by MdTNGrdner
I don't understand greenhouse construction, and am wondering why two of those panels have cross seams. Is it just how you had to cut it, or do they raise there for venting?
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The upper parts are the vents, which can be opened. There are automatic vent openers, which operate based on temperature. Mine did not operate anymore, so I need to get new ones. This greenhouse is so tall, that opening the vents manually is difficult.
Sari