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Old April 26, 2019   #7
svalli's Avatar
Join Date: Feb 2006
Location: Vaasa, Finland, latitude N 63°
Posts: 838

Originally Posted by MdTNGrdner View Post
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?
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.

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