Do I need exhaust fan? Roof vent entire length of roof.
I have a mini GH 9'Wx4'L. There is a roof vent over the entire 4' length of the roof, with a automatic solar opener. There is plenty of air circulation in the GH and I am putting a swamp cooler in there. There is a bottom side vent as well.
Question: do I need an extractor fan? Given that the roof vent is running the entire length, it is impossible for heat pockets to accumulate under the roof, and the fans provide plenty of circulation so stratification should also be eliminated. Do I miss something?
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