|
Mr. Maynard
You need to ensure that the cfm
capabilities of the fans is greater than the possible inflow of air from all
vents combined. You need to try and create a negative pressure
environment.
- If the door is hard to pull
open when the fans are running, you should be fine...
Also , would it be possible to put the
roof vents on springs, so that the suction from the fans can pull them
closed?
I am
appreciative of the replies to my query, and have a further, though
simple, question which is puzzling me. Perhaps I'm missing something really basic here, but I do plan to have solar powered peak vents, which, as I am making them myself (not the openers, just the vents) will surely leak like sieves. I have decided the practicality of having a large exhaust fan on the roof is offset by the difficulty and will probably go the standard route of vents and fans on opposite ends of the GH at bench height (maybe a few vents at floor level too). My question is this: when the fans kick on, as the peak vents will already be open, am I not just pulling air through them down into the GH and not from the opposing bench level vents which are further away, depriving the plants at that end needed circulation and cooling? Tennis Maynard |
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