CONTROL YOUR GROW
“
Greenhouses take advantage
of the daily photons available and
the spectrum of the sun.”
GREENHOUSES
Depending on the amount of technology
in the greenhouse, there can be great
variance in production quality. This is
usually due to the greenhouse effect and
low insulation ratings that greatly test the
building’s ability to maintain an artificial
environment. For this reason, some consider
greenhouses to be more like outdoor
agriculture, but given the correct level of
sophistication, greenhouses can outperform
many indoor gardens.
Although most greenhouses use the
method of exchanging air from the outside
world and moving it throughout the
greenhouse, there are other technologies,
such as positive pressure or enclosed
greenhouses, in which air is not simply
moved through the greenhouse, but rather
captured and recaptured while being
manipulated and controlled using various
equipment and technologies.
Most greenhouses use the former. As
the air is pulled through the greenhouse,
heat is removed in the process. As heat is
removed, so is CO2 and humidity. In drier
climates, greenhouses can easily be cooled
by pulling air across saturated sponge-like
pads on one end and with exhaust fans on
the other. Another cooling method utilizing
the evaporative cooling effect is highpressure misting in which the tiny fog-like
droplets evaporate as they are moved
throughout the greenhouse.
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Maximum Yield USA | January 2017