There is a spectrum between an open field and a fully closed plant factory. The right point on it is the one your crop, climate, and team can actually sustain.
More control means more capital and more operating skill. The best system is the simplest one that reliably delivers the climate your crop needs.
Here the problem is getting heat and moisture out, not holding them in. That single difference reshapes ventilation, screening, and the control strategy.
You cannot manage a climate you cannot see. Sensing and logging are not an upgrade to add later, they are how the system gets tuned.
A greenhouse is a skill, not a purchase. The facilities that succeed are the ones whose people know why the setpoints are what they are.
Bring us the crop, the site, and the goal. We will tell you what a controlled environment can realistically deliver.