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At 2:30 p.m., the crop looked stressed even though the thermostat said the house was on setpoint. Leaf curl along the west sidewall, humidity hanging high at canopy level, and stagnant zones near the ridge told the real story. This greenhouse ventilation retrofit case study is a useful example of what happens when installed equipment technically runs, but the air distribution strategy no longer matches the heat load, crop density, and static pressure in the building. The project involved a mid-s …

A greenhouse that runs hot at the ridge, humid in the corners, and stagnant under the canopy rarely has a crop problem first. It usually has an air movement problem. That is why a practical greenhouse airflow design example matters. It turns vague goals like “better ventilation” into fan capacity, intake area, airspeed, and control strategy you can actually build. For growers, contractors, and engineers, airflow design is not just about adding exhaust fans until the space feels coole …