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marijuana grow warehouse design

Marijuana grow warehouse design

For example, undersizing the environmental controls is an error that’s almost impossible to overcome. HVAC systems need to have redundancy, backup power, be cleanable outside plant rooms, and be easy to repair. They must be sized properly to remove the massive amounts of moisture created by plant growth. Air circulation must be sufficient to keep all plants swaying in an artificial breeze, and also to keep the upper level flower canopy (in a vertical grow) from getting too hot. The environmental controls, when done correctly, can cost between $200-$250 per square foot as a capital expense, including engineering and installation. The reason it’s worth the money is because failures and inconsistencies in environmental controls are the #2 cause of crop loss. (The #1 cause is acquiring pests from clones brought from other facilities.)

Let’s dig into the grow facility planning process, and all of the major considerations you’ll need to maneuver.

Other contractors that some projects need:

An Environmental Engineer

As a project developer, first be aware that ground-up construction will significantly delay the start of cultivation project over leasing a pre-zoned cultivation warehouse or building space. The clients I’ve had who have pursued ground-up construction get bogged down full time for an average of 2-3 years working their way through the permitting and compliance processes. They have often spent over $3 million before breaking ground. If the investors have deep pockets and a lot of patience, then no problem, but usually this delay is a source of major frustration for those involved.

Marijuana grow warehouse design

A proper indoor grow facility is much more than just a bunch of hanging grow lights, which themselves can be heavy and bulky. You need to figure out if the structure you’re in — the warehouse or building — can support a smaller structure. In many cases, growers run out of space and start using the ceiling for storage so you want to ensure adequate room.

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According to Zambeza, a supplier of cannabis seeds, “Airflow within the growing environment helps to mimic outdoor and natural conditions, and serves many purposes, even helping to protect precious plants against external threats.” Methods include using oscillating fans, air exhaust systems, positive air pressure, High Efficiency Particulate Air (HEPA) filtration, or other filtration methods.

6 Considerations for Optimal Commercial Grow Room Design Plans

It might be hard to picture your facility in 5 or 10 years, but if you think expanding might be in the cards, it’s important to keep this in mind as you build your structure. When in doubt, consult with the architectural and engineering experts who can guide you in the right design and layout direction.

Marijuana grow warehouse design

A craft grower is a facility that is licensed by the Department of Agriculture to cultivate, dry, cure, and package hemp or marijuana. They each have their own commercial marijuana grow room design plans but for licensing as a craft grow, they must contain at least 5,000 square feet of canopy space for the cannabis plants during the flowering stage of their life cycle. The Department of Agriculture can authorize either an increase or decrease of space for the flowering cultivation stage which occurs in increments of 3,000 square feet depending on the market need, the craft grow house design capacity, and the history of the licensee’s compliance or noncompliant issues. The maximum set forth is 14,000 square feet for cultivation when the plants enter their flowering stage. However, the commercial grow room design plan laid forth by the USDA encompasses all the growth stages of the cannabis plant which drives home the importance of them being secured and enclosed in an indoor cultivation facility design.

The Typical Craft Grow Facility — Room Division

At Mintropy, our engineers will consider the following for your craft grow facility design:

HVAC of the Cannabis Grow Facility Design

In the past, 1,000 tons of refrigeration capacity was needed for 80,000 to 10,000 square foot facilities such as a data center, hospital, or school. A grow room requires similar, but they are dramatically different. A grow room has a much higher latent load (moisture/dehumidification load). The humidity in the grow space must undergo more cooling to effectively condense the humidity off the cooling coil. A much colder chilled water temperature is needed. When growing cannabis, the lights-out mode means that growers must dry the air and then reheat it, so the grow room does not start to over-cool. The reheat can use free energy obtained from the dehumidification process when the right HVAC system is used. Having an experienced company, such as Mintropy, handle such key specifics is necessary for the success of any commercial cannabis grow facility.