Can Anyone Grow Cannabis?

Commercial Cannabis Grow Op Setup

Greenhouse Dehumidifier

Did you know – A greenhouse dehumidification system plays a vital role in helping create the optimal climate for indoor cannabis growing. Read below for the different humidity control systems we offer and what each is used for.

In an endeavour to create the optimal environment, indoor agriculture can encounter certain challenges in climate regulation including humidity levels.

Cannabis Cultivation Facility Design

growing cannabis in Australia

As the Medical Cannabis industry grows in Australia and the world, it is important to understand how humidity can affect cannabis as it is extremely sensitive to humidity.

Growing Cannabis in Humid Australia can lead to bud rot

It is susceptible to a variety of humidity-related diseases such as botrytis, downy mildew and Alternaria.

Treating humidity in the growing and drying spaces with a dehumidifier for cannabis is the most efficient method to eliminate diseases.

A number of factors play a role in controlling humidity:

  • Room temperature

  • Room size

  • Number of plants

  • Air circulation

But, ultimately, nearly every indoor grower, no matter how small or large the application, is going to need a dehumidifier or humidifier to achieve indoor air quality.

  • In a greenhouse or a closed facility, plants constantly transpire water, increasing humidity. If left unchecked relative humidity will quickly increase.

  • The dew point is reached once water vapour saturates the air. Water starts to condense on the cooler surfaces, including the plants and inside the buds. This condensation leads to the development of fungal pathogens, which leads to the spread of disease and bud rot.

Stages of Bud Growth

Throughout each process in the cannabis lifecycle, humidity control is required to maintain optimal growth and drying conditions and dehumidifiers will improve grow quality, increase dry weight mass, and encourage the manufacture of compounds. 

The relative humidity (RH) that is best for cannabis plants varies over the course of their lifecycle. RH levels should be changed during different cycles to optimise growth and health. RH levels also vary depending on the plant’s heritage.

Relative humidity levels are different for each stage of cannabis bud growth

Learn more in our Growing Cannabis Brochure >

There are two common types of dehumidifiers that can be applied.

Desiccant Dehumidifier:

A desiccant dehumidifier uses rotors. These rotors help keep a consistent level of humidity, removing water from the air through double air flow via a large wheel mostly composed of active silica gel, which is tremendously effective at adsorbing moisture. 

Refrigerant (Mechanical) Dehumidifiers:

In comparison, mechanical dehumidifiers work in a similar way to a refrigerator. They usually work by drawing moist air over a refrigerated coil with a fan. The cold evaporator coil of the refrigeration device condenses the water, which is removed, and then the air is reheated by the condenser coil. The now dehumidified, warm air is released into the room

Comparing Performance:

The main benefit of a desiccant dehumidifier is that it performs exceptionally well when used in cooler temperatures, or when a low dew point is required. As there is no actual water produced during the process, these units can work effectively at sub-zero temperatures.  The main industries that profit from this technology is food, chemical and pharmaceutical laboratories, automotive and marine storage and restoration, bridge restoration and paper and photographic storage.

In comparison, Mechanical (refrigerant) type units are more economical at higher temperatures i.e., 30 degrees C. They are also particularly useful in the early stage of flood restorations. 

At Humiscope we take all things into consideration when planning the design and installation of your dehumidifier. For example, room temperature, size, number of plants and how much you water.

Our dehumidifiers will regulate humidity and prevent plants from mildew and fungi which occurs due to high moisture content and high temperatures in the greenhouse.

Humiscope also build custom design turnkey climate controlled rooms and convert existing spaces into properly sealed and ducted controlled environment spaces.

If you want to know more or have any questions, contact Humiscope and either I or one of our techs or engineers would love to have a chat. Contact Us here or call 1300 686 822