Cannabis Grow Room Ventilation: Making Sure Your Plants Can Breathe

By Mathhew Paul On Aug 20, 2022

There are a few critical components to consider while setting up a cannabis facility. First and foremost is making sure your grow tent has adequate ventilation to allow for adequate airflow for your weed plants.

In order to learn what equipment is needed and how to construct an effective grow tent ventilation system, please continue reading this tutorial. We also address some of the most frequently asked questions and cover a variety of layout options. Ok, so let’s begin.

Why It’s Crucial to Have Proper Ventilation in A Grow Tent

Those that start their marijuana plants in the great outdoors appreciate the benefits of a more natural environment. A cannabis plant’s life cycle is influenced by the presence or absence of wind, rain, and sunlight. If farmers prefer to set up shop in a tent within their house, they must supply all of the necessary equipment and supplies themselves.

To provide a grow tent with the necessary ventilation, an air extractor and fan must be installed. Here are some ways in which you may help your cannabis plant thrive.

To Avoid Sickness and Pests

Familiarity breeds contempt, and so does stale air. All of your hard work will be ruined since it fosters the growth of mold and mildew. Additionally, gnats and spider mites will flourish in the rising humidity, further diminishing your crop’s health.

To protect your marijuana seedlings from a harsh environment, consider investing in a grow tent ventilation kit. The top layer of soil is dried out by the fans, making it difficult for pests to lay their eggs there.

Ideal Heat and Temperature

As with outdoor sunlight, artificial indoor lighting is critical for the proper development of a cannabis plant. Both of these types of illumination raise the ambient temperature by warming the air around them. Ventilation in a grow tent mimics the effects of wind by keeping the air at a consistent temperature.

Some lights don’t put out as much heat as regular bulbs, yet even those might still damage your crop. This is avoided by the use of fans, and the resulting airflow allows you to better regulate the temperature within your grow tent.

Co2 Level Regulation

Inhaling carbon dioxide and exhaling oxygen, your marijuana plants live and breathe during the day. Similar to the way the human respiratory system works, this phenomenon shifts positions during the night. These essential gases are diminished when an indoor environment is hermetically enclosed.

Your marijuana plants will thrive in a well-ventilated grow tent since it draws in the fresh air and expels stale air.

The Sturdiness of Plants and Stems

The stems of your weed plants can bend or break under the weight of their ripening buds. Trellis netting can assist with this weighty burden, but your crop should be robust enough to shoulder the bulk of it on its own.

A light breeze is what your cannabis plants need to strengthen their stems, and a well-ventilated grow tent may simulate this effect.

Reducing Exposure to Wind Stress

However, while the wind is important for the growth of your cannabis plants, too much of it might be detrimental. By providing an outlet for the air from your fans, you can prevent damage to your harvest.

The plant’s output can be negatively affected if the grow tent’s ventilation fans are set to blow too strongly. Too much airflow can be detected by the presence of wind-burned leaves, which have a claw-like appearance.

Eliminating Odors

Reduced noxious odors in the house is yet another advantage of using a grow tent with proper ventilation. There are times when the odor of ripening cannabis is so strong that it makes it impossible to keep your crop hidden from curious onlookers.

Ventilation allows you to control these odours, eliminating them discreetly and retaining that fresh smell in your property.

Estimating Ventilation Needs for a Grow Tent

No matter how large or tiny your grow tent is, you’ll need a ventilation system with the appropriate-sized fans. Even though each location is unique, a basic calculator can help you get started in the correct direction.

Multiplying the dimensions (width x height x length) of your grow space will give you the cubic feet of space it has. To illustrate, imagine you had a greenhouse of 3 x 5 x 4 feet.

Size in feet: 4 by 3 by 5 equals 60 feet cubed.

You can now look for exhaust fans that produce at least 60 cubic feet per minute (CFM) when you have the volume (cubic feet per minute). This way, you can rest assured that your marijuana plants will always have fresh air in their grow tent.

Common Methods of Supplying Airflow to A Greenhouse or Grow Tent

There are a number of ways to organize your greenhouse to maximize the available area. This helpful graphic of a grow tent’s airflow demonstrates the most common techniques.

Selecting an Appropriate Exhaust Fan

Exhaust systems should be installed in any indoor setup, regardless of its size. Doing so allows the stale air to exit and makes place for the incoming, revitalising air.

Three of the most important criteria to use while deciding on an exhaust system for your grow tent’s ventilation are listed below.

Calculate the grow tent’s cube.
Take into account how productive your proposed route is.
Choose between a booster fan and an inline exhaust fan.

Once you know the greenhouse’s volume, you can figure out how much energy your fan extractor will need to run efficiently.

Consider your tubing’s efficiency next. A long, winding road that does not straighten out is not very effective in releasing gases quickly. While a well-designed system uses just straight, short pipes to speed up the air’s escape.