Updated at: 29-04-2022 - By: Sienna Lewis

You’ve come to the right site if you’re wondering how to build a marijuana greenhouse. Knowing, planning, measuring, building, and maintaining are all straightforward processes.

As long as it’s your first time, we’re here to aid you. Here are the instructions for building a cannabis greenhouse. In the meantime, let’s take a quick look at marijuana.

What are you waiting for to start your own marijuana farm?

Marijuana Plants

When you hear the word “marijuana,” what comes to mind? Is it a drug, a drug-producing plant, or something else? You’re most likely correct.

How to Build a Greenhouse for Cannabis Production - Greenhouse Product News

THC, a mind-altering molecule found in marijuana, is one of many compounds produced by the Cannabis indica or Cannabis sativa plants whose dried leaves, bulbs, roots, and seeds are referred to as “marijuana.”

Do you know that in the United States, it is the most widely prescribed psychotropic medication? Marijuana, though, isn’t all fun and games. It has been utilized in the medical industry as a drug in the past. However, some countries are still in the process of legalizing marijuana.

If you’re sick of having to buy one all the time, why not start your own? Make sure that your country allows you to grow one before you get started.

Make sure you’re ready to learn how to construct a marijuana greenhouse!

Steps In Building A Marijuana Greenhouse

Many farmers prefer a greenhouse to an indoor grow room because it is more comfortable and practical. There are several advantages to cultivating your plants indoors, such as access to natural light, but also protection from pests and other animals.

With these basic procedures, we can now learn how to build a marijuana greenhouse.

#1 Know your environment

A greenhouse’s environment will change over time. You need to know your surroundings before you start developing one.

Depending on where you live, you can expect a variety of weather conditions. You’ll need to keep your greenhouse chilly in some sections, so you’ll want to invest in an air conditioner.

Cold regions require warmth and heat to survive. Windy places can necessitate a more durable greenhouse.

#2 Plan, plan, plan

Every action you take has an end goal in mind. You can’t begin something if you don’t have a plan. Plan ahead to avoid wasting time, money, and effort.

From small, portable greenhouses to large, permanent additions to your home, there are many options for greenhouse construction and buying.

Take a step back and consider where you would like to put your greenhouse. There are a few things to keep in mind when choosing the location of your greenhouse.

Natural light, a shady spot, electricity, wind and rain protection, and a water drainage system are all things to keep in mind.

#3 Measure

You should also think about the size of your greenhouse when planning its construction. Your pot greenhouse will need somewhere between a few hundred and a few thousand square feet of space. Counting mature plants is an easy way to estimate how many you’ll have.

To guarantee that the plants have enough room to grow, it is vital to take measurements. Don’t make allowances for its rapid expansion; the more room you give it, the better.

Marijuana plants can be grown in greenhouses of any size. No matter which choice you prefer, constructing it yourself would be cheaper and better than hiring a professional to do it.

One plant’s area might serve as a starting point for measuring. Then divide by the number of plants you intend to grow. That way, everyone has a place to go!

#4 Knowledge about what you plant

It’s critical to know what you’ll be growing before you start planting. Cultivate a thorough understanding of your varieties. Don’t forget to study for the exam.

Increasing strains of high-CBD or high-THC, or the other way around In other words, are you farming types that are more prone to mildew, or does your natural environment favor fungus growth? Study up if you’re not sure!

Your greenhouse is ensuring that your plants are safe to grow. Legalities and permits may necessitate a review. To grow certain plants in your greenhouse, you’ll need a license.

Before you start planting, be sure you have all the necessary licenses. There is no way we want to spend the rest of our lives in prison. It’s better to be prepared than to be caught off guard.

#5 Build

Obviously, you’ll have to pay for it when you’re building something. Depending on the intricacy and size of your greenhouse, you may expect to pay between $300 and $400 dollars for the project. It will be much less expensive if you already have additional materials on hand.

To build a structure, you’ll need wood, PVC pipes for drainage, Rebar posts, and plastic sheeting for the coverings.

If you’re interested in learning how to build one, you can find detailed instructions here.

#6 Maintaining your greenhouse

In order to construct a functional greenhouse, one must not only construct the structure but also create a supportive ecology. The ventilation, temperature, and humidity in your greenhouse should all be adjustable.

To avoid mildew, it is essential to keep the air moving through your foundation. Ventilation systems can be installed in a variety of locations. Adding a ventilation system to your greenhouse is likely to improve the air flow.

Temperatures in your greenhouse can also be monitored by using thermometers. The plants will continue to flourish because you’ve made sure they’re in a cool, dry location.

To get an idea of how humid the air really is around you, a hygrometer is a handy tool. Healthy plant growth necessitates high levels of humidity.

Last but not least, make sure your plants are flourishing in a pest-free and healthy environment by keeping them clean.

Where to Grow Marijuana

It is normal for marijuana to thrive in warmer climates. However, in order to keep it profitable, greenhouses must be used regardless of location. Indoor farms that cultivate fruit and vegetables can’t compete with these greenhouses. They have innovative construction technologies that use steel structures to house climate-control systems. Proper illumination, for example, mimics the sun’s rays and takes use of the plants’ natural growth cycles.

Indoor microclimates are where high-yield crops are grown. A variety of disease and pest management techniques, as well as computerized watering and fertilizer delivery, go into making these products. It’s also a good idea to keep the person in custody in a secure location.

This high-tech and high-dollar effort has a remarkable return on investment. As a result of legalization, the marijuana sector is getting more acceptability from the public. In the “green-gold” movement, people from all walks of life are creating their own cannabis farms. A little closet inside their house or a cheap marijuana grow-house in their backyard could be the ideal location for this. An industrial-zoned farm may potentially be a big steel structure that stands alone.

It’s common knowledge among seasoned marijuana producers that the ideal way to construct a marijuana grow house is from the inside out. They begin with the goal in mind and choose their building materials and components accordingly.

This method of cultivating marijuana is quite straightforward. There is a need for a basic scientific understanding of the marijuana plant. In order to get the best flower buds, you must then suit your plants wants.

Cannabis plants, in their natural habitat, need water, nutrients, heat, humidity, and controlled lighting in order to thrive and proliferate.

Building a grow-house that can meet all of the needs of marijuana plants is essential. A well-thought-out strategy is the foundation of any successful marijuana cultivation facility. The plants require more light and room if the predicted yield is higher. With greater light comes an increase in temperature, and this necessitates cooling and ventilation systems to keep the heat at a safe level.

More systems are needed to operate a larger marijuana growing operation, which increases the overall cost. The following is a general guide to the construction of a marijuana grow-house, with this in mind

How to Build a Greenhouse for Cannabis Production - Greenhouse Product News

Marijuana Horticulture

Cannabidiol, also known as marijuana, is botanically known as Cannabis Sativa. For millennia, it has been grown in warmer areas, but it is also found in nature. It’s used largely for making textiles and other products. Cannabis has long been known for its intoxicating properties as well as its therapeutic advantages. It is only relatively recently, however, that mainstream American culture has come to accept marijuana.

THC, or tetrahydrocannabinol, and cannabinol oils are the active components in marijuana. THC, the active ingredient in marijuana, is responsible for both the euphoria and the therapeutic properties of the drug. Only female plants bear flowers, which is where the plant’s THC is found. In a marijuana grow home, male plants can be disastrous. THC production will be halted and the crop’s value will be lost as a result of pollination.

Cannabis plants have a predictable growth, bloom, and death cycle that can be regulated in a grow house environment.

Seeds can be used to start new plants, however clones are more commonly used in commercial and large-scale hobby grow-houses. Before being rooted in a solution, they are clipped from their mother plant. The roots of the plants are submerged in nutrient-rich water in a hydroponic system or a growing medium once they have grown strong.

The vegetation stage is the following stage in the life of a marijuana plant.

It reaches full development here by developing its stalk, stems, and leaves. In order for this to work, you need an identical 16-hour light cycle that mimics spring and summer. After eight hours of utter darkness, the light can be turned back on. As the season of “autumn” approaches, the number of daylight hours and nighttime hours is reduced to a precise twelve. The plant’s reproductive cycle is triggered by a shift in the light spectrum to orange.

Annual bedding plants like marigolds and zinnias have vibrant, stunning blossoms; marijuana does not. The highly sought-after THC chemicals are found in the spikey “bud” of the flower. The seeds of commercial marijuana plants are not present unless they are being grown intentionally for the purpose of producing seeds, which is rare. “Sensimilla” refers to seedless plants. In order to make hash, the buds must be harvested before their THC is released in the form of resin or oil.

Leaves and stems are composted or otherwise removed, while the more desirable buds are dried, trimmed, and packaged for sale. However, most cannabis flowers are rolled into “joints” and smoked, or combined into a variety of baked goods, teas, and other consumables. Other extracts can be manufactured from cannabis flowers too.

How to Build a Marijuana Grow House

The framework is the first step in managing a marijuana-growing environment. Commercial marijuana greenhouses can be enormous operations that are housed in converted warehouses. Alternatively, they can be housed in custom-built steel structures that include a variety of grow rooms and support areas. Numerous rooms, from clones to vegetative to flowering, are devoted to keeping plants at various phases of their life cycles in a number of these industrial grow operations.

The mother plants and developing clones are housed in separate rooms in these large grow houses. As plants get larger, grow houses can accommodate hundreds of them on automated racks and trays. Upon reaching their ideal size, the plants are trimmed back and hung to dry in temperature and humidity-controlled microclimates. Buds are clipped, weighed, and packed in surgically clean chambers in commercial operations.

The mechanical rooms of the larger marijuana factories are likewise separate from the production rooms. Large-scale air conditioners deliver CO2-infused air to the grow rooms, which are critical to the health of the plants. Each plant receives the exact amount of hydronic that it needs with a sophisticated irrigation system that is computer-controlled to supply the precise amount of water at the precise moment.

Control centers house timers that turn the lights on and off in the grow rooms. The intense odor of flowering plants is kept under control by ducted recycling systems that limit the risk of molds, spores, pollen, pests, pathogens, and disease penetration from the outside. Grow houses are at their most vulnerable when they are covered in dust and grime, but this may be countered by sanitizing the entire facility, not just the individual rooms.

Then there’s the safety factor, too. All legal marijuana grow houses are required to have security measures in place to prevent internal theft and protect against external threats. There are a variety of security measures available, ranging from the most basic (such as locks, alarms, and cameras) to the most complex (such as biometrics and large servers to store years of video monitoring).

Closed Growing Environments, or CGE, is a term used to describe large marijuana grow-houses. Some of the largest CGE growers have raised millions of dollars in publicly traded ventures in order to build these vast facilities. It’s no surprise that they’re making tens of millions of dollars each year. It’s a fact of life that the vast majority of marijuana producers don’t operate on a massive scale, employing thousands or even tens of thousands of people.

Types of Marijuana-Growing Spaces

It is the anticipated yield that dictates the design of a marijuana grow facility since economies of scale can be realized. Here are a few concepts for marijuana grow rooms:

1. Marijuana Grow Cupboards

It’s not uncommon for a marijuana grow house to be only a little cupboard in the home of the grower. In most cases, it’s in a spare bedroom with little foot traffic and a cheap price tag. There are only a few plants to be found in most cabinets because they are only the size of a closet. One light and simple hand watering of a two-by-three-foot area is the usual for these types of spaces.

However, a single cupboard might provide a large amount of cash. During a growing season that lasts many months, enough buds can be produced to satisfy the needs of a medicinal patient or a recreational user.

2. Marijuana Grow Cabinets

A marijuana grow cabinet is the next step up in marijuana growing choices. This is a larger area, but it is still contained inside the confines of a normal room. A typical basement or outbuilding cabinet measures three feet by three feet (nine square feet) and can be as large as fifty square feet.

Larger grow cabinets necessitate a lot of lighting and electrical power, so it’s best to use the available resources in the space as much as possible. A grower may be able to justify a cabinet’s yield as “personal use” under the law, but it can also bring in a nice supplementary income.

3. Marijuana Grow Tents

Because of the high return on investment, these portable marijuana grow-houses are extremely popular. When they’re not in use, the tents can be stored away in a closet, basement, garage, or even a storage shed. There are a variety of sizes available, ranging from 16 square feet to 64 square feet, and each one can hold numerous plants.

Lightproof for a regulated atmosphere, these fabric grow tents are blacked out on the outside but reflective on the inside. They provide a low-cost means for farmers to implement automated watering and filtered ventilation systems.

Pot plants in various stages of development are commonly housed in multiple grow tents. Due to structural support, they can only grow to a certain size and have a limited life period. While moving the tents is physically taxing, the constant washing to keep the interior mold and pest-free takes a toll.

4. Full-Room Marijuana Grow Houses

The hobbyist is not capable of completing a room of more than 100 square feet. In addition to the time and money required to maintain these rooms, they are also quite expensive.

Full-room grow homes work best in basements or cellars since the earth’s temperature is lower and more stable underground than in an above-ground room, especially an attic. Several plants can be housed in a single space, which can be separated into distinct zones for different plant cycles.

As well as requiring more electrical and ventilation supplies than an existing structure can give, full-room grow houses also require substantial structural adjustments. As a result, a growing number of marijuana farmers are opting for custom-built, freestanding steel structures. Investing the time and money necessary to create a dedicated and trouble-free grow facility is a smart move for any serious producer looking to expand from a modest operation into the lucrative commercial marijuana industry.

In order to build a properly planned full-room marijuana grow house, it is necessary to employ high-quality materials such as soundproofing, ventilation, lighting, and automated controls.

Insulation in Marijuana Grow Houses

A well-insulated marijuana grow-house is essential to its success. Because of high humidity and warm temperatures, water vapor condenses on steel roof supports, especially in steel-framed buildings. The precise R-value and appropriate materials can really make it rain inside poorly insulated grow huts.

Spray-on closed-cell foam is by far the best insulation, whereas fiberglass batts are the worst. Mold and disease-resistant soy-based insulating products are also great. Soy is a light, affordable, and very fire-resistant option. If the grow house is a real business with a license, the grower may be limited in the insulation options he or she can utilize because of building codes.

Furthermore, the role of insulation in a marijuana grow facility extends far beyond only preventing cold air from entering and warm air from escaping. Building envelope insulation is a component of the outer sheathing, roofing, and flooring that helps keep the growing environment airtight and condensation-free by insulating the building.

When the plants are resting, the walls of a grow house should serve as an interior wall surface that reflects light and capitalizes on the artificial light, while keeping the grow room from being polluted by light pollution from the outside. Flat white paint with low light absorption or a Mylar wrap product are good options for reflective surfaces. Foil is a poor choice since it is difficult to maintain a flat surface. Because of the foil’s imperfections, light is reflected in an uneven manner, causing “hot spots” that burn plants.

Mechanical ventilation is essential in a well-insulated grow house to keep the air temperature, humidity, and the inevitable marijuana plant odor in check.

Ventilation in Marijuana Grow Houses

When it comes to cultivating a healthy crop of marijuana, fresh air rich in carbon dioxide is the most crucial ingredient. Pot takes in CO2 and releases oxygen into the atmosphere, just like any other plant. The ability of plants to develop and flower is destroyed when there is a lack of carbon dioxide in the air.

The quality of the air isn’t solely dependent on the amount of carbon dioxide it contains.

The temperature in the greenhouse must remain steady at all times.

Setting Up A Cannabis Grow - Greenhouse Product News

Lower than 85 degrees Fahrenheit and with an average humidity of 70% are ideal.

Because of “grow-lights” and water requirements, it might be difficult to maintain the proper temperature and humidity in the environment. For every 1,000 watts of illumination, a typical air exchange rate is 450 cubic feet per minute.

Marijuana plants are particularly vulnerable to sudden and extreme changes in their environment. Temperature, humidity, and sun exposure can swiftly destroy a crop, leading to flowering failure or death. Having a well-balanced air conditioning system that controls the flow of air is crucial in a marijuana grow-house.

Air-handling equipment, as well as any auxiliary fan units, need to be situated in the proper area as well. It is important for cannabis plants to have the CO2-rich air enter through their lower leaves and the oxygenated air exhale from the top in the same way that plants suffer when a crop is too densely packed to allow for proper air flow.

Because plants need less CO2 when they are dormant, boosting atmospheric CO2 levels is a more difficult task. CO2 generators are commonly used in grow rooms to maintain a natural equilibrium within a closed environment.

In addition, because marijuana plants require clean air, larger operations must use scrubbers, ozonators, and charcoal filters. The blossoming stage fragrance is likewise controlled by these mechanical ventilation additions. Building a marijuana grow-house necessitates the use of the proper air management equipment.

Lighting in Marijuana Grow Houses

Now let’s talk about marijuana grow room lighting. Choosing the optimum type, quantity and size of artificial lighting for a marijuana grow facility is crucial. Size of the grow house and the amount of harvested plants determine lighting requirements and where they should be placed.

For every 10 square feet of floor space, an average of 800 watts of high-intensity lights should be used. Metal halide (MH) or high-pressure sodium (HPS) lamps are often used in marijuana cultivation (HPS). Cloning, for example, may necessitate the use of induction, LED, or plasma lights.

Lighting location is critical. If the lights are too close to the plants, they could be damaged or even destroyed. Photosynthesis, the process through which plants convert light into energy, is impossible under the conditions of distant lighting.

Irrigation in Marijuana Grow Houses

Marijuana plants can’t thrive without water, and this is true for all living things.

How much water each plant requires is complicated and depends on

  • The growth phase
  • Infrared radiation
  • The marijuana grow room’s relative humidity level.

You can get away with hand watering small marijuana grow rooms on an as-and-when basis. However, with large-scale grow operations, this essential process can become extremely time-consuming. These automated systems use computer-controlled water supply to deliver the precise amount of water to each plant as it is required. Under- or over-watering marijuana plants can both hurt the plants.

There are automatic irrigation systems that are quite sophisticated. Nutrient concentrations are adjusted according to the stage of development of the plants. Depending on where the grow house is located, water can be expensive or scarce. In some cases, municipal services are used and are charged for. Recirculation tanks and outside rainwater storage tanks are used in some of the ‘green’ grow houses, as are drilled or artesian wells.

A marijuana grow house’s irrigation system is just as crucial as the building materials themselves in terms of preparation and implementation.

Using Steel Structures in Marijuana Grow Houses

Back to the drawing board when it comes to creating a marijuana grow home. The materials used in the grow-house structure are the most important factor to consider before anything else.

There are various options for standalone grow rooms, however wood is a poor choice. When exposed to the high levels of moisture common in marijuana grow rooms, wood becomes brittle. Mold that kills crops can swiftly twist and rot in this material. In addition to being very flammable, wood should be ruled out because of this.

A grow-house construction can be supported by plastics and other composite materials, but they are expensive and difficult to get. It’s possible to build with concrete, however this material is time consuming and expensive to use in construction.

Steel is the greatest building material for a marijuana grow-house structure. Steel-framed structures are inexpensive to construct and take only a few days to complete. They’re not flammable, won’t twist or decay, and won’t harbor infections within. Tiny steel constructions, such as garden sheds, can be constructed using panels and roofs made of the same material as the walls. Buildings can also be massive, clear-span constructions designed to accommodate a large number of plants.

Sturdy and weather-resistant, steel constructions are ideal. Heavy lighting and ventilation fixtures can be suspended from them with ease. Light-reflective coating can be applied to steel frames to make them more energy-efficient. They are also able to cultivate marijuana in every climate you can dream of.

If you are planning to build a marijuana grow-house, regardless of size, MBMI Steel Buildings is the place to shop

Think MBMI when you need a steel structure designed and built. An American metal building company specializing in custom-made structures using the most cutting-edge methods. MBMI employs only the finest steel materials. With our in-house design and advisory department, we help you develop the greatest marijuana grow home.

Final Words

Be careful with each and every one of your projects! Don’t make your template more complicated. Don’t let yourself become bogged down in the minutiae of life by obsessing about the minor things.

There is no such thing as an ideal climate for growing weeds, even in a weed greenhouse, which can be controlled. After you begin to grow, you should be prepared for your greenhouse to change and evolve. You’ll have to adapt to the new realities as they emerge.

Now that you know how to build a marijuana greenhouse, you can begin creating plans for your own. Please take precautions to keep yourself and others safe.