1INDUSTRIAL GREENHOUSE CONSTRUCTION

INDUSTRIAL GREENHOUSE CONSTRUCTION

Let's talk about the primary types of industrial greenhouses. It's relatively uncommon knowledge that due to their exceptional light transmittance and climatic stability, professional industrial greenhouses are typically constructed using glass.

The Netherlands holds a prominent position in greenhouse production and greenhouse equipment on a global scale. In the last ten years, advancements in greenhouse technologies have enabled a shift from energy-intensive to environmentally sustainable greenhouse practices. Collectively, Dutch greenhouses span an area exceeding 60 square kilometers, creating a glass city within the Westland region, which is also home to the PERSPEKTA company headquarters.

The supporting framework of all greenhouse types includes columns, trusses, gutters, purlins, braces, connections, and connecting components.

This type is referred to as a "lightweight structure" because the load-bearing part is made of steel, and the material for securing the covering is aluminum.

The fundamental principle of greenhouse constructions is their dependability and long-lasting quality, which is guaranteed by accurate structural calculations for all external and internal pressures.

The greenhouse structures are typically crafted from cold-rolled profiles, which undergo galvanization through a hot-dip galvanization process. The steel structure comprises key elements, such as columns, trusses, beams, purlins, and braces. 

The use of aluminum profiles helps to reduce the weight of the structure, secure the glass, manage rainwater drainage, and ensure the structural integrity of the construction. The aluminum structure includes profiles for glazing and connecting troughs.

The foundation of the greenhouse, known as the "construction," serves multiple purposes, including shielding plants from unfavorable weather conditions, facilitating the installation and operation of engineering systems, and ensuring the overall durability throughout its service life. The construction typically represents 10-25% of the total construction cost for a fully equipped greenhouse.

The wealth of Dutch history has contributed to the creation of three fundamental greenhouse models:

aVENLO GREENHOUSE

Columns

The columns determine the height of the greenhouse with their own length. The optimal height of the greenhouse depends on the type of plants and the cultivation method. Today, we increasingly recommend greenhouse heights of 6.0m, 6.5m, and 7.0m. However, the choice can range from 4.5m to 12.0m. The columns of the greenhouse are constantly subjected to pressure.

Firstly, they bear the weight of the glass, aluminum roof, and internal greenhouse systems.

Secondly, greenhouse columns experience vertical loads as a result of wind suction.

Thirdly, the steel columns are subjected to horizontal loads due to the pressure exerted by the trusses affected by the wind.

Steel trellises

In addition to the columns, the trusses create the framework of the Venlo greenhouse, serving as a structure to transmit all loads to the foundation. These steel trusses also serve as the support for internal systems like ventilation system, shading systems, hanging growing gutters, heating systems, steel wire, and any other systems as required by your project. The trusses themselves consist of four elements: the upper and lower chord profiles, diagonals, and end plates.

The span of the greenhouse is determined by the length of the truss, which is the distance between columns. The typical truss width is 8.0 meters, 9.6 meters, and 12.0 meters, with 8.0 meters being the most prevalent. Two ridges are located on a single span of this greenhouse. This greenhouse is offered as a versatile solution for both vegetable and flower producers.

Use of ALUMINUM PROFILES

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bWIDESPAN GREENHOUSE

The benefit of these types of greenhouses is a minimal amount of shading. This design provides almost limitless opportunities to fulfill specific needs for increased light and air circulation. Ventilation through uninterrupted windows ensures the maximum intake of fresh air. One-sided or two-sided window openings are particularly suitable for anti-mosquito screens.

The wide-span greenhouse is the ideal solution for many types of crops. The significant distance between columns provides more space for plants and automation.

TECHNICAL FEATURES

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cCABRIO GREENHOUSE

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2COMMERCIAL GREENHOSUE STRUCTURE
aMulti-span greenhouses
bTunnel greenhouses
cPlastic cover
dPolycarbonate cladding

Should you have questions about selecting the right cladding, feel free to reach out to our team!

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3HOBBY GREENHOUSE STRUCTURE

What distinguishes a conservatory, a greenhouse, and an orangery from each other?

Conservatories, greenhouses, and orangeries are three types of structures utilized for plant cultivation, each differing in their purpose, design, and functional aspects. Essentially, their primary purpose set them apart.

A conservatory typically lean to a house. It's crafted for leisure, offering a serene spot to appreciate garden or natural views, while also serving as a potential space for growing plants. It's an ideal place to bask in the warmth of the sun and the beauty of greenery indoors, particularly beneficial during the colder months.

In contrast, a greenhouse, while structurally similar, is fundamentally focused on the cultivation of plants. It can be either a freestanding structure or attached to a house. Constructed from materials like glass or plastic, greenhouses are designed to optimize sunlight exposure. Their chief aim is to provide a regulated environment conducive to the growth of plants, especially those that aren’t suited to the local outdoor climate.

An orangery, on the other hand, is usually more ornate and traditionally elegant, often incorporating architectural embellishments. Historically used primarily between the XVII-XIX centuries, orangeries were spaces for the winter storage and cultivation of exotic and tropical plants, such as citrus trees. They are generally larger and more elaborately decorated than greenhouses and can also function as venues for entertainment and social gatherings.

To create a conservatory, orangery, or greenhouse, the following materials are commonly used:

✔️wood;
✔️metal without galvanization;
✔️galvanized metal;
✔️aluminum.

Experience shows that wood deforms the fastest and quickly becomes unusable. Non-galvanized metal is a more durable option compared to wood, but due to the lack of galvanization, it loses its presentable appearance very quickly. Meanwhile, galvanized metal is the least esthetic material.

Therefore, we use only high-quality aluminum for our structures. That's why your greenhouse will not only last you a long time but will also maintain a beautiful appearance.



 


 

The structure's coating is applied using powder coating technology, which offers several key advantages over traditional painting methods:

ВIn its standard configuration, the structure comes with tempered glass cladding, though there's an option to use polycarbonate instead.

The primary benefit of using tempered glass in greenhouses is its ability to transmit a lot of light, essential for the growth of plants. It is also known for its strength and safety. Tempered glass is significantly more robust than regular glass, being 6-7 times stronger due to its thermal or chemical treatment. This added strength makes it better able to withstand external pressures like wind and snow. In case of breakage, tempered glass crumbles into small, dull pieces, minimizing injury risks.

Tempered glass not only enhances the aesthetic appeal of your greenhouse but also ensures safety.

Should you opt for polycarbonate, we shall clad the structure with 10mm polycarbonate sheets. This material is also used in building of professional and industrial greenhouses. The key advantages of using polycarbonate as a cladding of the greenhouse:

  • • Enhanced thermal insulation, crucial during the winter season;
  • • The ability to diffuse light, mitigating the risk of sunburn and offering complete protection to plants from ultraviolet radiation;
  • • Eliminating the necessity for additional screening;
  • • The combination of lightweight and durable characteristics, which are vital during the assembly and transportation processes.

Ventilation windows are included in all standard models of Perspekta greenhouses. These windows facilitate air circulation, preventing overheating and creating ideal conditions for plant growth. Thanks to the option of manual or automatic opening, they make it easier to control the climate inside the greenhouse, enhancing ease of use.

The Perspekta greenhouse's design presents a practical and visually appealing option for gardeners seeking to cultivate a diverse range of plants within a secure and controlled environment.



 
aCLASSIC
bORANGERY
cSPECIAL CONSTRUCTIONS


 

Our range goes beyond just various external styles and shapes of the structures. If you wish, each greenhouse can be outfitted with internal features such as irrigation, heating, screening, and lighting systems. These enhancements are designed to optimize both the comfort and the growth potential of your plants, thereby elevating your overall gardening experience.

Choose to design and build your dream greenhouse with us!

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