Plastic film greenhouse is an innovative greenhouse structure, crafted with durable plastic film as the primary covering material. This versatile and efficient design is extensively embraced in the realm of agricultural cultivation and numerous other fields, offering a modern solution to enhance growth conditions and productivity.
Frame part
The robust foundation of the Durable VERTEX PVC Film Greenhouse is crafted from high-quality metal materials, including resilient steel and galvanized pipes. These components are meticulously cut, bent, and welded to create a steadfast structure that ensures enduring support. Depending on the greenhouse's size and design load, the diameter and wall thickness of the steel pipes vary. For instance, compact greenhouses may utilize pipes with a diameter of 25-32mm, while larger greenhouses require pipes with greater diameters and thicker walls. This design guarantees structural stability, enabling it to effortlessly support plastic films, withstand snow and wind loads, and accommodate other weights without compromise.
Greenhouse frames are available in a variety of innovative shapes, with the widely favored designs being arches and ridges. The circular arch frame provides enhanced coverage for the plastic film, ensuring uniform weight distribution and maximizing the open internal space. Alternatively, ridge-style greenhouses boast a design reminiscent of a traditional house roof, offering superior drainage advantages. This approach is notably adaptable, catering to planting methods that demand elevated spaces, making it an ideal choice for specific cultivation techniques.
Plastic film
A pivotal element in greenhouse construction, plastic film serves as the primary cover, significantly influencing the internal environment. Popular choices include polyethylene (PE) film and polyvinyl chloride (PVC) film. PE film is an economical option, celebrated for its flexibility and excellent light transmittance, ranging from 85%-93%. It also offers commendable puncture resistance. Conversely, PVC film excels in thermal insulation and achieves light transmittance levels of 80%-90%, although it is priced higher. However, over time, the plasticizer in PVC may leach out, which could affect its performance.
The variety of plastic film thicknesses, generally spanning from 0.08-0.2mm, allows for customization based on durability and budget considerations. Thicker films promise enhanced longevity, albeit at an increased cost. Film color options further enhance functionality; transparent films deliver optimal light transmission, fostering plant photosynthesis. Additionally, specialized films, like those infused with blue pigments, can modulate light quality, stimulating specific plant growth characteristics and yielding unique cultivation benefits.
Ventilation system
Natural ventilation remains a cornerstone for plastic film greenhouse climate management, typically achieved through strategically placed vents along the side walls or roofs. Side wall vents may feature manually operated plastic steel windows or rolled film openings controlled via film rollers, offering ease of use and adjustable vent sizes to meet precise needs. Roof vents often employ ridge ventilation techniques, where vents positioned at the roof's apex facilitate the release of hot air, leveraging the natural rise of warm air to efficiently cool and ventilate the greenhouse environment.
In expansive plastic film greenhouses, mechanical ventilation systems provide a formidable alternative, comprising power-driven fans and an intricate network of ventilation pipes. Fans, positioned strategically on one side of the greenhouse, work in harmony with pipes that disperse fresh air uniformly throughout the interior. This setup boasts high ventilation efficiency, though it demands a higher investment in both equipment and operational expenses.
Sunshade system
The sunshade system of a plastic film greenhouse is centered around the versatile sunshade net. Installed either inside or outside the greenhouse, each positioning offers distinct advantages. Internal sunshade nets are straightforward to install and maintain, although they provide a slightly reduced shading effect. On the other hand, external sunshades offer superior protection by directly deflecting sunlight away from the film, substantially mitigating heat buildup inside. However, they require a more robust structural installation to withstand external elements like wind and rain.
Sunshade nets are available in various specifications, tailored to meet diverse shading needs, with rates such as 40%, 60%, and 80%. For plants with minimal light intensity requirements, such as edible fungi and seedlings, a higher shading rate net is recommended. This helps prevent damage from intense sunlight, ensuring optimal plant health and growth.
Insulation system
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Lower cost
Compared with glass greenhouses and polycarbonate sheet greenhouses, the construction cost of plastic film greenhouses is much lower. The plastic film itself is cheap, and the frame structure is relatively simple, and the material cost and installation cost are relatively low. This makes plastic film greenhouse in agricultural production more easily accepted by the majority of farmers, especially suitable for small and medium-sized farmers. |
Good light transmission
Transparent plastic film can provide good natural lighting conditions, so that the greenhouse interior light is sufficient, conducive to plant photosynthesis. Moreover, the light transmission performance of plastic film can be adjusted by selecting different film materials and thicknesses to meet the requirements of different plants for light intensity and light quality. |
Construction flexibility
The size and shape of the plastic film greenhouse can be flexibly designed according to the actual site and planting needs. It can be a small simple greenhouse for home gardening or small seedling breeding; It can also be a large multi-storey greenhouse for large-scale vegetable and flower planting. The assembly of the frame structure is relatively simple and the construction period is short. |
1. How long is the delivery time?
According to your greenhouse size and system, the delivery time is usually 15-60days.
2. Can you supply sample?
Small parts can be supplied, but you should pay the express cost.
3. Can your company supply greenhouse design?
Our company can give greenhouse design according to your land and plan after deposit. And we can give simple drawing before signing contract.
4. How to install greenhouse ?
Firstly we prepare the material and send the material to your city.
After your customs clearing, we send 2-4 engineers or all workers to guide to install.
If you want to save money, we only send engineers, and you match local workers.
If you think it is hard to build the greenhouse, we also can send engineers and workers to install for you.
5. When installing, what cost should we pay?
Our engineers and workers visas and round-trip tickets, their foods and accommodation, their communication
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