PO-Film Multi-Span Greenhouse

For growers looking for a greenhouse covering with higher optical and weathering performance, the PO-Film Multi-Span Greenhouse provides a more advanced alternative to conventional PE and EVA film structures. Ruize Steel serves as a supplier with its own factory, offering customized greenhouse dimensions, PO film specifications, intelligent systems, and complete agricultural layout solutions according to climate, crop type, site conditions, and project requirements.

The greenhouse uses high-transmission agricultural PO film together with a reinforced hot-dip galvanized steel structure. Compared with conventional PE and EVA films, PO film is designed to provide higher light transmission, stronger weather resistance, better anti-drip performance, and longer outdoor service under suitable conditions.

The multi-span structure provides a large and organized growing area that can accommodate ventilation, shading, fertigation, temperature control, environmental monitoring, and other greenhouse systems. It is suitable for premium vegetables, fruit crops, flowers, seedling production, medicinal plants, research and demonstration farms, and other commercial agricultural applications.

Product Features

1. High-Transmission and Long-Life Agricultural PO Film

The greenhouse uses upgraded polymer PO agricultural film developed for demanding commercial cultivation environments. The film can be selected according to local climate, crop requirements, greenhouse design, and expected service conditions.

• High light transmission: Light transmission can reach approximately 90%–92%, providing relatively even natural light and supporting photosynthesis and crop development.
• Long-lasting anti-drip and anti-fog performance: The film is designed to reduce condensation and dripping on the inner surface, helping maintain a clearer growing environment in humid conditions.
• UV and weather resistance: UV-resistant additives improve resistance to prolonged sunlight exposure and temperature changes, helping reduce premature embrittlement and degradation.
• High tensile strength and tear resistance: Good film toughness helps withstand wind stress, hail impact, and routine agricultural contact.
• Low dust adhesion: The smooth film surface is less prone to retaining dust, helping maintain light transmission during outdoor use.

Under standard outdoor agricultural conditions, PO film can have a service life of around 5–8 years depending on film specification, climate, installation, and maintenance. Film performance can be inspected for light transmission, anti-drip behavior, tensile properties, and weather resistance according to the production and quality-control requirements.

2. Reinforced Hot-Dip Galvanized Steel Structure

The main steel frame is manufactured from quality carbon steel with structural specifications selected for large-span greenhouse applications, wind exposure, and long-term outdoor use.

Steel components are processed through rust removal and hot-dip galvanizing to improve corrosion resistance. The galvanized surface provides protection against oxidation, moisture, and atmospheric corrosion and can be specified for areas with higher humidity or coastal salt exposure.

The reinforced modular structure can be designed according to local wind and snow loads. Its greater structural rigidity makes it suitable for projects that require a more robust frame, while the multi-span layout creates a spacious growing environment for automated agricultural systems.

The steel structure can support automatic fertigation, shading, ventilation, temperature control, environmental monitoring, and other smart greenhouse equipment. Under suitable conditions and with proper maintenance, the steel frame can have a service life of more than 10 years.

3. High-Precision Modular Assembly

Greenhouse components are manufactured to consistent dimensions to improve interchangeability and assembly accuracy. The modular structure uses mainly bolted connections, reducing the need for on-site welding and making construction cleaner and more organized.

The assembled greenhouse provides a relatively well-sealed structure that can help improve environmental control. This makes it suitable for precision cultivation where temperature, humidity, ventilation, and other growing conditions need to be managed more carefully.

4. Flexible Customization for Smart Agriculture

Greenhouse dimensions and structural configurations can be customized according to land size, latitude, climate, crop type, automation requirements, and overall agricultural planning.

• Span width
• Bay spacing
• Eave height
• Ridge height
• Roof ventilation configuration
• Structural layout
• Film specifications
• Smart agricultural systems

The greenhouse can be configured for flat land, gentle slopes, connected agricultural parks, demonstration farms, research facilities, tourism-oriented agriculture, and other high-standard cultivation projects.

Three Film Greenhouse Options: PE / EVA / PO

The choice of greenhouse film should be based on local climate, crop requirements, required light transmission, expected service life, and project configuration.

1. PO-Film Multi-Span Greenhouse

• Positioning: High-standard smart agriculture, premium commercial cultivation, and modern agricultural parks
• Main advantages: High light transmission, long-lasting anti-drip performance, weather resistance, reduced dust adhesion, and compatibility with smart greenhouse systems
• Performance: Approximately 90%–92% light transmission depending on film specification, with stable optical and weathering performance under suitable conditions
• Service life: PO film approximately 5–8 years; steel frame more than 10 years with proper maintenance
• Typical applications: Premium flowers, high-quality vegetables, specialty fruit crops, nursery production, medicinal plants, smart agricultural parks, demonstration farms, and commercial export-oriented growing projects

2. EVA-Film Multi-Span Greenhouse

• Positioning: Mid- to high-range greenhouse for cold and humid growing conditions
• Main advantages: Diffused light, good low-temperature performance, and useful anti-drip and anti-fog properties
• Consideration: Light transmission and long-term weathering performance may be lower than those of higher-grade PO film depending on the specific material

3. PE-Film Multi-Span Greenhouse

• Positioning: General-purpose greenhouse for standard cultivation projects with basic covering requirements
• Main advantages: Practical configuration, broad application range, and simple structure
• Consideration: Light transmission, anti-drip performance, and service life depend strongly on film specification and may be lower than those of EVA or PO film

Optional Smart Greenhouse Systems

The PO-Film Multi-Span Greenhouse can be equipped with different smart and environmental-control systems according to the project requirements.

1. High-Temperature and High-Light Regions

• Automatic external shading system
• Internal shading system
• Roof ventilation
• Air circulation fans
• Forced cooling system

2. Humidity-Sensitive and Disease-Prone Crops

• High-capacity ventilation system
• Dehumidification and moisture-control equipment
• Enhanced drainage system
• Air circulation equipment

3. Cold and Low-Temperature Regions

• Internal thermal insulation blankets
• Heating equipment
• Hot-air heating systems
• Double-layer film insulation upgrades

4. Smart Commercial Farms

• Automatic fertigation system
• Intelligent temperature control
• IoT environmental monitoring
• Remote monitoring and mobile control

Supporting systems can be combined according to the greenhouse structure, crop type, local climate, and level of automation required.

Quality Control and Export Packaging

Ruize Steel applies standardized quality control throughout greenhouse manufacturing. The production process covers steel selection, reinforced galvanizing, precision forming, accessory processing, PO film cutting and heat sealing, component assembly, and final export packing.

For overseas projects, greenhouse components are packed with additional protection against impact, moisture, corrosion, and deformation during long-distance transportation. Steel components are separately protected, while PO film rolls are packed to reduce exposure to moisture and handling damage.

The packing method is arranged according to the greenhouse structure and transportation requirements to support safer sea freight, inland transportation, unloading, and installation at the destination.

High-Standard Project Support

For large agricultural projects and overseas greenhouse developments, technical support can include:

• Complete greenhouse construction drawings
• Detailed installation instructions
• Technical installation videos
• 24/7 online technical support
• On-site engineering guidance for larger overseas projects
• Installation team training
• Project acceptance and technical coordination
• Original replacement components and PO film supply
• System upgrades and maintenance support

The scope of project support can be arranged according to the greenhouse configuration, project size, location, and installation requirements.

Why Choose the PO Film Greenhouse?

1. Specialized PO Greenhouse Manufacturing

Ruize Steel focuses on greenhouse structures using PO agricultural film and reinforced steel systems, with attention to component accuracy, structural configuration, and overall greenhouse appearance.

2. Better Light Management

High-transmission PO film allows more natural light to reach the crop canopy. Combined with appropriate ventilation and environmental-control systems, the greenhouse can provide a more manageable growing environment for light-demanding crops.

3. Longer-Lasting Covering Performance

PO film is designed for improved resistance to UV exposure, weathering, tearing, and dust adhesion. Together with a galvanized steel structure, it is suitable for long-term outdoor agricultural applications.

4. Ready for Smart Agriculture

The multi-span structure can accommodate automated shading, ventilation, cooling, fertigation, heating, environmental monitoring, and remote-control systems, making it suitable for modern high-standard agricultural projects.

Frequently Asked Questions

1. What is the main advantage of PO film compared with PE and EVA film?

PO film is generally selected for its combination of high light transmission, weather resistance, anti-drip performance, mechanical strength, and longer outdoor service under suitable conditions. The actual performance depends on film formulation, thickness, climate, installation, and maintenance.

2. How should I choose between PO, EVA, and PE film?

PE film is suitable for general-purpose greenhouse projects where a practical covering solution is required. EVA film can be considered for colder or more humid environments where diffused light and anti-drip performance are useful. PO film is typically selected for projects requiring higher optical performance, longer covering service, and a higher level of greenhouse environmental management.

3. How long can PO film normally be used?

Under standard outdoor conditions, PO film can generally be used for around 5–8 years, depending on material specification, sunlight exposure, temperature variation, installation quality, local climate, and maintenance.

4. Can a PO-film greenhouse be used for smart automated cultivation?

Yes. The PO-Film Multi-Span Greenhouse can be integrated with automatic shading, ventilation, cooling, heating, fertigation, environmental monitoring, and remote-control systems. The final system configuration depends on the crop, climate, greenhouse dimensions, and required level of automation.

5. How well can the PO greenhouse withstand wind and snow?

The greenhouse uses a reinforced steel structure that can be designed according to local wind and snow loads. Structural performance depends on span, steel specifications, foundation conditions, greenhouse dimensions, and local engineering requirements.

6. Is PO film difficult to maintain?

PO film is designed to reduce dust adhesion and condensation and to provide improved weather resistance. Routine inspection is still recommended, especially after severe weather, and damaged sections should be repaired or replaced when necessary.

7. Does the greenhouse support complete agricultural park planning and custom dimensions?

Yes. Greenhouse dimensions, structural configuration, film specifications, ventilation systems, shading systems, environmental controls, and other components can be customized according to land conditions, crop type, climate, automation requirements, and overall site planning.

8. Can PO-film greenhouses be exported for large overseas agricultural projects?

Yes. Ruize Steel can supply customized greenhouse structures for overseas agricultural parks, commercial farms, demonstration projects, and larger engineering applications. Project support can include design coordination, production, export packaging, technical documentation, and after-sales assistance.

9. What crops are suitable for a PO-film greenhouse?

The greenhouse can be used for premium flowers, strawberries, tomatoes, sweet peppers, specialty vegetables, nursery plants, medicinal crops, grafted seedlings, fruit crops, and other commercial crops requiring controlled growing conditions.

10. Is there project support for bulk greenhouse orders?

For large-scale projects, distributors, and bulk orders, Ruize Steel can provide project-based support such as detailed design, greenhouse layout planning, production scheduling, technical coordination, and long-term replacement component supply according to the specific project requirements.