PC Sheet Greenhouse

A greenhouse covered with polycarbonate hollow sheets is referred to as a PC Sheet Greenhouse. Its main features include a lightweight structure, effective anti-condensation performance, excellent light transmission, strong load-bearing capacity, superior thermal insulation, high impact resistance, long service life, and an attractive appearance.

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A PC Greenhouse, also known as a polycarbonate sheet greenhouse, is a greenhouse structure covered with polycarbonate hollow sheets instead of traditional plastic film or glass. Thanks to its excellent insulation performance, strong impact resistance, and long service life, the PC greenhouse has become a popular choice for modern agricultural projects that require durability, stability, and controlled growing environments.

This guide provides a comprehensive overview of PC greenhouses, explaining their structure, performance, applications, and key considerations for selection.

What Is a PC Greenhouse?

A PC greenhouse is a greenhouse system that uses polycarbonate (PC) hollow sheets as the main covering material. These sheets are typically installed on a steel frame structure, forming walls and roofs that allow light transmission while providing strong protection against weather conditions.

Compared with film greenhouses, PC greenhouses offer better insulation and longer lifespan. Compared with glass greenhouses, they are lighter, safer, and more impact-resistant, making them suitable for a wide range of climates and applications.

Structural Design and Materials

The structure of a PC greenhouse is usually made of prefabricated, hot-dip galvanized steel components. This ensures corrosion resistance and long-term stability, even in humid or coastal environments.

Polycarbonate hollow sheets, commonly ranging from 4 mm to 10 mm in thickness, are fixed to the frame using aluminum profiles and sealing systems. The hollow structure of the sheets creates an air layer that significantly improves thermal insulation.

Roof designs may vary, including arch roofs, gable roofs, or pointed roofs, depending on local climate conditions and snow or wind load requirements.

Light Transmission and Insulation Performance

One of the key advantages of a PC greenhouse is its balanced light transmission and insulation capability.

Polycarbonate sheets allow high levels of diffused light to enter the greenhouse. This reduces direct sunlight intensity, helping prevent plant scorching while ensuring even light distribution across the growing area.

At the same time, the hollow structure of the sheets provides excellent heat retention. This makes PC greenhouses particularly suitable for regions with cold winters, large day–night temperature differences, or crops that require stable temperatures.

Weather Resistance and Durability

PC greenhouses are designed for long-term outdoor use. Polycarbonate sheets have strong impact resistance and can withstand hail, heavy rain, and strong winds better than traditional film materials.

Most PC sheets are UV-protected, preventing yellowing and material degradation over time. With proper installation and maintenance, polycarbonate coverings can last 10 years or more, significantly reducing replacement frequency compared with film greenhouses.

The combination of a rigid steel structure and durable covering material makes PC greenhouses reliable for long-term agricultural investment.

Ventilation and Climate Control Options

Although PC greenhouses are more enclosed than film greenhouses, they can still achieve effective ventilation through well-designed systems.

Common ventilation options include:

Roof vents (manual or motorized)
Side vents with flap or sliding mechanisms
Ridge vents for large-span structures

For projects requiring more precise control, PC greenhouses can integrate additional systems such as shading screens, exhaust fans, cooling pads, and internal circulation fans. These systems help regulate temperature, humidity, and airflow according to crop requirements.

Typical Applications of PC Greenhouses

PC greenhouses are widely used in various agricultural and horticultural fields, including:

Vegetable production requiring stable temperatures
Flower and ornamental plant cultivation
Seedling and nursery operations
Agricultural research and demonstration facilities
Urban agriculture and educational greenhouses

Because of their clean appearance and durability, PC greenhouses are also commonly used in projects where aesthetics and long service life are important.

Installation and Maintenance Considerations

Installation of a PC greenhouse usually takes longer than a film greenhouse but is still relatively straightforward due to modular design and prefabricated components.

Maintenance requirements are generally low. Routine inspections focus on:

Checking sealing systems
Cleaning polycarbonate surfaces
Inspecting ventilation mechanisms

Unlike film coverings, polycarbonate sheets do not require frequent replacement, which helps reduce long-term operating costs.

PC Greenhouse vs. Film Greenhouse

When compared with film greenhouses, PC greenhouses offer:

Better thermal insulation
Higher structural rigidity
Longer service life

However, film greenhouses typically have lower initial costs and faster installation. The choice between the two depends on climate conditions, crop requirements, and budget planning.

For projects focused on long-term stability and controlled environments, PC greenhouses are often the preferred solution.

Key Factors to Consider Before Choosing a PC Greenhouse

Before selecting a PC greenhouse, it is important to consider:

Local climate and weather conditions
Crop type and temperature requirements
Desired service life of the greenhouse
Budget for initial investment and long-term operation

Proper structural design and system configuration are essential to ensure performance and reliability.

Final Thoughts

A PC greenhouse is a practical and durable solution for modern agriculture. Its combination of strong insulation, high impact resistance, and long service life makes it suitable for a wide range of growing environments.

For growers and project developers seeking a stable, long-term greenhouse solution with consistent performance, the PC greenhouse remains a reliable and well-proven option.

Technical Parameters

Span options: 9.6 m / 10.8 m / 12 m; Bay width: 6 m; Side column spacing: 3 m
Eave height: 4 m; Ridge height: 5.8 m; External shading height: 6.6 m
Roof angle: 25°

Performance Specifications

Wind load capacity: 0.56 kN/m² (equivalent to Beaufort scale 11)
Snow load capacity: 0.5 kN/m²
Crop load: 15 kg/m²
Maximum rainfall drainage capacity: 140 mm/h

Standard Configuration

Greenhouse civil works: foundation, surrounding brick walls, and drainage channels
Main steel structure: prefabricated, hot-dip galvanized for corrosion protection
Covering material: 5 mm PC polycarbonate hollow sheets
Roof vents: motorized single-side flap vents, rack-and-pinion drive system
Side vents: motorized double-side flap vents, rack-and-pinion drive system
External shading system: motorized shading system with rack-and-pinion or stainless steel cable drive mechanism

Key Features

The greenhouse frame adopts a pointed-roof continuous structure and is covered with 5 mm PC polycarbonate hollow sheets, providing strong resistance to snow load and excellent thermal insulation.
Various specialized profiles are used to ensure a compact structure with a clean, uniform, and attractive appearance.
Each span is equipped with 0.8 m wide motorized single-side roof flap vents and double-side flap side vents, ensuring effective air exchange and excellent natural ventilation and cooling with low operating costs.
The external movable shading system allows convenient adjustment of light intensity and internal temperature.

1. What is the difference between a PC greenhouse and a glass greenhouse?

A PC greenhouse uses polycarbonate sheets instead of glass. Compared with glass, PC sheets are lighter, more impact-resistant, provide better thermal insulation, and reduce the risk of breakage, making them suitable for modern agricultural and commercial applications.

2. What thickness of PC sheet is commonly used for greenhouses?

Common thicknesses range from 4mm to 8mm, with 5mm and 6mm hollow PC sheets being the most widely used. Thicker sheets offer better insulation and load resistance, especially in cold or windy regions.

3. Is a PC sheet greenhouse suitable for year-round use?

Yes. Thanks to the multi-wall structure of PC sheets, PC greenhouses provide good heat retention in winter and stable light diffusion in summer, making them suitable for year-round cultivation when combined with proper ventilation and shading systems.

4. How long is the service life of a PC greenhouse?

High-quality UV-protected PC sheets typically last 10–15 years, while the galvanized steel structure can last much longer with proper maintenance, offering a strong long-term investment value.

5. What crops are best suited for PC greenhouses?

PC greenhouses are widely used for flowers, seedlings, vegetables, nurseries, and research cultivation, especially crops that require stable temperature control, diffused light, and protection from extreme weather.

T***r

2025-03-15

FANGCHENG’s PC greenhouse has been a great investment for us. The structure is strong, the climate is stable, and our crops grow better than before. We no longer worry about wind or constant repairs. Excellent installation and support—highly recommended.

T***A

2025-02-08

FANGCHENG’s greenhouse has greatly improved the stability of our hydroponic system. Temperature and humidity are much easier to control, and our vegetables grow faster and more uniformly. The structure is clean, well-designed, and perfect for hydroponic production. We’re very satisfied with the performance and support.

C***M

2024-06-20

The multi-span greenhouse from FANGCHENG has made our dragon fruit production much more stable. Temperature and humidity are easier to manage, flowering is more consistent, and fruit quality has clearly improved. The structure handles local weather well, and overall, it has been a reliable upgrade for our plantation.