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External Diffuse White Screen for Greenhouse

An open-structure external white screen that diffuses sunlight, improves light uniformity, and enhances airflow for cooler greenhouse climates. It reduces heat stress by day, conserves warmth at night, and shields crops from hail, heavy rain, and intense UV exposure.
 
  • TW30 E

  • TOP

  • Polyester, Polyolefine

  • OEM, OED

  • ISO

  • China

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Product Introduction

The external white screen is designed with an open-structure surface that enhances light diffusion and improves overall light quality inside the greenhouse. Its highly reflective white side delivers soft, uniform, multi-angle light to crops, helping stimulate stronger growth and better canopy development. The open mesh allows continuous airflow, effectively lowering both greenhouse and plant temperatures during high-heat conditions while providing reliable shading throughout the day.

At night, the screen minimizes heat loss by maintaining a warmer microclimate around the plants, supporting stable growth across varying climates. Built for outdoor protection, the external white screen also shields greenhouses from hail, heavy rain, and harsh weather, making it a durable, energy-efficient solution for growers seeking improved climate control and crop performance.

Performance Features

1. Light Diffusion

The white film strips are designed to enhance light diffusion, delivering soft, uniform, multi-angle light to crops for improved growth and higher light-use efficiency. By reducing harsh shadows and increasing canopy penetration, the screen helps create a balanced greenhouse light environment, supporting stronger photosynthesis and healthier plant development across different cultivation stages.

2. Open-Structure Design

The open-weave structure ensures strong ventilation and airflow, helping maintain a stable greenhouse climate. This design reduces heat buildup, lowers humidity, and minimizes disease risk caused by stagnant air. The natural cooling effect improves plant comfort during hot periods, making it an effective climate screen solution for growers seeking better temperature control and energy savings.

3. Long Service Life

Made from co-extruded polymer film strips and high-strength monofilament fibers, the screen offers excellent durability and weather resistance. UV-stabilized materials protect it from sunlight, rain, and wind, ensuring consistent shading performance over years of use. Its robust construction makes it a long-lasting, low-maintenance choice for commercial greenhouses.

4. Dimensional Stability

Engineered for thermal stability, the screen maintains its shape even in high-temperature environments. At 70°C for 2 hours, both longitudinal and transverse shrinkage remain below 2.0%, ensuring the screen stays flat and properly tensioned. This stability helps maintain uniform shading and reduces adjustment or replacement frequency.

5. Fexible Applications

The screen supports multiple installation methods—rolling, sliding, or fixed—making it suitable for various greenhouse designs and climate control systems. It performs effectively as an external shading solution, reducing temperature, improving light quality, and protecting crops. Its versatility allows use in vegetable greenhouses, flower cultivation, nurseries, and large commercial growing operations.

Technical Specifications

greenhouse screen

TW30 E

greenhouse screen

TWB70 E


Model Material

Light Transmittance

(sunny)

Light Transmittance

(cloudy)

Shading Rate Energy Saving Rate
TW30 E Polylolefin 70%
63% 30% 15%
TW40 E Polyolefin 61% 56% 39% 15%
TW50 E Polyolefin 49% 46% 51% 20%
TW60 E Polyolefin 41% 38% 59% 20%
TWB65 E Polyolefin 36% 34% 64% 20%
TWB70 E
Polyolefin 31% 28%
69% 20%

Process Technology

What is 6-Guage Warp Knitting Technology?

At the heart of this product lies 6-Gauge Warp Knitting Technology, a cutting-edge textile process that combines strength, precision, and flexibility. In this system, yarns are interlaced vertically using six needles per inch, creating a dense and uniform fabric structure. The interweaving of aluminum and PET strips results in a highly durable yet lightweight climate screen with superior mechanical and optical performance.


greenhouse screen

Warp Knitting Machine

greenhouse screen

Warp Knitting Machine

Advantages of Warp Knitting Technology

  • High Structural Accuracy: The even distribution of yarn tension ensures consistent density and excellent dimensional stability across large areas.

  • Enhanced Durability: The dense knit pattern provides outstanding resistance to tearing, stretching, and deformation, ensuring a long operational lifespan.

  • Optimized Light Management: Precisely spaced diffusive elements scatter light evenly, promoting homogeneous illumination within the crop canopy.

  • Energy Efficiency: The reflective aluminum components minimize heat gain during the day and help retain thermal energy at night.

  • Soft and Easy to Operate: The flexible textile construction folds smoothly and occupies minimal space when retracted.

  • Fray-Resistant Cutting: The edges remain stable after trimming, allowing easy customization and installation without unraveling.

  • Secure Material Bonding: PET and aluminum layers are tightly fused to prevent delamination, ensuring reliable performance even in automated climate control systems.

This combination of material engineering and textile precision ensures that each climate screen performs consistently over years of demanding greenhouse use.

Applications in Greenhouse Cultivation

1. Efficient External Shading

Provides high-performance external shading to reduce direct solar radiation and prevent overheating in greenhouses during peak summer conditions. By lowering heat load on plants and structures, the screen helps maintain a cooler, more stable climate, improving crop resilience and reducing the need for excessive mechanical cooling or energy consumption.

2. Improved Natural Ventilation

The open-structure design maximizes natural airflow, allowing hot air to escape quickly and fresh air to circulate freely. This ventilation effect helps stabilize humidity, reduces disease pressure caused by stagnant air, and creates a more comfortable environment for crops, especially in regions with intense sunlight and high temperatures.

3. Enhanced Light Diffusion

The reflective white surface produces soft, diffused, multi-angle light that penetrates the crop canopy more evenly. This improves photosynthetic efficiency, reduces shading competition between plants, and supports uniform growth. Better light distribution also helps prevent leaf burn and enhances overall greenhouse light quality for sensitive crops.

4. Nighttime Heat Retention

When deployed at night, the screen helps reduce thermal radiation loss, maintaining a warmer microclimate around the plants. This is particularly beneficial in areas with large day-night temperature differences, helping stabilize crop development, prevent cold stress, and support consistent growth during cooler nighttime conditions.

5. Weather and UV Protection

The durable external white screen provides a protective barrier against harsh weather, including hail, heavy rain, and strong winds. Its UV-stabilized materials also shield crops from excessive sunlight and long-term UV exposure, prolonging greenhouse longevity and minimizing crop damage throughout the year.

6. Versatile Crop Applications

Ideal for a wide range of crops—vegetables, flowers, young plants, tree seedlings, and commercial horticulture varieties. Its climate-control benefits support both high-value specialty crops and large-scale production systems, making it a flexible, effective solution for growers aiming to optimize greenhouse performance across seasons.

Manufacturing & Quality Control

Production Process

Every roll of the Transparent Diffuse Energy-Saving Screen is produced in a fully automated weaving and lamination facility. The production process emphasizes consistency and precision—each batch undergoes strict quality checks for material integrity, shading accuracy, and tensile strength. Our in-house testing ensures that every product meets international greenhouse standards for durability, energy performance, and light transmission.

greenhouse screen

Warpping

greenhouse screen

Knitting

greenhouse screen

Testing

greenhouse screen

Packing

Climate Screen Testing Equipment

By combining these testing tools, we guarantee that each climate screen meets strict quality standards for energy efficiency, light management, durability, and UV resistance, providing growers with reliable and consistent greenhouse solutions.

Equipments

To ensure the highest quality and performance of our climate screens, we utilize advanced testing equipment to evaluate all critical aspects of the material:

Thermal Insulation Tester

Measures heat retention and energy-saving efficiency under simulated greenhouse conditions, ensuring optimal performance in both summer and winter.

Light Spectrum Analyzer

Analyzes light transmission, diffusion, and spectral distribution to verify that the screen provides uniform illumination and protects crops from excessive radiation.

Tensile Testing Machine

Assesses the mechanical strength and durability of the screen, including warp and weft resistance, elongation, and load capacity.

UV Aging Tester

Simulates long-term UV exposure to evaluate material degradation, color stability, and performance over time.


Video Showcase

Brochure Download 

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FAQs

1. What is an external white screen used for in greenhouses?

An external white screen is used to provide shading, improve light diffusion, reduce heat load, enhance ventilation, and protect crops from harsh weather. It helps maintain stable greenhouse temperatures and supports healthier plant growth.

2. How does the white screen improve light quality for crops?

The white reflective surface scatters sunlight into soft, diffused light, reducing harsh shadows and improving canopy penetration. This creates uniform illumination that enhances photosynthesis and promotes balanced crop development.

3. Can an external white screen reduce greenhouse temperature?

Yes. Its open-structure design allows hot air to escape and reduces solar heat gain. This helps maintain a cooler indoor climate, especially during high-temperature periods.

4. Is the screen effective at retaining heat at night?

When closed at night, the screen minimizes heat loss by reflecting thermal radiation back into the greenhouse. This helps maintain warmer crop temperatures and reduces nighttime stress.

5. What crops benefit most from an external white screen?

Vegetables, flowers, young plants, nurseries, ornamentals, and fruit seedlings benefit from better light diffusion, improved climate control, and enhanced protection from extreme weather.

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