The external shade system for multi-span greenhouses is installed on the top of the greenhouse.
Its main purpose is to reduce excessive sunlight entering the greenhouse and provide cooling effects, especially in the summer.
External Shading System - Shade Net Rolled-up
External Shading System - Shade Net Expanded
Key Benefits:
1. Shade Protection
When the greenhouse is exposed to intense sunlight, the shade net is deployed to block most of the sunlight from entering, preventing crops from being scorched by direct sunlight.
2. Cooling
During the hot summer months, the external shade net on the roof can effectively reduce the greenhouse temperature by 6-9°C.
With additional ventilation and cooling systems, the temperature can be lowered even further, creating a cooler, more comfortable environment.
3. Optimal Light for Different Crops
The external shade system uses different types of shade nets with varying levels of shading, to meet the specific light requirements of different crops.
For example, crops like celery and edible fungi require a shaded environment to grow better.
System Components:
The system consists of a frame, shade net, and drive mechanism.
The shade net is fixed onto the external frame and can be extended or retracted horizontally. It can be fully deployed or partially opened, depending on the needs.
The drive motor powers the system to adjust the shade net, which can be fully deployed or partially opened, based on the needs.
A smart control module can be added for automatic operation.
Why Use External Shade?
During strong sunlight, especially in summer, excess sunlight can scorch plant leaves and increase greenhouse temperatures, which can harm plant growth. In severe cases, it may even lead to growth inhibition or death.
The external shade net provides a cool, shaded environment, limiting the amount of sunlight and making the greenhouse temperature more comfortable.
Choosing the Right Shade Net:
Shade Percentage
The shade percentage indicates how much light is blocked by the shade net. Different crops require different amounts of light:
Sun-loving crops (e.g., tomatoes, peppers) typically need a shade net with 30-50% shading during the hot summer months.
Shade-tolerant crops (e.g., celery, edible mushrooms) require a shade net with 60-80% shading or even higher. Choose the right shade net based on your plant’s needs.
External Shading System - Partially Expanded Shade Net
Material and Durability
The material of the shade net determines its lifespan. Common materials include polyethylene (PE) and polypropylene (PP). PE nets are highly resistant to aging and have a long service life.
We offer customized, cost-effective solutions to fit your greenhouse's needs and ensure reliable, long-lasting results.
