For agricultural projects where ventilation is a major part of greenhouse design, Ruize Steel offers the Double-sided Sawtooth-type Multi-span Greenhouse as a China supplier of sawtooth greenhouse structures. The double-sided roof arrangement provides high-level openings on both sides of each sawtooth section, creating additional routes for warm and humid air to leave the growing area when the vents are open. The connected multi-span layout forms a larger cultivation space that can be divided into different crop and management zones.
The greenhouse can combine natural ventilation with side ventilation, shading, fans, cooling and irrigation systems according to the climate and crop. Frame dimensions, vent arrangement, covering material and structural reinforcement can also be selected according to local weather conditions and the requirements of the installation site.
Vent openings on both sides of the sawtooth roof provide additional paths for heat and moisture to escape.
High-level roof ventilation works with lower side openings to support natural air movement through the growing area.
Connected spans create a continuous cultivation area suitable for organized crop production.
Hot-dip galvanized steel components provide corrosion protection for outdoor agricultural applications.
PO agricultural film can be selected according to crop, light and local climate requirements.
Shading, fans, cooling, irrigation, fertigation and environmental monitoring systems can be added according to the project.
The sawtooth roof places ventilation openings at an elevated position where warm air naturally accumulates. When the roof vents and side ventilation openings are operated in combination, outside air can enter through lower openings while warmer air moves toward the upper vents. This creates a practical natural ventilation route within the greenhouse.
The actual air exchange rate depends on the greenhouse dimensions, vent opening area, side ventilation, outside wind conditions and the operating position of the vents. For this reason, the ventilation arrangement should be designed according to the local climate and greenhouse layout rather than assuming the same performance in every project.
The Double-sided Sawtooth-type Multi-span Greenhouse can be configured for different protected cultivation applications, including:
● Leafy vegetables and common fruit vegetables ● Vegetable and fruit seedling production ● Flowers and potted plants ● Selected high-value horticultural crops ● Protected cultivation and agricultural demonstration projects
The final greenhouse configuration should be matched to the crop's requirements for temperature, humidity, light and ventilation.
| System | Main Function |
|---|---|
| Roof Ventilation | Provides additional high-level air exchange |
| Side Roll-Up Ventilation | Allows outside air to enter through the greenhouse sides |
| External Shading | Reduces excessive solar radiation during hot periods |
| Circulation Fans | Supports internal airflow when additional air movement is required |
| Fan and Pad Cooling | Provides active cooling for suitable climate conditions |
| Irrigation and Fertigation | Delivers water and nutrients according to crop requirements |
| Environmental Monitoring | Monitors selected temperature, humidity and other growing conditions |
The structure should be configured according to the installation location, greenhouse dimensions, crop requirements and local environmental loads. Important factors include:
● Overall greenhouse width and length
● Span and bay spacing
● Eave and ridge height
● Roof ventilation arrangement
● Vent opening size and operating method
● PO film covering requirements
● Local wind conditions
● Snow load where applicable
● Rainfall and drainage requirements
● Required shading, cooling and irrigation systems
The double-sided roof arrangement provides more flexibility when managing heat and humidity than a greenhouse relying only on lower side ventilation. Roof openings can be operated according to weather conditions, while shading and mechanical cooling can be added when natural ventilation alone is not sufficient.
The multi-span layout also allows cultivation areas to be organized into separate zones for different crops, planting schedules or irrigation requirements. This can help simplify day-to-day crop management within larger greenhouse projects.
PO agricultural film can be used as the primary greenhouse covering where its light and climate characteristics suit the project. The roof and gutter structure should be designed together with the local rainfall conditions to guide collected water toward the designated drainage system.
The greenhouse consists of modular structural components designed for on-site installation. Regular maintenance should focus on the frame, roof ventilation mechanism, film fixing points and auxiliary systems.
● Inspect structural connections and galvanized components.
● Check roof vents and opening mechanisms regularly.
● Inspect film fixing points and replace damaged covering when necessary.
● Maintain shading, ventilation and cooling equipment.
● Check irrigation and fertigation systems according to the operating schedule.
● Double-sided high-level sawtooth ventilation design
● Multi-span structure for continuous protected cultivation space
● Hot-dip galvanized steel frame
● PO film covering options
● Compatible with shading, cooling, irrigation and monitoring systems
● Project-based configuration for different crops and site conditions
It is a multi-span greenhouse with high-level ventilation openings arranged on both sides of the sawtooth roof. The design provides additional routes for heat and humid air to leave the growing area when the vents are open.
The main advantage is greater flexibility in high-level ventilation. The roof vents can work with side ventilation to improve air exchange according to weather conditions and the greenhouse layout.
Yes. The high-level ventilation design is suitable for projects where heat and humidity management are important. Shading, fans or cooling systems can be added when additional climate control is required.
Yes. Electric opening systems can be configured where required. The motor, control system and opening method depend on the project design.
It can be configured for vegetables, seedlings, flowers, potted plants and other protected horticultural crops. The equipment should be selected according to the environmental requirements of the crop.
Yes. External shading, circulation fans, fan-and-pad cooling, irrigation, fertigation and environmental monitoring can be integrated according to the project.
Yes. The greenhouse dimensions, span, height, ventilation arrangement, covering material and auxiliary systems can be configured according to the site and production requirements.
Please provide the greenhouse size, installation location, crop type, preferred covering material, ventilation requirements, local wind and snow conditions where applicable, and any shading, cooling or irrigation systems required.
Send Ruize Steel your greenhouse dimensions, installation location, crop type and required environmental control systems to receive a suitable Double-sided Sawtooth-type Multi-span Greenhouse configuration.
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