Double-Steel Frame Round-Arch Solar Greenhouse

Ruize manufactures the Double-Steel Frame Round-Arch Solar Greenhouse in China, combining prefabricated steel fabrication with hot-dip galvanizing for overseas agricultural projects. The greenhouse is designed for large planting bases, flower production facilities, fruit and vegetable farms and other projects where both weather resistance and structural capacity need to be considered.

Its main structural feature is the combination of a round arch roof and two parallel steel frames. The curved roof reduces flat surfaces where rain or snow can remain, while the double-frame arrangement provides a reinforced load-bearing structure. Together with the insulated rear section, the system is intended for projects that operate through cold winters or face heavier seasonal weather conditions.

Double-steel Frame for Reinforced Support

Instead of relying on a single arch member, the greenhouse uses two parallel steel arch frames to increase the structural support available across the roof. This configuration provides a practical basis for larger greenhouse dimensions and the addition of selected thermal or environmental-control equipment.

• Parallel double-steel arch frames form the main reinforced structure.
• The frame can be engineered around local wind and snow loads.
• The reinforced structure is suitable for larger greenhouse layouts.
• Equipment loads can be considered during structural planning.

For high-altitude or heavy-snow projects, the final frame specification, arch spacing, foundation and connection details should be determined from the site's actual structural requirements.

Round Arch Roof for Rain and Snow Management

The curved roof creates a continuous arched surface instead of a flat horizontal roof area. This geometry allows rainwater to drain naturally and can encourage snow to slide from the covering under suitable weather conditions, reducing prolonged accumulation on the roof.

Snow behavior still depends on the amount and type of snowfall, outside temperature, wind conditions and roof design. In areas with severe or exceptional snowfall, the greenhouse should be engineered according to the local snow-load requirements and supplemented with appropriate snow-management measures where necessary.

Solar Light and Winter Heat Retention

Curved Roof for Natural Light

The round roof provides a broad light-receiving surface for greenhouse film. PO and EVA films can be selected according to the desired light transmission, temperature range and crop requirements. Suitable diffused films can also be considered where a softer and more evenly distributed light environment is preferred.

This configuration is suitable for plants that require consistent light conditions, including flowers, nursery plants and premium fruits and vegetables. Actual light performance depends on the covering material, roof geometry and local solar conditions.

Rear Thermal Structure

The rear wall and related insulated section provide an additional thermal buffer during winter. Heat entering the greenhouse during daylight can be retained within the growing environment, while the insulated rear structure helps reduce heat loss after sunset.

For colder regions, thermal blankets and heating equipment can be added according to the local minimum temperature and crop requirements. The greenhouse should be treated as a complete thermal system rather than relying on insulation alone for winter temperature control.

Prefabricated Double-steel Assembly

The steel arch components are prefabricated before shipment and assembled with standardized connecting fittings on site. This reduces the amount of cutting and welding required during installation and is particularly useful for overseas agricultural projects where construction resources differ from those available at the manufacturing site.

• Factory-prefabricated structural sections
• Standardized connection components
• Reduced dependence on field welding
• Suitable for modular export packing and container transportation

For larger greenhouse parks, multiple units can be planned together with internal service paths, equipment access and shared environmental-control infrastructure.

Galvanized Steel for Outdoor Use

The main steel structure uses carbon steel with hot-dip galvanized corrosion protection. The treatment is intended to improve resistance to moisture, rain, snow and outdoor oxidation.

Regular inspections should still be carried out on the galvanized coating, connection points, covering material and drainage system, particularly in regions with heavy snowfall, strong winds or high humidity.

Configuration Reference

Environmental-control Systems

The reinforced frame can be combined with thermal and cultivation equipment according to the crop and local climate. The equipment package can remain relatively simple for moderate climates and be expanded for colder operating conditions.

• Electric heavy-duty thermal blanket system
• Automatic ventilation film openers
• Air circulation fans
• Integrated water and fertilizer system
• Winter heating units
• Internal and external shading systems
• Remote temperature and humidity monitoring
• Reinforced rainwater drainage system

For a large connected agricultural park, shared heating, water-fertilizer and environmental-monitoring systems can be incorporated into the overall layout where the project design supports them.

Suitable Applications

The greenhouse is designed for commercial and demonstration projects that need a reinforced structure together with winter crop protection.

• Large agricultural parks in high-altitude and snowy regions
• Premium flower cultivation and propagation bases
• Large-scale fruit and vegetable picking farms
• Smart agriculture demonstration projects
• Nursery and ornamental plant production facilities
• Overwintering cultivation of medicinal plants
• Off-season premium crop production

Planning for Large Connected Greenhouses

Multiple greenhouse units can be arranged into a larger agricultural complex. The layout can take account of service roads, crop transport, equipment placement and access for agricultural machinery, allowing the greenhouse area to function as an integrated production space rather than a collection of independent units.

Where a centralized heating or environmental-control system is required, equipment rooms, distribution routes and greenhouse connections can be planned as part of the overall project.

Overseas Project Delivery

Ruize can coordinate greenhouse frame fabrication, covering materials, structural fittings and selected supporting systems for overseas agricultural projects. The round arch components can be divided into transport-friendly sections and reinforced for long-distance shipment.

Project documentation can include structural drawings, assembly instructions and installation videos. Remote technical assistance can be provided during installation, while replacement frame fittings, greenhouse film and other original components can be supplied for later maintenance.

Maintenance and Service Life

The hot-dip galvanized steel frame is intended for long-term outdoor service under suitable conditions. Maintenance should include periodic inspection of the frame, connection fittings, covering film, drainage paths and environmental-control equipment.

Standardized structural components also make it easier to replace individual fittings or covering materials when necessary. Actual service life depends on local weather exposure, structural loading, corrosion conditions and maintenance practices.

Frequently Asked Questions

What is the difference between a double-steel round arch greenhouse and a conventional round arch greenhouse?

The main difference is the frame arrangement. A conventional round arch structure may use a single main arch, while this configuration uses two parallel steel arch frames to provide a reinforced load-bearing system. This makes it more suitable for projects requiring greater structural capacity or larger dimensions.

Can this greenhouse be used in heavy-snow areas?

Yes. The round arch roof helps reduce flat snow-bearing surfaces, while the double-steel structure provides additional structural support. However, the final design must still be calculated according to the actual local snow load, wind conditions, span and foundation requirements.

Can a centralized heating system be used for several connected greenhouses?

Yes. For a large connected project, the heating equipment and distribution layout can be planned as a unified system. The final arrangement depends on greenhouse size, local climate, required indoor temperature and heating capacity.

Is the round arch structure suitable for flower and premium fruit cultivation?

Yes. The greenhouse can use suitable PO or EVA films and can be combined with shading, ventilation and environmental-control systems. These configurations allow the light and climate environment to be adjusted around the requirements of different crops.

Can the greenhouse be customized for high-altitude projects?

Yes. Structural dimensions, frame spacing, covering materials, drainage and environmental-control equipment can be selected according to the site's elevation, wind, snow, temperature and UV conditions. Site-specific structural design is recommended for demanding locations.