A Practical Guide from Green Triangle for Productive, Climate-Smart Farms
Why Wallbound Greenhouses?
In regions with land or energy limitations, the wall-bound greenhouse—also known as a lean-to or sun-facing greenhouse—is an intelligent and highly efficient solution for growing crops. Attached to an existing structure, it uses the wall for structural support and thermal mass, helping maintain consistent temperatures throughout the year.
At Green Triangle, we provide full-service greenhouse projects in over 60 countries—covering design, manufacturing, installation, agronomic support, and turnkey project contracting. Here’s a step-by-step breakdown of how to build a productive wallbound greenhouse.
1. Selecting Location and Wall Orientation
For maximum solar exposure, a wallbound greenhouse should be aligned along a south-facing wall (in the Northern Hemisphere). The existing wall acts as a natural thermal buffer, helping to retain heat during cold nights.
Ensure the site:
- Has good drainage
- Is easily accessible for installation and long-term monitoring
2. Choose a Sturdy, Climate-Appropriate Greenhouse Cover
The greenhouse cover（https://www.greenhousetech.cn/about-us/trustpass-profile/） affects light transmission, temperature retention, and humidity control. Choose the material based on local climate:
- Plastic film (PE/PVC) – UV-resistant and affordable for mild regions
- Polycarbonate sheets – Strong insulation and impact resistance, ideal for cold or windy areas
- Glass – Maximum light transmission, great for mild to subtropical environments
Green Triangle manufactures multi-layer greenhouse cover materials tailored to your growing needs and climate.
3. Construct a Tunnel Structure That Integrates with the Wall
Most wallbound greenhouses adopt a semi-tunnel design, with a curved or angled roof connected to the wall. This configuration enhances:
- Natural ventilation
- Rainwater drainage
- Snow/wind load-bearing performance
Our in-house engineers provide 3D design drawings and structural calculations to ensure safe and efficient builds.
4. How to Design a Greenhouse Irrigation System
A stable greenhouse irrigation system is key to crop success. For wallbound greenhouses, common systems include:
- Drip irrigation for row crops
- Overhead sprinklers or misters for leafy greens
- Automatic timers for water efficiency
Green Triangle offers solar-powered smart irrigation systems（https://www.greenhousetech.cn/products/agricultural-equipment/） that integrate with climate controls and fertigation—helping you save water and labor.
5. Ventilation, Shading, and Automation
To maintain a consistent growing environment, integrate:
- Roof or side ventilation systems
- Shading nets or blackout curtains
- Sensors for temperature and humidity
- Intelligent controllers for automation
These systems create a stable microclimate, especially useful for high-value crops like herbs, strawberries, or nursery plants.
Partner with Green Triangle for Design & Support
Whether you’re building a small backyard wallbound greenhouse or a large commercial tunnel greenhouse（https://www.greenhousetech.cn/products/tunnel-greenhouse/）, Sichuan Green Triangle offers:
- Customized design and material supply
- Installation guidance and on-site technician training
- Global shipping and weather-adapted solutions
- Greenhouse irrigation system planning and optimization
👉 Visit www.greenhousetech.cn to explore your wallbound greenhouse options, request a free consultation, or download technical specifications today.