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The Mini Rail with rail clamps is a non-penetrating photovoltaic (PV) installation system specifically designed for metal roofs. Its core feature is the replacement of traditional continuous long rails with short aluminum alloy rails (Mini Rails), which are then clamped and secured to the crests of the corrugated steel roof using specialized clamps, eliminating the need for drilling into the roof. This design avoids the risk of leaks associated with drilling, while providing a lightweight and stable support platform for the PV modules.
Color :
Natural silver/ black（Colored according to customer requirements）Certification :
ISO，SGS，CEMaterial :
Anodized Aluminum 6005 T5, Stainless Steel 304Product Origin :
Tianjin, FujianShipping Port :
Shanghai, Ningbo, Tianjin, Xiamen, Shenzhen ports
Product Description
Mini Rail Clamps is a non-penetrating photovoltaic (PV) installation system designed specifically for metal roofs. This system uses short aluminum alloy rails (Mini Rails) instead of traditional continuous long rails, and these rails are clamped and fixed to the crests of the corrugated steel roof using special clamps, eliminating the need for drilling into the roof. This design avoids the leakage or corrosion problems that can occur with drilling, while providing a lightweight and stable support base for the solar modules. The system has a simple structure and modular components, making it suitable for various standard metal roofs.
Product Components
Advantage
▪ Reduced risk of leakage
The system uses clamps for secure fixing, eliminating the need for drilling into the corrugated steel roof. This prevents potential leaks and corrosion caused by drilling, protecting the roof's integrity and waterproofing layer.
▪ Savings on material costs
The short guide rail design reduces aluminum usage compared to traditional long rail solutions, making logistics more economical.
▪ High installation efficiency
Modular components eliminate the need for on-site cutting. The clamps and guide rails simplify installation, reducing on-site construction time.
▪ Roof load-friendly
The system's lightweight design reduces the load on existing roofs, making it particularly suitable for buildings with limited load-bearing capacity.
▪ Flexible layout
Supports horizontal or vertical installation of photovoltaic modules, adaptable to various standard metal roof layouts.
Parameters
| Installation | Metal Roof |
| Wind Load | up to 60m/s |
| Snow Load | 1.4kn/m² |
| Tilt Angle | Parallel to Roof Surface |
| Standards | GB50009-2012, EN1990:2002, ASCE7-05, AS/NZS1170, JIS C8955:2017, GB50429-2007 |
| Material | Anodized Aluminum AL6005-T5, Stainless Steel SUS304 |
| Warranty | 10 Years Warranty |
Applicable Scenarios
▪ Industrial and commercial buildings: Large-area standard metal roofs for factories, warehouses, logistics centers, etc.
▪ Existing building renovation: Suitable for adding photovoltaics without damaging the original waterproofing layer.
▪ Agricultural facilities: Light steel roofs for agricultural greenhouses, livestock farms, etc.
▪ New construction projects: Simultaneous installation of photovoltaic support systems in new factory buildings.
Important Notes:
▶ Tile Matching
Before installation, confirm the specific type of corrugated steel sheet (e.g., angle-seam, standing seam, trapezoidal corrugated, etc.) and select the corresponding clamp specifications.
▶ Installation Specifications
During construction, ensure the clamps are correctly engaged at the crests of the corrugations, and the bolt torque must meet design requirements to ensure reliable clamping.
▶ Load Verification
Although the system is relatively lightweight, it is still recommended that a professional assess the current condition of the roof and wind and snow loads.
▶ Construction Safety
Proper safety precautions must be taken when working at heights.
Summary
The Mini Rail system for corrugated steel roof photovoltaic brackets employs a non-penetrating installation method with clamps and a short guide rail design, achieving a good balance between reducing the risk of drilling into the roof, controlling material costs, and improving installation efficiency. It is suitable for commercial, industrial, and agricultural photovoltaic projects on standard metal roofs, and is particularly well-suited for scenarios with high requirements for roof waterproofing integrity.
Solar First Project Reference
Related Knowledge Points
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