

For photovoltaic projects on flat concrete roofs, this ballast-type bracket, employing key stainless steel components, offers a fixing solution that balances installation efficiency and long-term reliability. The main body of the system is pre-assembled in the factory; on-site installation simply requires placing concrete blocks for fixation, completely eliminating the need for drilling holes in the roof. The stainless steel bolts, connectors, and other core components provide excellent corrosion resistance in humid, rainy, or coastal environments. The overall structure supports custom tilt angles of 10°, 15°, and 20° to flexibly adapt to the varying sunlight requirements of different regions. Whether for large-scale power plants in industrial and commercial buildings or small systems for private villas, this bracket enables rapid deployment of photovoltaic panels without altering the original roof structure.
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 portsProduct Description
This "Flat Roof PV Mounting Bracket - Simplified Ballast (Stainless Steel)" is a solar panel installation solution designed for flat concrete roofs. Its core design concept utilizes the gravity of concrete blocks placed on the bracket base to secure the entire system, eliminating the need for drilling into the roof and achieving a non-penetrating installation. The entire system employs a modular design, with the main structure pre-assembled at the factory, simplifying the on-site assembly process. Key connecting components are made of stainless steel (such as SUS304) to ensure long-term durability in outdoor environments.

Product Components

Advantage
▶ Roof Integrity Protection:
As a non-penetrating installation solution, this system avoids drilling into the roof. This design helps mitigate the risk of waterproofing failure and leaks caused by perforation, thus better protecting the original structural integrity of the roof.
▶ Weather Resistance and Long Lifespan:
Key components such as fasteners and connectors in the system are made of 304 stainless steel, possessing excellent corrosion resistance and adaptable to various outdoor environments. The overall system lifespan is generally over 25 years.
▶ Convenient and Efficient Construction:
The main support structure employs a modular design and highly pre-assembled process, with most preparation work completed in the factory, significantly simplifying the on-site installation process and helping to save construction time and labor costs.
▶ Flexible Maintenance and Expansion:
Because no permanent fixing devices are used, the ballast system can be relatively easily disassembled and reinstalled when roof repairs or system maintenance are required. Its modular design also facilitates future system expansion.
Parameters
| Installation | Ground/Concrete Roof |
| Wind Load | up to 60m/s |
| Snow Load | 1.4kn/m² |
| Tilt Angle | 10°, 15° , 20° |
| Standards | GB50009-2012, EN1990:2002, ASCE7-05, AS/NZS1170, JIS C8955:2017 |
| Material | Anodized Aluminum AL6005-T5, Stainless Steel SUS304 |
| Warranty | 10 Years Warranty |
Applicable Scenarios
▪ Commercial and Industrial Buildings: Widely used in solar energy projects on large flat concrete roofs such as shopping malls, office buildings, and factory workshops.
▪ Roofs Where Perforation Is Not Permitted: Particularly suitable for buildings with special waterproofing layers or where property management regulations strictly prohibit any drilling operations on the roof.
▪ Residential PV Systems: For suitable flat roofs in villas or self-built houses, this system is also a simple residential PV solution.
Important Notes:
▶ Pre-installation Structural Assessment:
Before installation, a professional assessment of the roof's actual load-bearing capacity is required. Excessive ballast can cause roof structural problems; therefore, the required ballast weight and distribution must be determined through calculations.
▶ Waterproofing Layer Protection:
Although the system does not require drilling, rubber pads or protective mats must still be laid under the direct contact points between the brackets and the roof during bracket placement to distribute pressure and protect the waterproofing layer from abrasion.
▶ Design Review:
For photovoltaic projects using this type of bracket, suppliers should be required to provide detailed structural calculations and wind tunnel test reports to ensure the design meets local climatic requirements.
Summary
The Flat Roof PV Bracket - Simplified Ballast (Stainless Steel) is a mature product focused on solving the pain points of flat roof PV installation. It achieves zero-perforation installation on the roof through physical ballast, while stainless steel as the core material ensures long-term system reliability. Its modular and pre-assembled design effectively reduces on-site construction difficulty, and its robust structure and flexible installation make it an ideal choice for commercial, industrial, and residential flat roof PV projects.
Solar First Project Reference
Related Knowledge Points