In distributed photovoltaic projects, U-section steel PV mounting systems have become the mainstream option for small and medium-sized rooftop projects thanks to their simple structure, easy installation and cost-effectiveness. As a professional PV mounting manufacturer, Zhongtang Group provides an in-depth analysis of the technical features, applicable scenarios and key selection points of U-section steel PV supports, helping overseas customers make appropriate choices according to project requirements.
The main profile of the U-section steel PV mounting adopts cold-formed steel with a U-shaped cross-section. Its two flanges can directly fit T-bolts or clamps without extra drilling, delivering much higher installation efficiency than traditional C-section steel brackets. The U-section steel PV supports manufactured by Zhongtang Group are made of Q235B or Q355B high-strength steel with hot-dip galvanized surface treatment. The zinc coating thickness exceeds 65 microns, offering an anti-corrosion service life of up to 25 years.
The core advantage of U-section steel PV mounting lies in convenient installation. Zhongtang Group’s U-steel mounting system adopts modular design. Rails, columns, diagonal braces and other components are connected with standard bolts. No on-site welding or cutting is required, cutting the construction cycle by over 30%. For a school rooftop project in Mongolia, constrained by local construction conditions and tight schedules, the U-section steel PV mounting system supplied by Zhongtang Group achieved full installation in only 5 days, nearly halving the construction time compared with conventional bracket solutions. Meanwhile, the open cross-section design of U-section steel facilitates cable routing and later maintenance, lowering the whole life-cycle cost of the system.
In terms of application scenarios, U-section steel PV mounting is especially suitable for small and medium-sized commercial & industrial rooftops and residential rooftop projects. For rooftops with a relatively short span (generally no more than 2 meters) and moderate load, U-section steel brackets demonstrate outstanding economic benefits. Zhongtang Group can deliver matched U-section steel PV mounting solutions for different roof types, including color steel tile, concrete and tile roofs, with multiple installation options such as T-clamp connection, weighted foundation and PV hook fixing. For large-span or high-load projects, Zhongtang Group recommends square tube or H-section steel mounting systems to guarantee structural safety.
Wall thickness and surface treatment quality are the key factors to check during product selection. The wall thickness of Zhongtang Group’s U-section steel PV mounting normally ranges from 2.0 mm to 2.5 mm, and can be increased to 3.0 mm according to load requirements. All profiles undergo strict dimensional inspection and mechanical property testing. Zhongtang Group reminds customers that some low-cost U-section steel brackets on the market suffer from insufficient wall thickness and thin zinc coating. There may be no obvious defects in short-term use, yet deformation and corrosion are likely to occur during long-term operation. It is advisable to choose qualified formal suppliers with test reports. Zhongtang Group can provide complete product test reports and structural calculation documents to support reliable selection of U-section steel PV mounting systems.
