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11
2026
-
06
Research and Application of Key Technologies for Integrated Metal Roofing Systems Resistant to Strong Winds and Heavy Rainfall
On July 20, 2025, the China Steel Structure Association convened in Beijing a scientific and technological achievement evaluation meeting for the project “Research and Application of Complete Key Technologies for Metal Roofing Systems Resistant to Strong Winds and Rain,” which was completed by OHC Construction Group Co., Ltd., Beijing University of Technology, Fujian Ningde Nuclear Power Co., Ltd., Ruitai Architectural Technology (Beijing) Co., Ltd., Zhong’an Xianghe (Tianjin) Construction Engineering Co., Ltd., China Academy of Building Research Co., Ltd., Zhejiang Provincial Architectural Design Institute Co., Ltd., Tianjin University, and other institutions. The evaluation experts (list attached) reviewed the technical documentation, listened to the project report, and after questioning and discussion, reached the following evaluation conclusions:
I. The submitted evaluation materials are complete, detailed, and in compliance with the evaluation requirements.
II. With regard to the key technologies for enhancing the resistance of metal roofing systems to severe wind and rain, the project team conducted systematic and in-depth research, yielding the following major innovative achievements:
1. A 360° laminated standing-seam metal roofing system was proposed, and an on-site continuous pre‑glazing process was developed, achieving Class I waterproofing performance for single‑layer metal roofs without the use of waterproof membranes. In addition, a high‑profile metal roofing system was engineered to meet the stringent requirements for withstanding severe typhoons.
2. An innovative high‑load‑capacity, low‑friction, slip‑type support has been developed, with a sliding stroke exceeding 60 mm and an ultimate tensile capacity of over 7.0 kN per unit. This solution effectively addresses the challenges of resisting thermal expansion and contraction as well as wind uplift in metal roofing systems.
3. Standardized construction details and fabrication‑installation procedures have been developed for key nodes such as ridge lines, eaves gutters, daylighting strips, and perforated pipes, thereby resolving the challenge of ensuring watertightness in 360° laminated standing‑seam metal roofing systems.
III. The project has been granted 12 national patents (including 7 invention patents) and two provincial-level construction methods. Its research findings have been incorporated into five national, industry, and association standards, and four academic papers have been published. The project’s outcomes have been applied to over one hundred projects, including the Ningde Nuclear Power Plant and the Hebei Intelligent Manufacturing Industrial Park, yielding significant socio-economic and environmental benefits and demonstrating broad prospects for future application.
The evaluation committee concluded that the project’s outcomes generally meet international advanced standards, with the 360° laminated standing-seam metal roofing system and the high‑load‑capacity, low‑friction slip‑type support technology reaching an internationally leading level.
360° Laminated Standing-Seam Metal Roofing System,Slidable bracket,National Patent
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