Outstanding features

  • 9-rib steel sheet design for fast drainage, effective anti-overflow, especially in large-scale, low-slope projects
  • There are sub-waves between the 2 wave legs to increase stiffness, limit deformation during installation and construction
  • Light weight, easy to construct, convenient for storage, moving and installation, saving time

9-rib steel sheet (also known as 9-Rib roofing) is a type of roofing sheet made from rolls of galvanized steel, cold-rolled steel, or colored steel, usually with a raw material width of 1200mm or 914mm. After the rolling process, the finished width ranges from 1070mm or 810mm, with a wave height of about 22–23mm. Thanks to the design of 9 square waves, this type of roofing optimizes water drainage and prevents overflow, making it particularly suitable for large-scale projects with low roof slopes.

9-rib steel sheet can be produced from various raw materials: galvanized steel, cold-rolled steel, color-coated cold-rolled steel, etc., with high strength (G550, G350). Due to its square wave structure, 9-rib steel sheet can withstand strong winds (from level 8 to level 12), and the auxiliary waves between two main waves help increase rigidity, reducing deformation during construction. The length of the roofing sheets can also be cut to requirements, and they come in a variety of colors, providing aesthetic and sustainable solutions for projects.

9-rib steel sheet is popular for roofing and wall cladding in both civil and industrial projects. Examples include single-story houses, shops, factories, offices, warehouses, and public works such as schools, health stations, sports halls, conference centers, etc. Thanks to its 9-wave structure and large purlin spacing, 9-rib steel sheet drains quickly and ensures durability against harsh weather conditions.

In addition to load-bearing and overflow resistance, 9-rib steel sheet is also notable for its lightweight, making it easy to store, move, and install. The auxiliary waves increase rigidity, allowing workers to move on the roofing surface without worrying about deformation. The product is also manufactured in a rich color palette, which can be chosen according to personal preference or feng shui. Furthermore, using 9-rib steel sheet in conjunction with accessories such as self-drilling screws, roof edges, and gutters will enhance aesthetics while ensuring effective drainage, thus prolonging the lifespan of the project’s roof.