boltless - EN
Roofing & Walling
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Roofing & Walling

Boltless System


For economical and cost-effective alternative with concealed-fixing method for increasing drainage capacity and waterproof, in response to various designs and the building's appearance, our company would like to offer the steel roofing and walling profile with the benefits as followings:

  • Variety of profiles which suitable for roofing, walling and ceiling application
  • Due to strength, profile ability for long support spacing
  • Flexible to curve
  • Lightweight, easy to install, and time saving
  • Minimum roof slope up to 1 degree, long length and higher rib in order to increase waterproof
  • Custom length as required and On-site roll forming without end lap also available
  • Highly Corrosion-resistant and durable coated steel for longer lasting building
  • Roof insulation system provides cool condition and energy saving


  • Variety of profiles for selecting
  • Boltless system (Concealed-fixing method) is suitable for applications
  • Available for straight sheet, curved or convex-concave curve
  • Rolled-form from High-tensile steel, min: yield strengths are G550 (550MPa) or G300 (300MPa), aluminum/zinc alloy-coated steel and clean colorbond prepainted steel