Sheet steel roofing JI 90-400

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Overview The JI 90-400 is a structural steel tray designed for double-skin roofing systems. It ensures optimal load distribution and secure cladding fixation. Its horizontal installation supports efficient integration of thermal insulation and is compatible with spacers to enhance insulation performance. Available in customizable lengths and finishes to meet architectural and industrial project requirements.

Key advantages

• Optimal load distribution for double-skin roofing
• Secure fixation of cladding
• Horizontal installation facilitating thermal insulation integration
• Compatible with spacers to improve insulation efficiency
• Customizable dimensions and finishes according to project needs

Available finishes

• Interieurcoating 912 (15 µ): base coating for interior building applications only
• Galva: galvanized finish

Technical characteristics / specifications

• Dimensions: Length: Min. 1000.0 mm / Max. 13600.0 mm
  Width: Max. 400.0 mm
• Thickness and weight: 0.75 mm = 9.57 kg/m²; 0.88 mm = 11.23 kg/m²; 1.00 mm = 12.76 kg/m²
• Material: Steel S320 GD
• Reference standards: Galvanized steel — NF EN 10346:2015 (tolerances per NF EN 10143:2006 - NF P34-310:2017); Coil coating — NF EN 10169:2022 (NF P34-301:2017); Tolerances — NF EN 14782:2006 / NF EN 508-1:2021; Calculations and tests — according to NF P 34-503-1:2024 interpreted per NF P 34-205-1:1997 (DTU 40.35) for roofing application and NF DTU 43.3 P1-2:2008 and CSTB handbook 3537_v2:2009 for roof covering application