Frame and connections
Request steel grade, section schedule, weld procedure and inspection criteria where welding applies. For bolted systems, record fastener grade, connection details and coating repair method. Galvanized coating mass or thickness should match the corrosion environment specified for the project.
Panel and thermal performance
Ask for panel core, thickness, density, U-value and thermal bridge detail. Distinguish material values from complete assembly values. At doors, windows and module joints, installation details can materially change the result.
Fire and local approval
Fire performance claims must identify the tested assembly and report scope. A panel core designation does not prove the full wall, junction and penetration system. The selected supplier and relevant professionals must verify requirements in the destination jurisdiction.