Roofing and cladding products from metal sheet - Specification for self-supporting products of steel, aluminium or stainless steel sheet - Part 2: Aluminium

This document establishes specific technical requirements for self-tapping fasteners used in roofing and cladding applications for metal products. It focuses on components manufactured from aluminum, steel, or stainless steel, providing detailed specifications to ensure performance and compatibility in building envelopes. The standard defines dimensional tolerances, mechanical properties, and surface treatment guidelines relevant to aluminum-based fasteners. These parameters are designed to facilitate consistent quality and safe installation across various construction projects. By addressing material characteristics and functional performance, the text serves as a reference for manufacturers and suppliers involved in the production of fastening systems for metal sheets. It outlines testing procedures and classification criteria that support the selection of appropriate hardware for structural integrity and durability in both roofing and walling scenarios. The content aims to harmonize technical expectations within the industry without addressing broader policy implications or market dynamics.