What is BS EN 508‑2 – Roofing and cladding products from metal sheets about?
BS EN 508‑2 is the second part of the EN 508 multi-series that discusses roofing and cladding products from metal sheets. BS EN 508‑2 specifies requirements for self-supporting external profiled sheets for the roof covering, wall cladding, lining and liner tray products for discontinuous laying made from aluminium sheets with or without surface treatment (additional organic coatings or anodising).
BS EN 508‑2 applies to all discontinuously laid self-supporting external profiled sheets for the roof covering, wall cladding, lining and liner trays with the exception of tiles with a surface area less than 1 m2 and produced by stamping. These profiled roof sheets are designed to keep wind, rain and snow out of the building, and to transfer any resultant loads and infrequent maintenance loads to the structure.
BS EN 508‑2 does not cover products for structural purposes, i.e., it does cover products used in structural class III (according to EN 1999-1-4), it does not cover products used in constructions of Structural Classes I and II (according to EN 1999-1-4) intended to contribute to the global or partial stability of the building structure by providing racking resistance or resistance of permanent static loads (excluding self-weight of the metal sheet).
Who is BS EN 508‑2– Roofing and cladding products from metal sheets for?
BS EN 508‑2 on the specification for self-supporting products of aluminium sheet is useful for:
- Roofing and cladding companies
- Metalwork companies
Why should you use BS EN 508‑2– Roofing and cladding products from metal sheets?
Metal roofing and cladding help protect the exterior of building structures from weathering and also gives them an aesthetic appeal. This means that these metal sheets endure the weathering effects over the course of their lifespan and need to be produced with quality and durability as the top priority.
BS EN 508‑2 establishes general characteristics, definitions, classifications and labelling for the products, together with requirements for the materials from which the products can be manufactured. If you are a manufacturer BS EN 508‑2 helps you to ensure that your products comply with the minimum requirements necessary to commercialize them. BS EN 508‑2 with its marking and labelling guidelines also enables your consumers to select products that suit their requirements.
Overall, BS EN 508‑2 specifies the requirements for aluminium roofing sheets that enable them to meet all normal service conditions and also improve their quality.
What’s changed since the last update?
BS EN 508‑2:2019 supersedes EN 508-2:2008. In comparison with EN 508-2:2008, the major changes in BS EN 508‑2:2019 are as follows:
- Scope of the standard has been extended to cladding products.
- Reference has been added to anodised aluminium sheets as well as to the A1 EU-classification without further testing of aluminium products in accordance with Commission decision 2010/737/EC.