BS/EN 508-2-2019 pdf download.Roofing and cladding products from metal sheet- Specification for self-supporting products of steel, aluminium or stainless steel sheet Part 2: Aluminium.
This BS/EN 508-2 applies to all discontinuously laid self-supporting external profiled sheets for 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.
This document does not cover products for structural purposes, i.e. it does cover products used in structural class Ill (according to EN 19991-4). 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).
No requirements for supporting construction, design of roof system and execution of connections and tiashings are included.
2 Normative references
The rollowing documents are retrred to in the text In such a way that some or all ot their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 485-4, Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on shape and dimensions for cold-rolled products
EN 1396, Aluminium and aluminium alloys — Coil coated sheet and strip for general applications — Specifications
EN 14782, Self-supporting metal sheet for roofing, external cladding and internal lining — Product specification and requirements
EN ISO 7599, Anodizing of aluminium and its alloys — Method for specifying decorative and protective anodic oxidation coatings on aluminium (ISO 7599)
3 Terms and definitions, symbols and abbreviations
3.1 General
For the purposes of this document, the terms and definitions given in EN 485-1 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:J/www.electropedia.org/
— ISO Online browsing platform: available at http:/Jwwo.org/obp
NOTE Wherever the term aluminium is used it is meant unalloyed or alloyed aluminium.
3.1.1
self-supporting product
product which will, by virtue of its material and shape, support all applied loadings (e.g. snow, wind. foot traffic, insulation, membrane), and transmit these loadings to spaced structural supports
32 Material definitions
3.2.1
temper
material conditions after a production stage, for example mechanical treatment and/or heat treatment, intended to give the material physical and/or metallurgical properties
3.2.2
organic coated aluminium sheet
painted, post coated, laminated or coil coated (continuously organic coated) aluminium on one or on both sides
3.2.3
anodized aluminium sheet
aluminium with an anodic coating, produced by an electrolytic oxidation process in which the surface of the aluminium is converted to a mainly oxide coating having protective, decorative or functional properties
3.3 Profile definitions
3.3.1
trapezoidal profiled sheet
self-supporting sheet which is designed to allow it to be side and end lapped, the crowns of which may be rounded and, in addition, the crowns, web and valley may be stiffened
Note I to entry: See Figures 2,3, 4 and 5.
4 Requirements
4.1 General
The product shall be manufactured from materials complying with 4.2.
The supplier of the materials is responsible for carrying out the tests necessary to verify that the materials supplied to the manufacturer comply with the requirements and should provide appropriate inspection documents (according to EN 10204) on request.
NOTE The symbols and abbreviations to be used to designate the aluminium alloy, the type and thickness of the organic coating are those of (he standards referred to in Clause 2.
Product testing shall be provided to a defined schedule. A permanent quality system shall be adopted by the manufacturer1).
4.2 Materials
4.2.1 Aluminium
Aluminium alloys given in Table 1 are suitable provided that their properties conform to the values given in the relevant material standards (EN 485-2. EN 573-3).
BS/EN 508-2-2019 pdf download
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