BS EN 508-1-2009 pdf download.Roofing products from metal sheet Specification for self- supporting products of steel, aluminium or stainless steel sheet Part 1: Steel.
The BS EN 508-1 applies to all discontinuously laid self-supporting external profiled sheets for roofing 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.
No requirements for supporting construction, design of roof system and execution of connections and flashings are included.
2 Normative references
The following referenced documents are indispensable for the application 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 10143, Continuously hot-dip coated steel sheet and strip – Tolerances on dimensions and shape
EN 10169-1:2003, Continuously organic coated (coil coated) steel flat products – Part 1: General information (definitions, materials, tolerances, test methods)
EN 10169-2, Continuously organic coated (coil coated) steel flat products – Part 2: Products for building exterior applications
EN 10169-3, Contiouously organic coated (coil coated) steel flat products – Part 3: Products for building interior applications
EN 10326, Continuously hot-dip coated strip and sheet of structural steels – Technical delivery conditions
EN 10327, Continuously hot-dip coated strip and sheet of low carbon steels for cold forming – Technical delivery conditions
EN ISO 6270-1, Paints and varnishes – Determination of resistance to humidity – Part 1: Continuous condensation (ISO 6270-1:1998)
EN ISO 6988, Metallic and other non-organic coatings – Sulfur dioxide test with general condensation of moisture (ISO 6988:1985)
EN ISO 9227, Corrosion tests in artificial atmospheres – Salt spray tests (ISO 9227:2006)
3 Terms and definitions, symbols and abbreviations
For the purposes of this standard, the terms and definitions given in EN 10169-1 and the following apply.
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), and transmit these loadings to spaced structural supports
3.2 Materials
3.2.1
hot-dip zinc coated steel sheet (type Z)
product obtained by continuously hot-dip zinc coating cold reduced strips of either low carbon steel for cold forming or steel of structural quality
NOTE I For steel of structurally quality, see EN 10326; for low carbon steel for cold forming, see EN 10327. NOTE 2 A new standard (prENlO346) that will merge EN 10326 and EN 10327 is currently in preparation.
3.2.2
hot-dip 5 % Al-Zn coated steel sheet (type ZA)
product obtained by continuously hot-dip coating cold reduced strips of low carbon steel for cold forming or
steel of structural quality on a production line using an alloy consisting of zinc and approximately 5 %
aluminium (nominal percentage by mass)
NOTE 1 For steel of stwcturally quality, see EN 10326: for low carbon steel for cold forming, see EN 10327. NOTE 2 A new standard (prENlO346) that will merge EN 10326 and EN 10327 is currently in preparation.
3.2.3
hot-dip 55 % Al-Zn coated steel sheet (type AZ)
product obtained by continuously hot-dip coating cold reduced strips of low carbon steel for cold forming or steel of structural quality on a production line using an alloy consisting of:
— 55 % aluminium (nominal percentage by mass):
— 1,6 % silicon (nominal percentage by mass):
— and the balance zinc
NOTE 1 For steel of structurally quality, see EN 10326: for low carbon steel for cold forming, see EN 10327.
NOTE 2 A new standard (prENlO346) that will merge EN 10326 and EN 10327 is currenUy in preparation.
3.2.4
hot-dip aluminium coated steel sheet (type A)
product obtained by continuously hot-dip aluminium coating cold reduced strips of low carbon steel for cold forming steel or steel of structural quality on a production line
3.2.5
organic coated steel sheet
product obtained by factory application of paint by roller or spray processes, or factory application of laminated organic film, on substrates of type Z, type ZA, type AZ or type A coated steel sheet
NOTE 1 EN 10169-1 refers to this type of coated steel.
NOTE 2 A new standard (prEN 10169) that will merge EN 10169-1, -2 and -3 is currently in preparation.
3.2.6
multflayer coated steel sheet
product obtained by continuously coating on both sides hot-dip zinc coated cold reduced strips of low carbon steel for cold forming or steel of structural quality with one or multiple applications of thermoplastic asphalt compounds (minimum thickness 1,5 mm) and subsequent lamination of a metal foil with or without decorative painting
NOTE See Annex B.
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, webs and valleys may be stiffened.BS EN 508-1-2009 pdf download.