SIST EN 508-1:2021
(Main)Roofing and cladding products from metal sheet - Specification for self-supporting products of steel, aluminium or stainless steel sheet - Part 1: Steel
Roofing and cladding products from metal sheet - Specification for self-supporting products of steel, aluminium or stainless steel sheet - Part 1: Steel
This part of EN 508 specifies requirements for self-supporting roofing, covering, wall cladding, lining, liner tray and tile products for discontinuous laying made from metallic coated steel sheet with or without additional organic coatings. Sheets intended to be used with insulation and membranes are also covered.
This document establishes general characteristics, definitions, classifications and labelling for the products, together with requirements for the materials from which the products can be manufactured. It is intended to be used either by manufacturers to ensure that their products comply with the requirements or by purchasers to verify that the products comply when purchased before they are despatched from the factory. It specifies the requirements for products which enable them to meet all normal service conditions.
This document applies to all discontinuously laid self-supporting external profiled sheets for roofing 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 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 constructions of structural Class III (according to EN 1993 1 3), it does not cover products used in constructions of structural Classes I and II (according to EN 1993 1 3) intended to contribute to the global or partial stability of the building structure by providing racking resistance or resistance to permanent static loads (excluding self-weight of the metal sheet).
No requirements for supporting construction, design of roof, cladding, lining, tile system and execution of connections and flashings are included.
Dachdeckungs- und Wandbekleidungsprodukte aus Metallblech - Spezifikation für selbsttragende Dachdeckungsprodukte aus Stahlblech, Aluminiumblech oder nichtrostendem Stahlblech - Teil 1: Stahl
Dieser Teil von EN 508 legt Anforderungen an selbsttragende Dachdeckungsprodukte, Dachbekleidungs-produkte, Außenwandbekleidungsprodukte, Fassadenpaneel , Kassettenprofil und Dachpfannenprodukte zur überlappenden Verlegung fest, die aus Stahlblech mit metallischem Überzug, mit oder ohne zusätzliche organische Beschichtung, gefertigt wurden. Metallbleche zur Verwendung in Verbindung mit Wärmedämmung und Membranen werden ebenfalls behandelt.
Dieses Dokument legt die allgemeinen Merkmale, Definitionen, Klassifizierungen und die Etikettierung für die Produkte fest sowie die Anforderungen an die Werkstoffe, aus denen die Produkte hergestellt werden können. Es ist dafür bestimmt, entweder vom Hersteller verwendet zu werden, um sicherzustellen, dass seine Produkte den Anforderungen entsprechen, oder vom Käufer, um zu überprüfen, ob die Produkte den Anforderungen entsprechen, bevor sie das Werk verlassen. Es legt die Anforderungen an Produkte fest, unter denen diese allen üblichen Einsatzbedingungen gerecht werden können.
Dieses Dokument gilt für alle außen verwendeten, überlappend verlegten, selbsttragenden Profilbleche für Dachdeckungen, Dachbekleidungen, Außenwandbekleidungen, Fassadenpaneele und Kassettenprofile; sie gilt nicht für Dachpfannentafeln mit einer Oberfläche < 1 m2 und gepresste Dachpfannen. Diese Profilbleche sind so ausgelegt, dass sie das Eindringen von Wind, Regen und Schnee in das Gebäude verhindern und dass alle daraus und alle aus nicht ständig durchgeführten Instandhaltungsarbeiten resultierenden Lasten auf das Bauwerk übertragen werden.
Dieses Dokument gilt nicht für Produkte für tragende Zwecke, d. h. es gilt für Produkte zur Verwendung in Konstruktionen der Klasse III (nach EN 1993 1 3), es gilt nicht für Produkte in Konstruktionen der Klassen I und II (nach EN 1993 1 3), die durch Sicherstellung der Plattenschubfestigkeit bzw. des Widerstandes gegen ständige statische Belastungen (mit Ausnahme des Eigengewichts des Metallblechs) zur globalen oder lokalen Stabilität des Bauwerks beitragen.
Anforderungen an die Unterkonstruktion, an die Konstruktion des Dach , Bekleidungs , Fassaden bzw. Dachpfannensystems, an die Ausführung der Verbindungen und an Bekleidungsbleche sind nicht Gegenstand dieses Dokuments.
Produits de couverture et de bardage en tôle métallique - Spécification pour les produits autoportants en tôle d'acier, d'aluminium ou d'acier inoxydable - Partie 1 : Acier
La présente partie de l'EN 508 spécifie les exigences relatives aux produits autoportants pour toiture, couverture, bardages extérieur et intérieur et cloisons, plateaux et tuiles pour pose en discontinu, en tôles d'acier revêtues d’un métal, avec ou sans revêtement organique supplémentaire. Les tôles destinées à être utilisées avec une isolation et des membranes sont également couvertes.
Le présent document établit les caractéristiques générales, les définitions, les classifications et l'étiquetage applicables aux produits, de même que les exigences relatives aux matériaux à partir desquels les produits peuvent être fabriqués. Il est destiné à être utilisé soit par des fabricants en vue de démontrer que leurs produits sont conformes aux exigences, soit par des acheteurs pour vérifier que les produits sont conformes avant leur mise à disposition sur le marché, avant leur expédition de l’usine. Il spécifie les exigences relatives aux produits pour leur permettre de répondre à toutes les conditions normales en service.
Le présent document s'applique à toutes les plaques autoportantes nervurées extérieures de couverture, de bardages intérieurs et extérieurs, de cloisons posées en discontinu, à l'exception des tuiles d'une surface inférieure à 1 m2 et produites par emboutissage. Ces plaques nervurées sont conçues pour empêcher le vent, la pluie et la neige de pénétrer dans le bâtiment et transmettent à la structure porteuse les charges qui en résultent ainsi que les charges occasionnelles dues aux opérations d'entretien.
Le présent document ne couvre pas les produits pour applications structurelles, c'est-à-dire qu'il couvre les produits utilisés dans la classe structurelle III (selon EN 1993-1-3), il ne couvre pas les produits destinés aux constructions de classes structurelles I et II (selon EN 1993-1-3) destinés à contribuer à la stabilité globale ou partielle de la structure du bâtiment ou apportant un contreventement ou une résistance aux charges statiques permanentes (à l'exclusion du poids propre de la plaque métallique).
Aucune prescription relative à la structure porteuse, à la conception du système de toiture, aux bardages extérieur et intérieur, cloisons, tuiles et à la réalisation des assemblages et des finitions n'est incluse.
Pločevina za pokrivanje streh in oblaganje sten - Specifikacija za samonosilne proizvode iz jeklene, aluminijeve pločevine ali pločevine iz nerjavnega jekla - 1. del: Jeklo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 508-1:2021
01-december-2021
Nadomešča:
SIST EN 508-1:2014
Pločevina za pokrivanje streh in oblaganje sten - Specifikacija za samonosilne
proizvode iz jeklene, aluminijeve pločevine ali pločevine iz nerjavnega jekla - 1.
del: Jeklo
Roofing and cladding products from metal sheet - Specification for self-supporting
products of steel, aluminium or stainless steel sheet - Part 1: Steel
Dachdeckungs- und Wandbekleidungsprodukte aus Metallblech - Spezifikation für
selbsttragende Dachdeckungsprodukte aus Stahlblech, Aluminiumblech oder
nichtrostendem Stahlblech - Teil 1: Stahl
Produits de couverture et de bardage en tôle métallique - Spécification pour les produits
autoportants en tôle d'acier, d'aluminium ou d'acier inoxydable - Partie 1 : Acier
Ta slovenski standard je istoveten z: EN 508-1:2021
ICS:
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
91.060.20 Strehe Roofs
SIST EN 508-1:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 508-1:2021
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SIST EN 508-1:2021
EN 508-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 91.060.20 Supersedes EN 508-1:2014
English Version
Roofing and cladding products from metal sheet -
Specification for self-supporting products of steel,
aluminium or stainless steel sheet - Part 1: Steel
Produits de couverture et de bardage en tôle Dachdeckungs- und Wandbekleidungsprodukte aus
métallique - Spécification pour les produits Metallblech - Spezifikation für selbsttragende
autoportants en tôle d'acier, d'aluminium ou d'acier Dachdeckungsprodukte aus Stahlblech,
inoxydable - Partie 1 : Acier Aluminiumblech oder nichtrostendem Stahlblech - Teil
1: Stahl
This European Standard was approved by CEN on 21 June 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 508-1:2021 E
worldwide for CEN national Members.
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions, symbols and abbreviations . 6
3.1 General . 6
3.2 Material definitions . 6
3.3 Profile definitions . 7
3.4 Product geometry . 9
3.5 Symbols and abbreviations .12
4 Requirements .13
4.1 General .13
4.2 Materials .13
4.3 Products .15
5 Test methods .17
5.1 Material properties .17
5.2 Mechanical properties .17
6 Designation.17
7 Marking, labelling and packaging .18
7.1 Marking and labelling .18
7.2 Packaging and special ordering conditions .18
7.3 Transport, storage and handling .18
Annex A (informative) Aluminium coated steel sheet (type A) .19
Annex B (normative) Multilayer coated steel sheet .21
Annex C (informative) Metallic coatings .23
Annex D (normative) Dimensional tolerances .27
Bibliography .48
2
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SIST EN 508-1:2021
EN 508-1:2021 (E)
European foreword
This document (EN 508-1:2021) has been prepared by Technical Committee CEN/TC 128 “Roof covering
products for discontinuous laying and products for wall cladding”, the secretariat of which is held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 508-1:2014.
In comparison with EN 508-1:2014 the following technical changes have been made:
— the scope of the document has been extended to include cladding products;
— a reference has been added to ZM (hot dip zinc-magnesium) coating;
— the reference AZ with organic coating has been deleted;
— a bending requirement has been added;
— three grades have been added 390, 420 and 450;
— minimum nominal coating masses have been added for exterior applications;
— clarification of the tolerances about liner tray.
These changes or additions can be found in the following Clauses and subclauses: Clause 1; 3.2.4; 3.2.6;
3.2.7; 3.5; 4.1; 4.2.1; 4.2.2; 4.2.3; 4.3.3.1 and Annex C.
EN 508, Roofing and cladding products from metal sheet - Specification for self-supporting products of steel,
aluminium or stainless steel sheet consists of the following parts:
— Part 1: Steel;
— Part 2: Aluminium;
— Part 3: Stainless steel.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
3
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Introduction
Figure 1 indicates the position of this document in the CEN framework of standards concerning roofing
and cladding products of metal sheet.
Figure 1 — Framework of standards
In this document, the performance of the product has been defined in terms of calculation and a number
of type tests.
The performance of a roof or of the cladding constructed with these products depends not only on the
properties of the product as required by this document, but also on the design, construction and
performance of the roof or the cladding as a whole in relation to the environment and conditions of use.
4
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SIST EN 508-1:2021
EN 508-1:2021 (E)
1 Scope
This part of EN 508 specifies requirements for self-supporting roofing, covering, wall cladding, lining,
liner tray and tile products for discontinuous laying made from metallic coated steel sheet with or without
additional organic coatings. Sheets intended to be used with insulation and membranes are also covered.
This document establishes general characteristics, definitions, classifications and labelling for the
products, together with requirements for the materials from which the products can be manufactured. It
is intended to be used either by manufacturers to ensure that their products comply with the
requirements or by purchasers to verify that the products comply when purchased before they are
dispatched from the factory. It specifies the requirements for products which enable them to meet all
normal service conditions.
This document applies to all discontinuously laid self-supporting external profiled sheets for roofing
covering, wall cladding, lining, and liner trays, with the exception of tiles with a surface area less than
2
1 m and produced by stamping. These profiled 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
constructions of structural Class III (according to EN 1993-1-3), it does not cover products used in
constructions of structural Classes I and II (according to EN 1993-1-3) intended to contribute to the
global or partial stability of the building structure by providing racking resistance or resistance to
permanent static loads (excluding self-weight of the metal sheet).
No requirements for supporting construction, design of roof, cladding, lining, tile system and execution
of connections and flashings are included.
2 Normative references
The following documents are referred to in the text in such a way that some or all of 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 1427, Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method
EN 10143, Continuously hot-dip coated steel sheet and strip - Tolerances on dimensions and shape
EN 10169:2010+A1:2012, Continuously organic coated (coil coated) steel flat products - Technical delivery
conditions
EN 10346, Continuously hot-dip coated steel flat products for cold forming - Technical delivery conditions
EN 14782, Self-supporting metal sheet for roofing, external cladding and internal lining - Product
specification and requirements
EN ISO 6270-1, Paints and varnishes - Determination of resistance to humidity - Part 1: Condensation
(single-sided exposure) (ISO 6270-1)
EN ISO 6988, Metallic and other non-organic coatings - Sulfur dioxide test with general condensation of
moisture (ISO 6988)
EN ISO 9227, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227)
5
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SIST EN 508-1:2021
EN 508-1:2021 (E)
3 Terms, definitions, symbols and abbreviations
3.1 General
For the purposes of this document, the terms and definitions given in EN 10169:2010+A1:2012 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
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
3.1.2
wall
if not otherwise specified, a vertical part of the envelop with a maximum inclination between 30° and 45°
3.1.3
roof
all elements of the envelope not covered by definition of a wall
3.2 Material definitions
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 1 to entry: See EN 10346.
3.2.2
hot-dip zinc-aluminum 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 to entry: See EN 10346.
3.2.3
hot-dip aluminum-zinc alloy 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);
— the balance zinc.
Note 1 to entry: See EN 10346.
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SIST EN 508-1:2021
EN 508-1:2021 (E)
3.2.4
hot dip zinc-magnesium coated steel sheet, type ZM
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 of zinc-aluminium-magnesium
Note 1 to entry: The composition of the molten coating alloy is a sum of aluminium and magnesium from 1,5 %
to 8 %, containing a minimum of 0,2 % magnesium and the balance zinc.
Note 2 to entry: For information on chemical composition and density, the manufacturer can be asked for advice.
Note 3 to entry: See EN 10346.
Note 4 to entry: The corrosion performance depends on the ZM composition.
3.2.5
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
Note 1 to entry: See Annex A.
3.2.6
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 ZM, or type A coated steel sheet
Note 1 to entry: EN 10169:2010+A1:2012 refers to this type of coated steel.
3.2.7
multilayer coated steel sheet
product obtained by continuously coating on both sides hot-dip metal coated (type Z, type ZA, type AZ,
type ZM, or type A) 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 1 to entry: 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
Note 1 to entry: See Figures 2, 3, 4 and 5.
Figure 2 — Part of typical trapezoidal profile
7
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Figure 3 — Part of typical trapezoidal profile with rounded crowns
Figure 4 — Part of typical trapezoidal profile with stiffened crown and web
Figure 5 — Part of typical trapezoidal profile with stiffened valley
3.3.2
sinusoidal profiled sheet
self-supporting sheet which is designed to allow it to be side and end lapped, comprising a series of arc
shaped crowns and valleys interconnected with tangential webs
Note 1 to entry: See Figure 6.
Key
1 depth
2 pitch
3 overlap
4 angle
Figure 6 — Part of typical sinusoidal profiled sheet
3.3.3
standing seam
concealed fix sheet
self-supporting sheet profiled in such a way that the fixings are hidden within the construction and are
not exposed to the weather
Note 1 to entry: The profile shape is designed to allow the formation of side laps on site.
Note 2 to entry: As these types of roof covering or cladding products are used in proprietary roofing or cladding
systems, no structural requirements are given within this part of EN 508.
Note 3 to entry: See Figures 7 and 8.
Note 4 to entry: These products are normally designed by testing.
8
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Figure 7 — Typical standing seam profile
Figure 8 — Typical concealed fix profile
3.3.4
tile profile
part of typical tile profiled sheets that can allow the sheet to be side and/or end lapped
Note 1 to entry: The tile profile can include transverse steps.
Note 2 to entry: As these types of roof covering or cladding products are used in proprietary systems no
structural requirements are given within this part of EN 508.
Note 3 to entry: See Figure 9 a), b) and c).
Note 4 to entry: These products are normally designed by testing.
Figure 9 — Typical tile profiles
3.4 Product geometry
Note 1 to entry: The names for various parts of typical trapezoidal profiled sheets are given in Figures 10 and 11,
with additional definitions for sinusoidal profiles in Figure 6 and tile profiles in Figure 12.
9
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Key
1 cover width 7 depth
2 valley stiffener 8 valley
3 rib 9 pitch
4 web stiffener 10 crown
5 trough 11 drainage groove
6 web 12 crown stiffener
Figure 10 — Definitions of the parts of typical trapezoidal profiled sheets
10
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Key
1 depth
2 pitch
3 overlap
4 angle
5 web angle
6 bend radius
7 side lap in principle the same on tiles
8 end lap
Figure 11 — Definitions of the parts of typical trapezoidal profiled sheets
11
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EN 508-1:2021 (E)
Key
1 height of the step
2 length of the step
3 number of steps
4 end lap
Figure 12 — Definitions of the parts of typical tile
3.5 Symbols and abbreviations
For the purposes of this document, the following symbols and abbreviations apply.
Z Hot-dip zinc coated steel
ZA Hot-dip zinc-aluminium coated steel
ZM Hot-dip zinc-magnesium coated steel
AZ Hot-dip aluminium-zinc alloy coated steel
A Hot-dip aluminium coated steel
ML Multilayer coated steel
AY Acrylic paint coating
SP Polyester paint coating
SP-PI Silicone-modified polyester paint coating
HDP High durable polyester
PVDF Polyvinylideenfluoride paint coating
PVC(P) Polyvinylchloride (plastisol) coating, applied by coil coating process
PUR Polyurethane paint coating
PUR-PA Polyurethane-modified polyester paint coating
SP-PA Polyamide-modified polyester paint coating
PVC(F) Polyvinylchloride (plastisol) film coating
PVF(F) Polyvinylfluoride film coating
PE(F) Polyethylene film coating
PET(F) Polyethylene terephthalate film coating
PP(F) Polypropylene film coating
12
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SIST EN 508-1:2021
EN 508-1:2021 (E)
EXAMPLES
Z275 PVDF paint coating, applied to steel sheet with continuously hot-dip zinc coating.
2
PVDF
Nominal coating mass 275 g/m total, both sides.
2
Z275
Hot-dip zinc coating, nominal coating mass 275 g/m total, both sides.
2
ZA255
Hot-dip zinc-aluminium -coating, nominal coating mass 255 g/m total, both sides.
2
AZ185
Hot-dip aluminium-zinc alloy-coating, nominal coating mass 185 g/m total, both
sides.
2
ZM 120
Hot-dip zinc-magnesium coating, nominal coating mass 120 g/m total, both sides.
4 Requirements
4.1 General
The product shall be manufactured from materials complying with 4.2.
Bending radius should respect forming limits of the material to avoid cracks in the coating layers (metallic
and organic) leading to premature corrosion. By default, internal forming radius should be at least 2 times
the material thickness; others to be agreed with the coil supplier.
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 are to be used to designate the steel grade, the type and mass of the
metallic coating are those of the standards referred to in Clause 2.
Product testing shall be provided to a defined schedule and carried out by the manufacturer or by an
approved body or by independent third party. A permanent quality system shall be adopted by the
1
manufacturer .
4.2 Materials
4.2.1 Materials for roll formed and brake pressed profiles
Material for self-supporting roll formed and brake pressed profiles shall be one of the grades of steel as
specified in the appropriate material standard EN 10346 given in Table 1.
1
e.g. quality management system based on EN ISO 9001.
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EN 508-1:2021 (E)
Table 1 — Grades of steel
Standard EN 10346 See 3.2.4
reference
Metallic coating Zinc Zinc/ Aluminium/ Zinc/ Aluminium
Aluminium Zinc Magnesium
a a a a
Permitted grades see Annex A
S220GD+Z S220GD+ZA S220GD+AZ S220GD+ZM
a a a a
S250GD+Z S250GD+ZA S250GD+AZ S250GD+ZM
S280GD+Z S280GD+ZA S280GD+AZ S280GD+ZM
S320GD+Z S320GD+ZA S320GD+AZ S320GD+ZM
S350GD+Z S350GD+ZA S350GD+AZ S350GD+ZM
S390GD+ZA S390GD+AZ
S390GD+Z S390GD+ZM
S420GD+ZA S420GD+AZ
S420GD+Z S420GD+ZM
S450GD+ZA S450GD+AZ
S450GD+ZM
S450GD+Z
S550GD+ZA S550GD+AZ
S550GD+ZM
S550GD+Z
a
Profiled sheets made from these grades may not be permitted for use in some countries.
4.2.2 Materials for tiles
The steel grades shown in Table 2 shall be used for forming tiles when the grades given in Table 1 are not
suitable because the manufacturing process requires specific forming qualities.
Table 2 — Grades of steel
Standard reference EN 10346
Metallic coating Z ZA AZ ZM
Permitted grades DX51D+Z DX51D+ZA DX51D+AZ DX51D+ZM
DX52D+Z DX52D+ZA DX52D+AZ DX52D+ZM
DX53D+Z DX53D+ZA DX53D+AZ DX53D+ZM
DX54D+Z DX54D+ZA DX54D+AZ DX54D+ZM
4.2.3 Nominal metallic coating
The minimum nominal metallic coating mass depends on geographic and climatic conditions and shall be
chosen from the values specified in EN 10346. The metallic coating mass shall be the sum of the coating
masses on both sides, in grams per square metre, measured and with tolerances as specified.
For exterior applications, the minimum nominal metallic coating masses shall be Z350 / AZ185 / ZA255
/ ZM175 without organic coating; and Z200 / ZA 185 / ZM100 with organic coating. Depending on
national regulation, corrosivity and expected lifetime, heavier coating masses may be required.
NOTE The minimum nominal metallic coating masses specified in some countries in their regulations or codes
of practice are listed in Annex C.
4.2.4 Organic coatings
The main external weather resistant organic coatings suitable for application to metallic coated steel
substrates are given in Table 3. AZ with organic coating is no longer produced in Europe.
A country may define for each coating the condition of applications adapted to its national environmental
location.
14
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SIST EN 508-1:2021
EN 508-1:2021 (E)
Table 3 — Factory applied organic coatings
Type of coating Designation
Factory applied coatings Acrylic AY
Polyester SP
High durable polyester HDP
a
SP-SI
Silicone-modified polyester
PVDF
Polyvinylidene fluoride
PVC(P)
Polyvinyl chloride (Plastisol)
PUR
Polyurethane
PUR-PA
Polyurethane-modified polyester
SP-PA
Polyamide-modified polyester
-
Multicoat polyvinylidene fluoride
-
Multicoat polyurethane
Factory applied laminated film Polyvinyl chloride (Plastisol) PVC(F)
Polyvinyl fluoride PVF(F)
a
PE(F)
Polyethylene
a
PET(F)
Polyethylene terephthalate
a PP(F)
Polypropylene
a
These four coatings are not adapted to exterior uses and are not currently used.
The reverse side coating should be chosen as appropriate. This is required for handling, storage and for
corrosion protection in some conditions.
Performance requirements and test methods for organic coil coated steel sheet and profile are given in
EN 10169:2010+A1:2012.
No requirements are given for coatings which are applied after the product is formed. Where appropriate
the tests in EN 10169:2010+A1:2012 may be used.
Special coatings or films may be applied to the reverse side to reduce the dripping of moisture caused by
condensation.
4.3 Products
4.3.1 Mechanical resistance
The manufacturer shall state the cross-sectional, material and member characteristics required for
design.
The product for roof shall resist the design loads from self weight, eventual insulation, eventual
membranes, snow, wind and maintenance loads. These loads shall be factored such that they will not
impair the performance (mechanical stability and serviceability) of the roof.
NOTE 1 The load level, the levels of safety and permissible deflection are defined in national building regulations.
The product for cladding shall resist the design loads from self weight, eventual insulation, and wind.
These loads shall be factored such that they will not impair the performance (mechanical stability and
serviceability) of the cladding.
NOTE 2 The load level, the levels of safety and permissible deflection are defined in national building regulations.
15
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4.3.2 Design (calculation and tests) of mechanical resistance
The provisions applicable shall be observed for the design and ULS and SLS verifications.
The mechanical performance of the product shall be stated by the manufacturer, together with details of
how the values were determined, in accordance with conditions in the place of use.
For calculation and testing either conditions in the place of use or EN 1993-1-3 may be used.
Calculation and test methods referred to in this part of EN 508 mainly deal with trapezoidal sheets. Tiles,
standing seam sheets and concealed fix sheets are used in proprietary roofing and cladding systems; no
structural requirements are given within this document for these products. These products should
normally be designed by testing.
4.3.3 Dimensions
4.3.3.1 General
The dimensions of the product shall be fixed in order that the roof and cladding constructed with these
products can fulfil its functions.
4.3.3.2 Thickness
Measurements of the thickness of manufactured products, such as profiled sheets, shall be made not less
than 40 mm from the edges in accordance with EN 10143.
Products shall be classified according to tolerance on nominal thickness as follows:
— class 1: full minus nominal normal tolerance according to EN 10143;
— class 2: full minus n
...
SLOVENSKI STANDARD
oSIST prEN 508-1:2020
01-maj-2020
Pločevina za pokrivanje streh in oblaganje sten - Specifikacija za samonosilne
proizvode iz jeklene, aluminijeve pločevine ali pločevine iz nerjavnega jekla - 1.
del: Jeklo
Roofing and cladding products from metal sheet - Specification for self-supporting
products of steel, aluminium or stainless steel sheet - Part 1: Steel
Dachdeckungs‑ und Wandbekleidungsprodukte aus Metallblech - Spezifikation für
selbsttragende Dachdeckungsprodukte aus Stahlblech, Aluminiumblech oder
nichtrostendem Stahlblech - Teil 1: Stahl
Produits de couverture et de bardage en tôle métallique - Spécification pour les produits
autoportants en tôle d'acier, d'aluminium ou d'acier inoxydable - Partie 1 : Acier
Ta slovenski standard je istoveten z: prEN 508-1
ICS:
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
91.060.20 Strehe Roofs
oSIST prEN 508-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 508-1:2020
DRAFT
EUROPEAN STANDARD
prEN 508-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 91.060.20 Will supersede EN 508-1:2014
English Version
Roofing and cladding products from metal sheet -
Specification for self-supporting products of steel,
aluminium or stainless steel sheet - Part 1: Steel
Produits de couverture et de bardage en tôle Dachdeckungs- und Wandbekleidungsprodukte aus
métallique - Spécification pour les produits Metallblech - Spezifikation für selbsttragende
autoportants en tôle d'acier, d'aluminium ou d'acier Dachdeckungsprodukte aus Stahlblech,
inoxydable - Partie 1 : Acier Aluminiumblech oder nichtrostendem Stahlblech - Teil
1: Stahl
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 128.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 508-1:2020 E
worldwide for CEN national Members.
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prEN 508-1:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions, symbols and abbreviations . 6
3.1 General . 6
3.2 Material definitions . 6
3.3 Profile definitions . 7
3.4 Product geometry . 9
3.5 Symbols and abbreviations . 12
4 Requirements . 13
4.1 General . 13
4.2 Materials . 13
4.3 Products . 15
5 Test methods . 17
5.1 Material properties . 17
5.2 Mechanical properties . 17
6 Designation. 17
7 Marking, labelling and packaging . 17
7.1 Marking and labelling . 17
7.2 Packaging and special ordering conditions . 18
7.3 Transport, storage and handling . 18
Annex A (informative) Aluminium coated steel sheet (type A) . 19
Annex B (normative) Multilayer coated steel sheet . 21
Annex C (informative) Metallic coatings . 23
Annex D (normative) Dimensional tolerances . 26
Bibliography . 45
2
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European foreword
This document (prEN 508-1:2020) has been prepared by Technical Committee CEN/TC 128 “Roof
covering products for discontinuous laying and products for wall cladding”, the secretariat of which is
held by NBN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 508-1:2014.
In comparison with EN 508-1:2014 the following technical changes have been made:
— the scope of the document has been extended to cladding products;
— a reference has been added to ZM (hot dip zinc-magnesium) coating;
— a bending requirement has been added;
— three grades have been added 390, 420 and 450;
— minimum nominal coating masses have been added for exterior applications.
These changes or additions can be found in the following Clauses and subclauses: Clause 1; 3.2.4; 3.2.6;
3.2.7; 3.5; 4.1; 4.2.1; 4.2.2; 4.2.3; 4.3.1; 4.3.3.1 and Annex C.
EN 508 Roofing products from metal sheet - Specification for self-supporting products of steel, aluminium
or stainless steel sheet consists of the following parts:
— Part 1: Steel;
— Part 2: Aluminium;
— Part 3: Stainless steel.
3
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Introduction
Figure 1 indicates the position of this document in the CEN framework of standards concerning roofing
and cladding products of metal sheet.
Figure 1 — Framework of standards
In this document, the performance of the product has been defined in terms of calculation and a number
of type tests.
The performance of a roof constructed with these products depends not only on the properties of the
product as required by this document, but also on the design, construction and performance of the roof
as a whole in relation to the environment and conditions of use.
4
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1 Scope
This part of EN 508 specifies requirements for self-supporting roofing, covering, wall cladding, lining,
liner tray and tile products for discontinuous laying made from metallic coated steel sheet with or without
additional organic coatings. Sheets intended to be used with insulation and membranes are also covered.
This document establishes general characteristics, definitions, classifications and labelling for the
products, together with requirements for the materials from which the products can be manufactured. It
is intended to be used either by manufacturers to ensure that their products comply with the
requirements or by purchasers to verify that the products comply when purchased before they are
despatched from the factory. It specifies the requirements for products which enable them to meet all
normal service conditions.
This document applies to all discontinuously laid self-supporting external profiled sheets for roofing
covering, wall cladding, lining, and liner trays, with the exception of tiles with a surface area less than
2
1 m and produced by stamping. These profiled 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
constructions of structural Class III (according to EN 1993-1-3), it does not cover products used in
constructions of structural Classes I and II (according to EN 1993-1-3) intended to contribute to the
global or partial stability of the building structure by providing racking resistance or resistance to
permanent static loads (excluding self-weight of the metal sheet).
No requirements for supporting construction, design of roof, cladding, lining, tile system and execution
of connections and flashings are included.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. 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 10169:2010+A1:2012, Continuously organic coated (coil coated) steel flat products - Technical delivery
conditions
EN 10346, Continuously hot-dip coated steel flat products for cold forming - Technical delivery conditions
EN 14782, Self-supporting metal sheet for roofing, external cladding and internal lining - Product
specification and requirements
EN ISO 6270-1, Paints and varnishes - Determination of resistance to humidity – Part 1: Condensation
(single-sided exposure) (ISO 6270-1)
EN ISO 6988, Metallic and other non-organic coatings - Sulfur dioxide test with general condensation of
moisture (ISO 6988)
EN ISO 9227, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227)
5
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3 Terms, definitions, symbols and abbreviations
3.1 General
For the purposes of this document, the terms and definitions given in EN 10169:2010+A1:2012 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
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
3.2 Material definitions
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 1 to entry: see EN 10346.
3.2.2
hot-dip zinc-aluminum 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 to entry: see EN 10346.
3.2.3
hot-dip aluminum-zinc alloy 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 to entry: see EN 10346.
3.2.4
hot dip zinc-magnesium coated steel sheet (type ZM)
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 of zinc-aluminium-magnesium
Note 1 to entry: The composition of the molten coating alloy is a sum of aluminium and magnesium from 1,5 % to
8 %, containing a minimum of 0,2 % magnesium and the balance zinc.
6
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Note 2 to entry: For information on chemical composition and density, the manufacturer may be asked for advice.
Note 3 to entry: see EN 10346
Note 4 to entry: The corrosion performance depends on the ZM composition
3.2.5
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
Note 1 to entry: See Annex A.
3.2.6
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, type ZM, or type A coated steel sheet
Note 1 to entry: EN 10169:2010+A1:2012 refers to this type of coated steel.
3.2.7
multilayer coated steel sheet
product obtained by continuously coating on both sides hot-dip metal coated (type Z, type ZA, type AZ,
type ZM, or type A) 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 1 to entry: 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
Note 1 to entry: See Figures 2, 3, 4 and 5.
Figure 2 — Part of typical trapezoidal profile
Figure 3 — Part of typical trapezoidal profile with rounded crowns
Figure 4 — Part of typical trapezoidal profile with stiffened crown and web
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Figure 5 — Part of typical trapezoidal profile with stiffened valley
3.3.2
sinusoidal profiled sheet
self-supporting sheet which is designed to allow it to be side and end lapped, comprising a series of arc
shaped crowns and valleys interconnected with tangential webs
Note 1 to entry: See Figure 6.
Key
1 depth
2 pitch
Figure 6 — Part of typical sinusoidal profiled sheet
3.3.3
standing seam and concealed fix sheet
self-supporting sheet profiled in such a way that the fixings are hidden within the construction and are
not exposed to the weather
Note 1 to entry: The profile shape is designed to allow the formation of side laps on site.
Note 2 to entry: As these types of roof covering products are used in proprietary roofing or cladding systems, no
structural requirements are given within this part of EN 508.
Note 3 to entry: See Figures 7 and 8.
Note 4 to entry: These products are normally designed by testing.
Figure 7 — Typical standing seam profile
Figure 8 — Typical concealed fix profile
8
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3.3.4
tile profiles
parts of typical tile profiled sheets that can allow the sheet to be side and/or end lapped
Note 1 to entry: The tile profile may include transverse steps.
Note 2 to entry: As these types of roof covering or cladding products are used in proprietary systems no
structural requirements are given within this part of EN 508.
Note 3 to entry: See Figure 9 a), b) and c).
Note 4 to entry: These products are normally designed by testing.
Figure 9 — Typical tile profiles
3.4 Product geometry
NOTE The names for various parts of typical trapezoidal profiled sheets are given in Figure 10 and 11, with
additional definitions for sinusoidal profiles in Figure 12 and tile profiles in Figure 13.
9
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Key
1 cover width 7 depth
2 valley stiffener 8 valley
3 rib 9 pitch
4 web stiffener 10 crown
5 trough 11 drainage groove
6 web 12 crown stiffener
Figure 10 — Definitions of the parts of typical trapezoidal profiled sheets
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Key
1 bend radius
2 end lap
3 web angle
4 overlap
5 underlap
6 side lap in principle the same on tiles
Figure 11 — Definitions of the parts of typical trapezoidal profiled sheets
Key
1 depth
2 pitch
Figure 12 — Definitions of the parts of typical sinusoidal profiled sheets
11
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Key
1 height of the step
2 length of the step
3 number of steps
4 end lap
Figure 13 — Definitions of the parts of typical tile
3.5 Symbols and abbreviations
For the purposes of this document, the following symbols and abbreviations apply.
Z Hot-dip zinc coated steel
ZA Hot-dip zinc/aluminium coated steel
ZM Hot-dip zinc/magnesium coated steel
AZ Hot-dip aluminium/zinc coated steel
A Hot-dip aluminium coated steel
ML Multilayer coated steel
AY Acrylic paint coating
SP Polyester paint coating
SP-PI Silicone-modified polyester paint coating
HDP High durable polyester
PVDF Polyvinylideenfluoride paint coating
PVC(P) Polyvinylchloride (plastisol) coating, applied by coil coating process
PUR Polyurethane paint coating
PUR-PA Polyurethane-modified polyester paint coating
SP-PA Polyamide-modified polyester paint coating
PVC(F) Polyvinylchloride (plastisol) film coating
PVF(F) Polyvinylfluoride film coating
PE(F) Polyethylene film coating
PET(F) Polyethylene terephthalate film coating
PP(F) Polypropylene film coating
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EXAMPLES
Z275 PVDF paint coating, applied to steel sheet with continuously hot-dip zinc coating.
PVDF 2
Nominal coating mass 275 g/m total, both sides.
Z275 2
Hot-dip zinc coating, nominal coating mass 275 g/m total, both sides.
ZA255 2
Hot-dip 5 % zinc/aluminium alloy-coating, nominal coating mass 255 g/m total, both
sides.
AZ185 2
Hot-dip 55 % aluminium: zinc alloy-coating, nominal coating mass 185 g/m total,
both sides.
ZM 120 2
Hot-dip zinc/aluminium/magnesium alloy-coating, nominal coating mass 120 g/m
total, both sides
4 Requirements
4.1 General
The product shall be manufactured from materials complying with 4.2.
Bending radius along the step should respect forming limits of the material to avoid cracks in the coating
layers (metallic and organic) leading to premature corrosion. By default, external forming radius should
be at least 2 times the material thickness; others to be agreed with the coil supplier
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 steel grade, the type and mass of the metallic
coating are those of the standards referred to in Clause 2.
Product testing shall be provided to a defined schedule and carried out by the manufacturer or by an
1
approved body. A permanent quality system shall be adopted by the manufacturer ).
4.2 Materials
4.2.1 Materials for roll formed and brake pressed profiles
Material for self-supporting roll formed and brake pressed profiles shall be one of the grades of steel as
specified in the appropriate material standard EN 10346 given in Table 1.
1) E.g. quality management system based on EN ISO 9001.
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Table 1 — Grades of steel
Standard EN 10346 See 3.2.4
reference
Metallic coating Zinc Zinc/ Aluminium/ Zinc/ Aluminium
Aluminium Zinc Magnesium
Permitted grades a a a a see Annex A
S220GD+Z S220GD+ZA S220GD+AZ S220GD+ZM
a a a a
S250GD+Z S250GD+ZA S250GD+AZ S250GD+ZM
S280GD+Z S280GD+ZA S280GD+AZ S280GD+ZM
S320GD+Z S320GD+ZA S320GD+AZ S320GD+ZM
S350GD+Z S350GD+ZA S350GD+AZ S350GD+ZM
S390GD+ZA S390GD+AZ
S390GD+Z S390GD+ZM
S420GD+ZA S420GD+AZ
S420GD+Z S420GD+ZM
S450GD+ZA S450GD+AZ
S450GD+ZM
S450GD+Z
S550GD+ZA S550GD+AZ
S550GD+ZM
S550GD+Z
a
Profiled sheets made from these grades may not be permitted for use in some countries.
4.2.2 Materials for tiles
The steel grades shown in Table 2 shall be used for forming tiles when the grades given in Table 1 are not
suitable because the manufacturing process requires specific forming qualities.
Table 2 — Grades of steel
Standard reference EN 10346
Metallic coating Z ZA AZ ZM
Permitted grades DX51D+Z DX51D+ZA DX51D+AZ DX51D+ZM
DX52D+Z DX52D+ZA DX52D+AZ DX52D+ZM
DX53D+Z DX53D+ZA DX53D+AZ DX53D+ZM
DX54D+Z DX54D+ZA DX54D+AZ DX54D+ZM
4.2.3 Nominal metallic coating
The minimum nominal metallic coating mass depends on geographic and climatic conditions and shall be
chosen from the values specified in EN 10346. The metallic coating mass shall be the sum of the coating
masses on both sides, in grams per square metre, measured and with tolerances as specified in the
appropriate standard.
For exterior applications, the minimum nominal metallic coating masses shall be Z350 / AZ150 / ZA255
/ ZM175 without organic coating; and Z200 / AZ150 / ZA 200 / ZM100 with organic coating. Depending
on corrosivity and expected lifetime, heavier coating masses may be required.
NOTE The minimum nominal metallic coating masses specified in some countries in their regulations or codes
of practice are listed in Annex C.
4.2.4 Organic coatings
The main external weather resistant organic coatings suitable for application to metallic coated steel
substrates are given in Table 3.
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Table 3 — Factory applied organic coatings
Type of coating Designation
Factory applied coatings Acrylic AY
Polyester SP
High durable polyester HDP
Silicone-modified polyester SP-SI
Polyvinylidene fluoride PVDF
Polyvinyl chloride (Plastisol) PVC(P)
Polyurethane PUR
Polyurethane-modified polyester PUR-PA
Polyamide-modified polyester SP-PA
Multicoat polyvinylidene fluoride -
Multicoat polyurethane -
Factory applied laminated film Polyvinyl chloride (Plastisol) PVC(F)
Polyvinyl fluoride PVF(F)
Polyethylene PE(F)
Polyethylene terephthalate PET(F)
Polypropylene PP(F)
The reverse side coating should be chosen as appropriate. This is required for handling, storage and for
corrosion protection in some conditions.
Performance requirements and test methods for organic coil coated steel sheet and profile are given in
EN 10169:2010+A1:2012.
No requirements are given for coatings which are applied after the product is formed. Where appropriate
the tests in EN 10169:2010+A1:2012 may be used.
Special coatings or films may be applied to the reverse side to reduce the dripping of moisture caused by
condensation.
4.3 Products
4.3.1 Mechanical resistance
The product for roof shall resist the design loads from self weight, eventual insulation, eventual
membranes, snow, wind and maintenance loads. These loads shall be factored such that they will not
impair the performance of the roof.
NOTE 1 The load level, the levels of safety and permissible deflection are defined in national building regulations.
The product for cladding shall resist the design loads from self weight, eventual insulation, wind. These
loads shall be factored such that they will not impair the performance of the cladding.
NOTE 2 The load level, the levels of safety and permissible deflection are defined in national building regulations.
4.3.2 Calculation and test of mechanical resistance
The mechanical performance of the product shall be stated by the manufacturer, together with details of
how the values were determined, in accordance with conditions in the place of use.
For calculation and testing either conditions in the place of use or EN 1993-1-3 may be used.
Calculation and test methods referred to in this part of EN 508 mainly deal with trapezoidal sheets. Tiles,
standing seam sheets and concealed fix sheets are used in proprietary roofing systems; no structural
15
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requirements are given within this document for these products. These products should normally be
designed by testing.
4.3.3 Dimensions
4.3.3.1 General
The dimensions of the product shall be fixed in order that the roof and cladding constructed with these
products can fulfil its functions.
4.3.3.2 Thickness
Measurements of the thickness of manufactured products, such as profiled sheets, shall be made not less
than 40 mm from the edges in accordance with EN 10143.
Products shall be classified according to tolerance on nominal thickness as follows:
— class 1: full minus nominal normal tolerance according to EN 10143;
— class 2: full minus nominal special tolerance according to EN 10143;
— class 3: 1/2 minus nominal normal tolerance in accordance with EN 10143;
— class 4: zero minus tolerance.
NOTE 1 For products of class 3, mechanical resistance is calculated using the minimum thickness of the steel
core guaranteed by the manufacturer.
NOTE 2 National regulations will state the class of product that it will be possible to use.
4.3.4 Dimensional tolerances for the profiled sheets
Tolerances for the profile shape of the product and methods of measurement shall be in accordance with
Annex D.
4.3.5 Safety in case of fire
4.3.5.1 Reaction to fire
The performance shall be defined according to the Euroclass system. EN 14782 defines the SBI specimen
when required and the direct and extended application rules. The national regulations fix the level of
reaction to fire required for each building.
4.3.5.2 Resistance to fire
When required, the performance shall be defined according to the euroclass system.
NOTE The resistance to fire concerns only the E, I and W classification and does not concern the R-
classification.
4.3.5.3 External fire roof performance
When required, the performance shall be defined according to the euroclass system.
NOTE The external fire roof performance can be Brooft1, Brooft2, Brooft3 or Brooft4.
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oSIST prEN 508-1:2020
prEN 508-1:2020 (E)
5 Test methods
5.1 Mat
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