SIST EN 508-3:2021+A1:2023
(Main + Amendment)Roofing and cladding products from metal sheet - Specification for self-supporting products of steel, aluminium or stainless steel sheet - Part 3: Stainless steel
Roofing and cladding products from metal sheet - Specification for self-supporting products of steel, aluminium or stainless steel sheet - Part 3: Stainless steel
This part of EN 508 specifies requirements for self-supporting products for roof covering, wall cladding, lining, liner tray and tile products for discontinuous laying made from stainless steel sheets with or without additional metallic and/or 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 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 roof covering, wall cladding, lining, liner trays and tile products 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 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 or 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 3: Nichtrostendes Stahlblech
Dieser Teil von EN 508 legt Anforderungen an selbsttragende Dacheindeckungsprodukte, Dachbekleidungs¬produkte, Außenwandbekleidungsprodukte, Fassadenpaneel-, Kassettenprofil- und Dachpfannenprodukte zur überlappenden Verlegung fest, die aus nichtrostendem Stahl, mit oder ohne zusätzliche metallische und/oder 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 Beschriftung für die Produkte fest sowie die Anforderungen an die Werkstoffe, aus denen die Produkte hergestellt werden können. Sie 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. Sie legt die Anforderungen an Produkte fest, unter denen diese allen normalen Einsatzbedingungen gerecht werden können.
Dieses Dokument gilt für alle außen verwendeten, überlappend verlegten, selbsttragenden Profiltafeln für Dacheindeckungsprodukte, Dachbekleidungsprodukte, Außenwandbekleidungsprodukte, Fassadenpaneel-, Kassettenprofil- und Dachpfannenprodukte, sie gilt nicht für Dachpfannen mit einer Oberfläche < 1 m2 und gepresste Dachpfannen. Diese Profilbleche zur Dacheindeckung sind so ausgelegt, dass das Eindringen von Wind, Regen und Schnee in das Gebäude verhindert wird 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 Schubbettung 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 Kehlbleche sind nicht Gegenstand dieses Dokuments.
Produits de couverture et bardage en tôle métallique - Spécification pour les produits autoportants en tôle d'acier, d'aluminium ou d'acier inoxydable - Partie 3 : Acier inoxydable
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 inoxydable avec ou sans revêtement métallique et/ou 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 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 pour couverture, bardage intérieur et extérieur, cloisons, plateaux et tuiles, posées en discontinu, à l'exception des tuiles d'une surface inférieure à 1 m2 et produites par emboutissage. Ces plaques profilées sont conçues pour empêcher le vent, la pluie et la neige de pénétrer dans le bâtiment et pour transmettre à la structure porteuse les charges qui en résultent ainsi que les charges non permanentes 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 l'EN 1993 1 3), il ne couvre pas les produits destinés aux constructions de classes structurelles I et II (selon l'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 exigence relative à la structure porteuse, à la conception de toiture ou des bardages extérieur et intérieur et cloisons, aux tuiles et à la réalisation des assemblages et des finitions n'est incluse.
Pločevina za pokrivanje streh in oblaganje sten - Specifikacije za samonosilne proizvode iz jeklene, aluminijeve pločevine ali pločevine iz nerjavnega jekla - 3. del: Nerjavno jeklo (vključno z dopolnilom A1)
Ta del standarda EN 508 določa zahteve za samonosilne proizvode za strešno kritino, zunanje in notranje obloge, profilne kritine in ploščice za nezvezno polaganje, izdelane iz pločevine iz nerjavnega jekla z dodatnimi kovinskimi in/ali organskimi premazi oziroma brez njih. V njem so zajete tudi pločevine, ki se uporabljajo z izolacijo in membranami.
Ta dokument določa splošne lastnosti, definicije, klasifikacije in označevanje za izdelke ter zahteve za materiale, iz katerih so izdelki lahko proizvedeni. Namenjen je proizvajalcem, da se zagotovi skladnost njihovih izdelkov z zahtevami, oziroma kupcem, da lahko preverijo skladnost izdelkov pred razpošiljanjem iz tovarne. Določa zahteve za izdelke, ki omogočajo, da slednji izpolnjujejo vse običajne pogoje uporabe.
Ta dokument se uporablja za vse nezvezno položene samonosilne zunanje profilirane pločevine za strešne kritine, zunanje in notranje obloge, profilne kritine in ploščice, z izjemo tistih, ki imajo površino manjšo od 1 m2 in so izdelane z vtiskavanjem. Te profilirane strešne pločevine so zasnovane tako, da stavbo ščitijo pred vetrom, dežjem in snegom, pri čemer morebitne nastale obremenitve in obremenitve zaradi nerednega vzdrževanja prenesejo na konstrukcijo.
Ta dokument ne zajema izdelkov za gradbene namene, kar pomeni, da ne zajema izdelkov, ki se uporabljajo v konstrukcijskem razredu III (v skladu s standardom EN 1993-1-3), ter izdelkov, ki se uporabljajo v konstrukcijskih razredih I in II (v skladu s standardom EN 1993-1-3) in prispevajo k celotni ali delni stabilnosti gradbene konstrukcije tako, da zagotavljajo odpornost proti natezanju ali proti trajnim statičnim bremenom (brez lastne teže kovinske pločevine).
Standard ne vključuje zahtev za podporne konstrukcije, projektiranje strešnega sistema ali sistema zunanjih in notranjih oblog ter ploščic in postavitev povezav in obrob.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2023
Pločevina za pokrivanje streh in oblaganje sten - Specifikacije za samonosilne
proizvode iz jeklene, aluminijeve pločevine ali pločevine iz nerjavnega jekla - 3.
del: Nerjavno jeklo (vključno z dopolnilom A1)
Roofing and cladding products from metal sheet - Specification for self-supporting
products of steel, aluminium or stainless steel sheet - Part 3: Stainless steel
Dachdeckungs- und Wandbekleidungsprodukte aus Metallblech - Spezifikation für
selbsttragende Dachdeckungsprodukte aus Stahlblech, Aluminiumblech oder
nichtrostendem Stahlblech - Teil 3: Nichtrostendes Stahlblech
Produits de couverture et bardage en tôle métallique - Spécification pour les produits
autoportants en tôle d'acier, d'aluminium ou d'acier inoxydable - Partie 3 : Acier
inoxydable
Ta slovenski standard je istoveten z: EN 508-3:2021+A1:2023
ICS:
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
91.060.20 Strehe Roofs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 508-3:2021+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 91.060.20 Supersedes EN 508-3:2021
English Version
Roofing and cladding products from metal sheet -
Specification for self-supporting products of steel,
aluminium or stainless steel sheet - Part 3: Stainless steel
Produits de couverture et bardage en tôle métallique - Dachdeckungs- und Wandbekleidungsprodukte aus
Spécification pour les produits autoportants en tôle Metallblech - Spezifikation für selbsttragende
d'acier, d'aluminium ou d'acier inoxydable - Partie 3 : Dachdeckungsprodukte aus Stahlblech,
Acier inoxydable Aluminiumblech oder nichtrostendem Stahlblech - Teil
3: Nichtrostendes Stahlblech
This European Standard was approved by CEN on 11 July 2021 and includes Amendment approved by CEN on 27 April 2023.
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 508-3:2021+A1:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions, symbols and abbreviations . 6
3.1 General . 6
3.2 Materials . 6
3.3 Profile definitions . 7
3.4 Geometry . 9
3.5 Symbols and abbreviations . 12
4 Requirements . 12
4.1 General . 12
4.2 Materials . 12
4.2.1 Grades. 12
4.2.2 Chemical composition . 13
4.2.3 Physical properties . 13
4.2.4 Surface finishes of stainless steel . 13
4.2.5 Tin coated stainless steel . 13
4.2.6 Organic coated stainless steel . 14
4.3 Products . 14
4.3.1 Mechanical resistance . 14
4.3.2 Design (calculation and tests) of mechanical resistance . 14
4.3.3 Dimensions . 15
4.3.4 Dimensional tolerances for the profiled sheets . 15
4.3.5 Safety in case of fire . 15
5 Test methods . 16
5.1 Material properties . 16
5.2 Mechanical properties . 16
6 Designation. 16
7 Marking, labelling, packaging . 16
7.1 Marking and labelling . 16
7.2 Packaging and special ordering conditions . 17
7.3 Transport, storage and handling . 17
Annex A (informative) Physical properties . 18
Annex B (normative) Dimensional tolerances . 19
Annex C (informative) Test methods for concentrated load . 39
Bibliography . 40
European foreword
This document (EN 508-3:2021+A1:2023) 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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
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 includes Amendment 1 approved by CEN on 27 April 2023.
This document supersedes !EN 508-3:2021".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
In comparison with EN 508-3:2008, the following technical changes have been made:
— scope of the document has been extended to cladding products;
— grades have been added;
— clarification has been done about tolerances of liner trays.
These changes or additions can be found in the following clauses and subclauses: Clause 1; Clause 2; 3.2.3;
4.2.1; 4.2.4; 4.3.5; 4.3.5.2; 4.3.5.3; Annex A and the Bibliography.
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, Türkiye and the United
Kingdom.
Introduction
Figure 1 indicates the position of this document in the CEN framework of standards concerning roofing
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 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 cladding as a whole in relation to the environment and conditions of use.
1 Scope
This part of EN 508 specifies requirements for self-supporting products for roof covering, wall cladding,
lining, liner tray and tile products for discontinuous laying made from stainless steel sheets with or
without additional metallic and/or 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 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 roof
covering, wall cladding, lining, liner trays and tile products with the exception of tiles with a surface area
less than 1 m 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 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 or 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 10088-1, Stainless steels - Part 1: List of stainless steels
EN 10088-4, Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for construction purposes
EN 14782, Self-supporting metal sheet for roofing, external cladding and internal lining - Product
specification and requirements
EN ISO 9445-1, Continuously cold-rolled stainless steel - Tolerances on dimensions and form - Part 1:
Narrow strip and cut lengths (ISO 9445-1)
EN ISO 9445-2, Continuously cold-rolled stainless steel - Tolerances on dimensions and form - Part 2: Wide
strip and plate/sheet (ISO 9445-2)
3 Terms and definitions, symbols and abbreviations
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology 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 General
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
stainless steel sheet
steel sheet with at least a content of 10,5 % chromium and max. 1,2 % carbon
Note 1 to entry: For roofing or cladding products the stainless steel grades are:
— ferritic;
— austenitic with or without molybdenum;
— austenitic ferritic (duplex); and
— higher alloyed grades.
3.2.2
tin coated stainless steel
stainless steel continuously coated with tin by electrodeposition
3.2.3
organic coated stainless steel
stainless steel or tin coated stainless steel which is continuously (factory-) painted by roller or spray
process
Note 1 to entry: !EN 10169" refers to this type of coated steel.
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
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 3 overlap
2 pitch 4 angle
Figure 6 — Part of typical sinusoidal profiled sheet
3.3.3
standing seam sheet
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 systems, no structural
requirements are given within this document.
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
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 profiles can include transverse steps.
Note 2 to entry: As these types of roof covering products are used in proprietary systems, no structural
requirements are given within this document.
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 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.
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
Key
!1 depth 5 web angle
2 pitch 6 bend radius
3 overlap 7 side lap in principle the same on tiles
4 angle 8 end lap"
Figure 11 — Definitions of the parts of typical trapezoidal profiled sheets
Key
1 height of the step 3 number of steps
2 length of the step 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.
X Stainless steel
X .+SE Tin coated stainless steel
SP Polyester paint coating
SP-SI Silicone-modified polyester paint coating
PVDF Polyvinylidene fluoride paint coating
PUR Polyurethane paint coating
PUR-PA Polyurethane-modified polyester paint coating
PVC(P) Polyvinylchloride(plastisol) coating applied by coil coating process
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
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 steel grade, the type and mass of 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 an independent third party. A permanent quality system shall be adopted by the
manufacturer .
4.2 Materials
4.2.1 Grades
The grades of stainless steel shall be selected depending on the corrosion conditions of the local
environment, durability requirements and aesthetic considerations.
Material for self-supporting roll formed and brake pressed profiles shall be one of the grades of steel as
given in Table 1.
E.g. quality management system based on EN ISO 9001.
Table 1 — Grades
Steel grade Steel designation
Steel name Steel number
a
Ferritic with organic coating 1.4000
X6Cr13
a
Ferritic with or without organic coating 1.4016
X6Cr17
X6CrMo17–1 1.4113
X2CrTiNb18 1.4509
X3CrTi17 1.4510
X2CrMoTi18–2 1.4521
X6CrMoNb17–1 1.4526
Austenitic with or without organic X5CrNi18–10 1.4301
coating
X2CrNi18–9 1.4307
Austenitic/Molybdenum with or without X5CrNiMo17–12–2 1.4401
organic coating
X2CrNiMo17–12–2 1.4404
a
Profiled sheets made from these grades may not be permitted for use in some countries.
4.2.2 Chemical composition
The chemical composition of stainless steel shall be in accordance with EN 10088-4.
4.2.3 Physical properties
The physical properties for stainless steel shall be in accordance with EN 10088-1.
NOTE Some physical properties are given in Annex A, for information.
4.2.4 Surface finishes of stainless steel
All normal stainless steel finishes can be used including bright finish, 2b according to EN 10088-4, and
dull finish, 2d and 2a according to EN 10088-4 and other low or high reflective finishes.
4.2.5 Tin coated stainless steel
4.2.5.1 Coating
The coating shall be homogeneous and shall not present any discontinuities which could impair the use
of the product.
After a bend test carried out with a bend angle of 180 ° and a diameter of the mandrel equal to 1t
(t thickness of the product), there shall be no peeling of the coating.
4.2.5.2 Coating mass
The nominal coating mass shall be the total mass of both surfaces expressed in g/m .
The nominal coating mass shall be ≥ 10 g/m . The minimum values of the coating mass shall be
2 2
respectively 10 g/m and 8 g/m when determined by a triple spot test or a single spot test.
4.2.6 Organic coated stainless steel
The main organic coatings suitable for application to stainless steel substrates are given in Table 2.
NOTE Further information is given in !EN 10169".
Organic coatings shall be selected dependent upon the processing and service conditions, including
specific climatic conditions.
Table 2 — Organic coatings and specified minimum thicknesses
Coating Symbol Number of Minimum permitted
layers per nominal coating thickness in
a
µm per side
side
Polyester SP 2 25
Silicone-modified polyester SP-SI 2 25
Polyurethane PUR 2 25
Polyvinylidenefluoride PVDF 2, 3, 4 25
Polyvinylchloride (Plastisol) PVC (P) 2 80
a
Including primer but excluding protective films.
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, insulation (if applicable), eventual
membranes, snow, wind and maintenance. 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.
4.3.2 Design (calculation and tests) of mechanical resistance
The provisions applicable shall be observed for the design and Ultimate Limit State (ULS) and
Serviceability Limit State (SLS) verifications.
The mechanical performance of the product shall be declared together with the details of which values
have been used for its determination in the place of use.
NOTE Conditions in the place of use can include national regulations.
For calculation and testing either national regulations or EN 1993-1-4 for stainless steel may be used.
Calculation and test methods referred to in this document 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.
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