oSIST prEN 14509-1:2021
(Main)Factory-made double skin metal faced insulating sandwich panels - Part 1: Self-supporting applications
Factory-made double skin metal faced insulating sandwich panels - Part 1: Self-supporting applications
This European Standard specifies requirements for factory made, self-supporting, double skin metal faced insulating sandwich panels, which are intended for discontinuous laying in the following applications:
a) roofs and roof cladding;
b) external walls and wall cladding;
c) walls (including partitions) and ceilings within the building envelope.
The insulating core materials covered by this European Standard are rigid polyurethane, expanded polystyrene, extruded polystyrene foam, phenolic foam, cellular glass and mineral wool.
NOTE Polyurethane (PUR) includes polyisocyanurate (PIR).
Panels with edge details that utilise different materials from the main insulating core are included in this European Standard.
Panels used in cold store applications are included in this European Standard. Panels, put on the market as a component of a cold storage room, building and/or building envelope kit are covered by ETA-Guideline 021 “Cold storage premises kits”.
This European Standard does not cover the following:
i. sandwich panels with a declared thermal conductivity for the insulating core greater than 0,06 W/m•K at 10 °C;
ii. products consisting of two or more clearly defined layers of different insulating core materials (multi-layered);
iii. panels with perforated facing(s);
iv. curved panels.
Werkmäßig hergestellte Sandwich-Elemente mit beidseitigen Metalldeckschichten - Teil 1: Selbsttragende Anwendungen
Dieses Dokument legt Anforderungen an werkmäßig hergestellte selbsttragende Sandwichelemente mit beidseitigen Metalldeckschichten fest, die für elementweise Verlegung mit übergreifenden oder überlappenden Längsfugen in den folgenden Anwendungen bestimmt sind:
a) Dächer und Dachdeckungen;
b) Außenwände und Wandbekleidungen;
c) Wände (einschließlich Trennwänden) und (Unter-)Decken innerhalb der Gebäudehülle.
Die von diesem Dokument abgedeckten Dämmkernwerkstoffe sind Polyurethan-Hartschaum, expandiertes Polystyrol, extrudierter Polystyrolschaum, Phenolharzschaum, Schaumglas und Mineralwolle.
ANMERKUNG Polyurethan (PUR) schließt Polyisocyanurat (PIR) ein.
Dämmelemente (im Folgenden „Elemente“ genannt) mit Kantenausführungen, für die andere Werkstoffe als für den Hauptdämmkern verwendet werden, sind Gegenstand dieses Dokuments.
Dämmelemente für Kühlhausanwendungen sind Gegenstand dieses Dokuments. Elemente, die als Bauteil für ein Kühlhaus, für Gebäude und/oder als Bausatz für die Gebäudehülle in Verkehr gebracht werden, sind durch die ETA-Richtlinie 021 „Bausätze für Kühlhäuser“ abgedeckt.
Dieses Dokument gilt nicht für:
i) Sandwichelemente mit einer deklarierten Wärmeleitfähigkeit des Dämmkerns 0,06 W/(m K) bei 10 °C;
ii) Produkte, die aus zwei oder mehr eindeutig festgelegten Schichten unterschiedlicher Dämmkernwerk-stoffe bestehen (Mehrschicht-Produkte);
iii) Elemente mit perforierter/en Deckschicht(en);
iv) gekrümmte Elemente.
Panneaux sandwichs isolants double peau à parements métalliques manufacturés - Partie 1 : Applications autoportantes
Le présent document spécifie les exigences applicables aux panneaux sandwiches manufacturés, autoportants, isolants, à deux parements métalliques, utilisés pour la pose en discontinu dans les cas suivants :
a) couvertures et bardages ;
b) parois extérieures et bardages de parois ;
c) parois (y compris cloisons) et plafonds dans l’enveloppe du bâtiment.
Les matériaux d’âme isolante couverts par le présent document sont : le polyuréthane rigide, le polystyrène expansé, la mousse de polystyrène extrudé, la mousse phénolique, le verre cellulaire et la laine minérale.
NOTE Le polyuréthane (PUR) inclut le polyisocyanurate (PIR).
Le présente document inclut les panneaux dont les chants sont en matériaux autres que le matériau d’âme isolant principal.
il inclut également les panneaux utilisés dans des applications pour chambres froides. Les panneaux, mis sur le marché en tant que composant de chambre d’entreposage frigorifique, de bâtiment et/ou d’équipements d’enveloppe de bâtiment, font l’objet du guide 021 de l’ETA « Équipements de locaux d’entreposage frigorifique ».
Le présent document ne couvre pas ce qui suit :
i. les panneaux sandwiches dont la conductivité thermique déclarée de l’âme isolante est supérieure à 0,06 W/m·K à 10°C ;
ii. les produits comportant deux couches ou plus clairement définies de différents matériaux d’âme isolante (multicouches) ;
iii. les panneaux à parement(s) perforé(s) ;
iv. les panneaux cintrés.
Tovarniško izdelane izolacijske sendvič plošče z obojestranskim kovinskim oplaščenjem - 1. del: Samonosilne
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2021
Tovarniško izdelane izolacijske sendvič plošče z obojestranskim kovinskim
oplaščenjem - 1. del: Samonosilne
Factory-made double skin metal faced insulating sandwich panels - Part 1: Self-
supporting applications
Werkmäßig hergestellte Sandwich-Elemente mit beidseitigen Metalldeckschichten - Teil
1: Selbsttragende Anwendungen
Panneaux sandwichs isolants double peau à parements métalliques manufacturés -
Partie 1 : Applications autoportantes
Ta slovenski standard je istoveten z: prEN 14509-1
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2021
ICS 91.100.60 Will supersede EN 14509:2013
English Version
Factory-made double skin metal faced insulating sandwich
panels - Part 1: Self-supporting applications
Panneaux sandwichs isolants double peau à parements Werkmäßig hergestellte Sandwich-Elemente mit
métalliques manufacturés - Partie 1 : Applications beidseitigen Metalldeckschichten - Teil 1:
autoportantes Selbsttragende Anwendungen
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14509-1:2021 E
worldwide for CEN national Members.
Contents Page
European foreword .5
Introduction .6
1 Scope .7
2 Normative references .8
3 Terms, definitions, symbols, subscripts and abbreviations .9
3.1 Terms and definitions .9
3.2 Symbols, subscripts and abbreviations . 11
3.2.1 Symbols . 11
3.2.2 Subscripts. 11
3.2.3 Abbreviations . 12
4 Characteristics . 12
4.1 Mechanical resistance . 12
4.1.1 General . 12
4.1.2 Characteristics of metal faces . 13
4.1.3 Shear strength (f ) for short-term loading . 15
Cv
4.1.4 Shear modulus (G ) for short-term loading . 15
c
4.1.5 Creep coefficient (φ ) . 16
t
4.1.6 Compressive strength (f ) . 16
Cc
4.1.7 Compressive modulus (E ) . 16
Cc
4.1.8 Shear strength after long-term loading (f ) . 16
Cv long-term
4.1.9 Cross panel tensile strength (f ) . 17
Ct
4.1.10 Cross panel tensile modulus (E ) . 17
Ct
4.1.11 Wrinkling strength (σ ) . 17
w
4.1.12 Wrinkling strength at elevated temperature (σ ) . 17
wT
4.1.13 Wrinkling strength over a central support (σ ) . 18
ws
4.1.14 Wrinkling strength over a central support at elevated temperature (σ ). 18
wsT
4.1.15 Stress distribution factor over a support (k) . 18
4.2 Thermal transmittance . 18
4.3 Reaction to fire . 18
4.4 Resistance to fire . 19
4.5 External fire performance – roofs . 19
4.6 Dimensional tolerances . 20
4.7 Water permeability . 21
4.7.1 Water permeability of the product . 21
4.7.2 Water permeability of a joint. 22
4.8 Air permeability . 22
4.8.1 Air permeability of the product . 22
4.8.2 Air permeability of a joint . 22
4.9 Water vapour permeability . 22
4.9.1 Water vapour permeability of the product . 22
4.9.2 Water vapour permeability of a joint . 22
4.10 Airborne sound insulation (R (C;C )) . 23
w tr
4.11 Sound absorption (α ) . 23
w
4.12 Durability . 23
4.12.1 General . 23
4.12.2 Reduction of cross panel tensile strength . 23
4.12.3 Resistance to access loads . 26
4.12.4 Corrosion resistance . 26
5 Assessment and verification of constancy of performance - AVCP . 27
5.1 General . 27
5.2 Assessment of performance . 27
5.2.1 General . 27
5.2.2 Test samples, testing and assessment criteria . 28
5.3 Verification of constancy of performance . 30
5.3.1 Factory Production Control (FPC) . 30
5.3.2 Initial inspection of factory and of FPC . 32
5.3.3 Continuous surveillance of FPC . 32
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 34
Bibliography . 41
European foreword
This document (prEN 14509-1:2021) 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 document is currently submitted to the CEN Enquiry.
This document will supersede EN 14509:2013 together with prEN 14509-3:2021 and
prEN 14509-5:2021.
EN 14509:2013 is completely revised.
This document has been prepared under two standardization requests given to CEN by the European
Commission and the European Free Trade Association.
For relationship with Regulation (EU) No.305/2011 on construction products (CPR), see informative
Annex ZA, which is an integral part of this document.
Introduction
In FprEN 14509-2:2020, the rules on assessment of performance for structural use are given, as this
standard is for use as self-supporting panels.
The clarification of which application is self-supporting is given by national provisions.
In prEN 14509-3:2021, methods for the determination of characteristics given in this document are
given.
In EN 14509-4:2020, methods for the determination of fixing performance of panels and restraining
effect on substructures are given.
In EN 14509-5:2020, design rules and criteria for combing actions and spans are given.
1 Scope
This document specifies characteristics of factory-made double skin metal faced insulating sandwich
panels for use in elements for self-supporting applications in roofs, in external and internal walls
(including partitions) and in ceilings in buildings (hereafter sandwich panels).
The sandwich panels consist of two faces and insulating core either by using auto-adhesive bonding
technique or by using a separate adhesive layer.
The face materials covered by this document are:
— steel,
— stainless steel,
— aluminium,
NOTE Aluminium covers aluminium alloys.
— copper.
The insulating cores covered by this document are:
— rigid polyurethane (PU) (see 3.1.15);
— expanded polystyrene (EPS) (see 3.1.13);
— extruded polystyrene foam (XPS) (see 3.1.14);
— phenolic foam (PF) (see 3.1.12);
— mineral wool (MW) (see 3.1.11).
For sandwich panels, the coating of faces is either organic and/or metallic coating.
This document specifies procedures for assessment and verification of constancy (AVCP) of
performance of characteristics of sandwich panels.
This document does not cover the following:
— sandwich panels consisting of two or more clearly defined layers of different insulating cores (multi-
layered);
— sandwich panels consisting of more than one metal sheet per face;
— curved sandwich panels;
— sandwich panels with perforated faces;
— fasteners and fixings;
— sandwich panels, placed on the market as a part of clean room kits, conditioning room kits, cold
storage room kits and cold storage building envelope and building kits.
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 485-2:2016+A1:2018, Aluminium and aluminium alloys — Sheet, strip and plate — Part 2: Mechanical
properties
EN 485-4:1993, Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on shape
and dimensions for cold-rolled products
EN 1172:2011, Copper and copper alloys — Sheet and strip for building purposes
EN 1396:2015, Aluminium and aluminium alloys — Coil coated sheet and strip for general applications —
Specifications
EN 10088-1:2014, Stainless steels — Part 1: List of stainless steels
EN 10143:2006, Continuously hot-dip coated steel sheet and strip — Tolerances on dimensions and shape
EN 10346:2015, Continuously hot-dip coated steel flat products for cold forming — Technical delivery
conditions
EN 13165:2012+A2:2016, Thermal insulation products for buildings — Factory made rigid polyurethane
foam (PU) products — Specification
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13501-2:2016, Fire classification of construction products and building elements — Part 2:
Classification using data from fire resistance tests, excluding ventilation services
EN 13501-5:2016, Fire classification of construction products and building elements — Part 5:
Classification using data from external fire exposure to roofs tests
prEN 14509-3:2021, Factory made double skin metal faced insulating sandwich panels — Part 3: Test
methods for determining mechanical strength, building physical behaviour and durability
EN 15254-5:2018, Extended application of results from fire resistance tests — Non-loadbearing walls —
Part 5: Metal sandwich panel construction
EN 15254-7:2018, Extended application of results from fire resistance tests — Non-loadbearing ceilings
— Part 7: Metal sandwich panel construction
EN ISO 6892-1:2019, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2019)
EN ISO 9445 (all parts:2010, Continuously cold-rolled stainless steel — Tolerances on dimensions and form
(ISO 9445)
CEN/TS 1187:2012, Test methods for external fire exposure to roofs
3 Terms, definitions, symbols, subscripts and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
auto-adhesion
self-adhesion of the core to the face(s) occurring automatically without the use of an adhesive
Note 1 to entry: This technique is used by producing panels by foaming.
3.1.2
bond
adhesion between the face(s) and the core
3.1.3
core
layer of material, having insulating properties, which is bonded between two metal faces
Note 1 to entry: Panels with special edge details in the longitudinal joints may utilize different core materials
from the main insulating core (e.g. for improved fire performance) if these edge details have no influence on the
mechanical performance of the panel.
3.1.4
edge
side of the panel where adjacent panels join together in the same plane
3.1.5
face
flat, lightly profiled or profiled thin metal sheet bonded to the core
3.1.6
flat face
face without any rolled or pressed profile, or raised strengthening rib
3.1.7
incompletely bonded face
metal face whose bond to the core is adequate for sandwich action but does not include the entire
surface of the core
Note 1 to entry: An example is a trapezoidally profiled face that has voids between the raised profiles and the
core.
3.1.8
incompletely bonded panel
panel in which one or both faces are incompletely bonded
3.1.9
joint
interface between two panels where the meeting edges have been designed to allow the panels to join
together in the same plane
Note 1 to entry: The joint may incorporate interlocking parts that enhance the mechanical properties of the
system as well as improving the thermal, acoustic and fire performance and restrict air movement.
Note 2 to entry: The term 'joint' does not refer to a junction between cut panels or a junction where the panels
are not installed in the same plane.
3.1.10
lamella
core material consisting of mineral wool that has been cut and orientated with the fibres perpendicular
to the faces prior to bonding
3.1.11
lightly profiled face
face with a rolled or pressed profile not exceeding 5 mm in depth
3.1.12
mineral wool (MW)
insulating wool produced from molten stone, slag or glass
[SOURCE: EN 13162:2012+A1:2015]
3.1.13
phenolic foam (PF)
insulating foam produced from PF
[SOURCE: EN 13166:2012+A2:2016]
3.1.14
expanded polystyrene (EPS)
insulating foam produced from EPS
[SOURCE: EN 13163:2012+A2:2016]
3.1.15
extruded polystyrene foam (XPS)
insulating foam produced from XPS
[SOURCE: EN 13164:2012+A1:2015]
3.1.16
polyurethane (PU)
insulating rigid foam produced from PUR or PIR
[SOURCE: EN 13165:2012+A2:2016]
3.1.17
pre-manufactured
component or material that is supplied to the manufacturer ready for direct incorporation into the
sandwich panel
3.1.18
shift
period of production during a working day, normally 6 h to 8 h but can be less
3.1.19
wrinkling strength
strength representing the characteristic value of wrinkling stress at the moment of failure load
3.2 Symbols, subscripts and abbreviations
For the purposes of this document, the following symbols, subscripts and abbreviations apply.
3.2.1 Symbols
D overall thickness of the panel
E modulus of elasticity
G shear modulus
L length of span,
length of measurement
R sound reduction index (R ),
w
strength,
load bearing capacity
T temperature
U thermal transmittance
b width of rib and valley in metal face profile
d depth,
continuous depth of core d ,
C
depth of stiffener d
s
f strength
h depth of metal face profile
k stress distribution factor over support,
relation between strength after ageing and initial strength
m mass
t thickness of face sheet
w cover width
x, y, z coordinates
α sound absorption (α ),
w
λ thermal conductivity,
λ (design value),
Design
φ creep coefficient
σ wrinkling strength
3.2.2 Subscripts
C core
D expressed thermal conductivity (λ )
D
c compression,
d design,
expressed thermal transmittance including the influence of the joints U
d,S
k characteristic
m mean
s support
stiffener
t tensile,
tension,
time
T temperature
tr traffic (Ctr)
v shear
w wrinkling (σw),
weighted (Rw)
0 basic value,
time (e.g. t = 0)
3.2.3 Abbreviations
AVCP assessment and verification of constancy of performance
CEN European Committee for Standardization
CWT classified without testing
EN European standard
EPS expanded polystyrene
FPC factory production control
ISO International Organisation for Standardization
MW mineral wool (covers stone wool and glass wool)
PCS gross calorific potential
PE Polyester coating
PU rigid polyurethane foam (covers also PIR)
PF phenolic foam
XPS extruded polystyrene foam
4 Characteristics
4.1 Mechanical resistance
4.1.1 General
Mechanical resistance of the sandwich panels consists of the following proxy characteristics:
— characteristics of metal faces (as specified in 4.1.2)
- yield strength
- nominal thickness
- tolerances of thickness
— shear strength for short term loading (as specified in 4.1.3)
— shear modulus for short term loading (as specified in 4.1.4)
— creep coefficients (not relevant for wall applications) (as specified in 4.1.5)
— compressive strength (as specified in 4.1.6)
— compressive modulus (as specified in 4.1.7)
— shear strength after long-term loading (not relevant for wall applications) (as specified in 4.1.8)
— cross panel tensile strength (as specified in 4.1.9)
— cross panel tensile modulus (as specified in 4.1.10)
— wrinkling strength (as specified in 4.1.11)
— wrinkling strength in elevated temperature (as specified in 4.1.12)
— wrinkling strength over a central support (not relevant for single span panels)(as specified in
4.1.13)
— wrinkling strength over support in elevated temperature (as specified in 4.1.14)
(not relevant for single span panels)
— stress distribution parameter k on support (as specified in 4.1.15)
The values to be expressed shall be given with two significant digits.
4.1.2 Characteristics of metal faces
4.1.2.1 Yield strength
a) Steel faces
4.1.2.1.a Steel faces (other than stainless steel) shall be steel according to EN 10346:2015,
Table 2.
4.1.2.1.b The yield strength shall have a minimum value of 220 MPa.
4.1.2.1.c Performance shall be jointly expressed as indication of the used steel grade.
EXAMPLE S250GD.
b) Stainless steel faces
4.1.2.1.d Stainless steel faces shall be steel according to EN 10088-1:2014, Clause 4.
4.1.2.1.e The yield strength shall have a minimum value of 220 MPa.
4.1.2.1.f Performance shall be expressed as indication of the used stainless steel grade together
with the value of the yield strength [MPa].
EXAMPLE EN 1.4301 (230)
c) Aluminium faces
4.1.2.1.g The chemical composition, temper and mechanical properties of aluminium faces shall
be according to EN 485-2:2016+A1:2015, Clause 4 for non-coated sheet and EN 1396:2015, Clause 5 for
coil coated sheet.
4.1.2.1.h The yield strength (0,2 %-strain limit) strength shall have a minimum value of 140 MPa.
4.1.2.1.i Performance shall be expressed as indication of the used aluminium alloy designation
code together with the value of the yield strength [MPa].
EXAMPLE Alloy EN AW-5454 (180).
d) Copper faces
4.1.2.1.j The chemical composition, temper, mechanical properties of copper faces shall be
according to EN 1172:2011, Table 2.
4.1.2.1.k The yield strength (0,2 %-strain limit) shall have a minimum value of 140 MPa.
4.1.2.1.l Performance shall be expressed as indication of the used copper number / material
condition together with the value of the yield strength [MPa].
EXAMPLE CW024A / R240 (140).
4.1.2.2 Nominal thickness
a) Steel faces
The nominal thickness of steel face shall be measured according to EN 10143:2006, Clause 6
and the performance expressed as indication of the value in millimetres.
b) Stainless steel faces
The nominal thickness of stainless steel face shall be determined in accordance with
EN ISO 9445-2:2010, Clause 7 and the performance expressed as indication of the value in millimetres.
c) Aluminium faces
The nominal thickness of aluminium face shall be determined in accordance with EN 485-4:1993,
Table 1 and the performance expressed as indication of the value in millimetres.
d) Copper faces
The nominal thickness of copper face shall be determined in accordance with EN 1172:2011, Table 3
and the performance expressed as indication of the value in millimetres.
4.1.2.3 Tolerances of thickness
a) Steel faces
Tolerances of thickness of steel face shall be measured according to EN 10143:2006, Clause 6.
Tolerances on thickness shall be expressed as indication of “special” or “normal” as described in
EN 10143:2006, Clause 6.
b) Stainless steel faces
Tolerances of thickness of stainless steel face shall be measured according to EN ISO 9445-2:2010.
Tolerances on thickness shall be expressed as indication of “special” or “normal” as described in
EN ISO 9445-2:2010, Table 1.
c) Aluminium faces
Tolerances of thickness of aluminium face shall be measured according to EN 485-4:1993, Table 1 and
shall be expressed as indication of the group of alloy “I” or “II”.
d) Copper faces
Tolerances of thickness of copper face shall be measured according to EN 1172:2011, Table 3 and shall
be expressed as indication “criterion met”.
4.1.3 Shear strength (f ) for short-term loading
Cv
4.1.3.1 The shear strength for short-term loading shall be determined according to the procedure
in prEN 14509-3:2021, 4.3 (shear beam) considering this as a reference method; alternatively, the
procedure specified in prEN 14509-3:2021, 4.4 (complete panel) may be used (see Table 1).
NOTE 1 The results of the tests with complete panels gives the same or better values than those with the shear
beam.
NOTE 2 When using the shear beam method for panels with profiled faces, then the design method in
prEN 14509-5:2021, 4.8 can be used.
Table 1—Determination of shear strength and shear modulus for short-term loading
Method for calculation of test results
Test setup
(see relevant clause in
(see relevant
prEN 14509-3:2021 below)
Face geometry clause in Comments
Shear strength Shear modulus
prEN 14509-3:20
for short-term for short-term
21 below)
loading loading
Reference method.
May be used in all
Flat or lightly 4.3 – point loads
4.3.5 4.3.5 situations unless
profiled faces (shear beam)
practical criteria
dictate otherwise.
4.4.5.2 and
All geometries 4.4.5.2
4.4 – point loads 4.3.5.2
(complete Alternative to 4.3.
One or both faces
panel)
4.4.5.3 4.4.5.3
profiled
4.4 – Vacuum
All geometries 4.4.5.4 4.4.5.4
chamber or air
Alternative to the
bag loading
use of point loads
One or both faces
(complete
4.4.5.5 4.4.5.5
profiled
panel)
4.1.3.2 The performance of the shear strength for short-term loading of the sandwich panel shall be
expressed as indication of the characteristic value in megapascals (MPa) together with test setup (shear
beam or complete panel).
EXAMPLE f = 0,053 MPa (shear beam).
Cv
4.1.4 Shear modulus (G ) for short-term loading
c
4.1.4.1 The shear modulus for short-term loading shall be determined according to the procedure
in prEN 14509-3:2021, 4.3 (shear beam) considering this as a reference method; alternatively, for these
panels the procedure specified in prEN 14509-3:2021, 4.4 (complete panel) may be used (see Table 1).
NOTE 1 The results of the tests with complete panels gives the same or better values than those with the shear
beam.
NOTE 2 When using the shear beam method for panels with profiled faces, then the design method in
prEN 14509-5:2020, 4.8 can be used.
4.1.4.2 The performance of the shear modulus of the sandwich panel shall be expressed as
indication of the mean value in megapascals (MPa) together with test setup (shear beam or complete
panel).
EXAMPLE G = 5,2 MPa (complete panel).
c
4.1.5 Creep coefficient (φ )
t
4.1.5.1 The creep coefficient shall be determined using the procedure in prEN 14509-3:2021, 4.7.
4.1.5.2 The performance of the creep coefficient of the sandwich panel shall be expressed as
indication of values with two digits for φ , for load duration of 2 000 h and for φ , for load
2000 100000
duration 100 000 h.
EXAMPLE φ = 1,0 and φ = 3,0.
2000 100000
4.1.6 Compressive strength (f )
Cc
4.1.6.1 The compressive strength f shall be determined using the procedure in
Cc
prEN 14509-3:2021, 4.2.
4.1.6.2 The performance of the compressive strength of the sandwich panel shall be expressed as
indication of the characteristic value in megapascals (MPa).
EXAMPLE f = 0,085 Mpa.
Cc
4.1.7 Compressive modulus (E )
Cc
4.1.7.1 The compressive modulus E shall be determined using the procedure in
Cc
prEN 14509-3:2021, 4.2.
4.1.7.2 The performance of the compressive modulus of the sandwich panel shall be expressed as
indication of the mean value in megapascals (Mpa).
EXAMPLE E = 2,4 Mpa.
Cc
4.1.8 Shear strength after long-term loading (f )
Cv long-term
4.1.8.1 The shear strength after long term loading of a sandwich panel shall be determined
according to the procedure in prEN 14509-3:2021, 4.3 (shear beam) considering this as a reference
method; alternatively, the procedure specified in prEN 14509-3:2021, 4.4 (complete panel) may be
used) (see Table 1).
NOTE 1 The results of the tests with complete panels gives the same or better values than those with the shear
beam.
NOTE 2 When using the shear beam method for panels with profiled faces, then the design method in
prEN 14509-5:2020, 4.8 can be used.
4.1.8.2 The performance of the shear strength after long term loading of the sandwich panel shall
be expressed as indication of the characteristic value in megapascals (MPa) together with the test
method.
EXAMPLE f = 0,034 MPa (complete panel).
Cv long-term
4.1.9 Cross panel tensile strength (f )
Ct
4.1.9.1 The tensile strength perpendicular to the panel faces shall be determined using the
procedure in prEN 14509-3:2021, 4.1.
4.1.9.2 The result obtained shall be higher than 0,05 MPa.
4.1.9.3 The performance of the cross panel tensile strength of the sandwich panel shall be expressed
as indication of the characteristic value in megapascal (MPa).
EXAMPLE f = 0,105 MPa.
Ct
4.1.10 Cross panel tensile modulus (E )
Ct
4.1.10.1 The cross panel tensile modulus E shall be determined using the procedure in
Ct
prEN 14509-3:2021, 4.1.
4.1.10.2 The performance of the cross panel tensile modulus of the sandwich panel shall be
expressed as indication of the mean value in megapascals (MPa).
EXAMPLE E = 12,1 MPa.
Ct
4.1.11 Wrinkling strength (σ )
w
4.1.11.1 The wrinkling strength for each face shall be obtained:
a) without testing by using calculation according to prEN 14509-3:2021, 4.6.6 for PU
foamed panels without joints in the core.
b) by testing using the procedure in prEN 14509-3:2021, 4.6
4.1.11.2 The performance of the wrinkling strength of the sandwich panel shall be expressed as
indication in megapascal (MPa) together with the method (by testing or by calculation) and relevant
face.
EXAMPLE 1 σ = 143 MPa (external face) (by testing)
w
σ = 125 MPa (internal face) (by testing)
w
EXAMPLE 2 σ = 135 MPa (both faces) (by testing)
w
EXAMPLE 3 σ = 95 MPa (both faces) (by calculation)
w
4.1.12 Wrinkling strength at elevated temperature (σ )
wT
4.1.12.1 The wrinkling strength for external face in elevated temperature shall be determined in
accordance with prEN 14509-3:2021, 4.6.7.
4.1.12.2 The performance of the wrinkling strength in elevated temperature of the sandwich panel
shall be expressed as indication of the characteristic value in megapascals (MPa) together with the
relevant face.
EXAMPLE σ = 128 MPa (external face) (by testing and calculation)
wT
4.1.13 Wrinkling strength over a central support (σ )
ws
4.1.13.1 The wrinkling strength over central support for each face shall be determined using the
procedure in prEN 14509-3:2021, 4.8.
4.1.13.2 The performance of the wrinkling strength over a central support of the sandwich panel
shall be expressed as indication of the characteristic value in megapascals (MPa) together with the width
of the support (test acc. to prEN 14509-3:2021, Figure 4.14, L ) and number of screws (test acc. to
B
prEN 14509-3:2021, Figure 4.14).
NOTE The wrinkling strength over central support is relevant for panels which are continuous over two or
more spans.
EXAMPLE σ = 115 MPa (external face, 5 screws) (by testing)
ws
σ = 75 MPa (internal face, 60 mm) (by testing)
ws
4.1.14 Wrinkling strength over a central support at elevated temperature (σ )
wsT
4.1.14.1 The wrinkling strength over a central support in elevated temperature shall be determined
in accordance with prEN 14509-3:2021, 4.9 for both downward loading or uplift loading.
4.1.14.2 The performance of the wrinkling strength over a central support in elevated temperature
of the sandwich panel shall be expressed as indication of the characteristic value in megapascals (MPa)
together with the relevant face and support width or number of fasteners used in test.
EXAMPLE σ = 107 MPa (external face, 5 screws) (by testing and calculation)
wsT
4.1.15 Stress distribution factor over a support (k)
4.1.15.1 The stress distribution factor over a support k shall be determined in accordance with the
procedure in prEN 14509-3:2021, 4.11.
4.1.15.2 The performance of the stress distribution factor over a support, k, of the sandwich panel
shall be expressed as indication of mean value a numbered value together with indication on end or
central support.
EXAMPLE k = 0,75 (end support)
4.2 Thermal transmittance
4.2.1 The thermal transmittance of the sandwich panel shall be determined in accordance with
prEN 14509-3:2021, 6.3 as a reference method or with prEN 14509-3:2021, 6.4 as an alternative
method.
4.2.2 The performance of the thermal transmittance of the sandwich panel shall be expressed as
indication of the value U (W/m K) together with λ (W/mK) of the core.
d,S D
EXAMPLE Ud,S = 0,22 W/m K (λ = 0,032 W/mK).
D
4.3 Reaction to fire
4.3.1 The reaction to fire performance of a sandwich panel shall be determined in accordance with
the test method(s), given in the standard(s), referred in EN 13501-1:2018, relevant for the expressed
class of the reaction to fire performance, amongst those set up in the series of such classes, also specified
therein.
Mounting and fixing rules of sandwich panels shall be as specified in prEN 14509-3:2021, 13.1.
For sandwich panels with adhesives layers additional provisions as specified in prEN 14509-3:2021,
13.4 shall apply.
Direct field of application of test results shall be as specified in in prEN 14509-3:2021, 13.1.3.
4.3.2 The performance of the reaction to fire of the sandwich panel shall be expressed as indication of
the reaction to fire class together with the tested face of the panel.
EXAMPLE B s2 d0 (internal face)·
4.4 Resistance to fire
4.4.1 The resistance to fire performance of a sandwich panel shall be determined in accordance with
the test method(s), given in the standard(s), referred in EN 13501-2:2016, for one or more of the
following criteria:
— load-bearing capacity (R);
— integrity (E);
— insulation (I);
— radiation (W);
— mechanical action (M).
Mounting and fixing rules of panels shall be as specified in in prEN 14509-3:2021, 13.2.1 (walls) and
13.2.2 (roofs and ceilings).
Direct field of application of test results shall be specified in prEN 14509-3:2021, 13.2.1.
Rules for extended applications shall be as specified in EN 15254-5:2018 (walls) and EN 15254-7:2018
(roofs and ceilings).
4.4.2 The performance of the resistance to fire of the sandwich panel for the relevant criteria shall be
expressed according to EN 13501-2:2016 together with the indication of:
— application of the panel
EXAMPLE 1 EI 60 (partition wall)
— application of the panel and the loads used in the test for roof and ceiling panels
EXAMPLE 2 REI 30 (ceiling, own weight + 0,5 kN/m external load)
4.5 External fire performance – roofs
4.5.1 In general, the external fire performance of roof and roof coverings indicates the behaviour of
the products when subject to the spread of fire from neighbouring construction works. Therefore, the
external fire performance of a sandwich panel shall be expressed as a relevant class of external fire
performance, according to EN 13501-5:2016, and may be established based on one of the following
options:
a) Without need for testing (CWT).
Whether a sandwich panel fulfils conditions under which it has demonstrated of having a stable external
fire performance in a given class, then the class B (t1), B (t2), B (t3) may apply
ROOF ROOF ROOF
for expression of the external fire performance of this sandwich panel.
b) According to the result of one of the four test methods, as specified in CEN/TS 1187.
The external fire performance of a sandwich panel shall be determined in accordance with one of the
.
four test methods, specified as (t1) to (t4) in CEN/TS1187:2012
When considering conditioning and preparation of test specimens for the test methods (t1) to (t4), as
well as direct field of application of test results, additional provisions, as individually specified for test
methods in prEN 14509-3:2021, 13.3, shall apply.
4.5.2 The performance of the external fire of the sandwich panel shall be expressed with indication of
a relevant class of external fire performance together with indication on one of the four used test
methods and CWT if applied.
EXAMPLE 1 B (t1)(CWT)
Roof
EXAMPLE 2 B (t2)
Roof
4.6 Dimensional tolerances
4.6.1 The dimensional tolerances for dimensional properties of sandwich panels shall be in measured
and the results evaluated in accordance with Table 2.
Table 2 — Dimensional properties
Dimensional property Measurement Tolerance
method
(see relevant clause
in
prEN 14509-3:202
1 below)
d ≤ 100 mm; ± 2 mm
t
a
14.2.1
Thickness of the panel
d > 100 mm; ± 2 %
t
For L = 200 mm – Deviation from
flatness ≤ 0,6 mm
Deviation from flatness
For L = 400 mm – Deviation from
(according to the length of 14.2.2
flatness ≤ 1,0 mm
measurement L)
For L > 700 mm – Deviation from
flatness ≤ 1,5 mm
5 mm < h ≤ 50 mm; ± 1 mm
Depth of metal profile (ribs)
14.2.3
(mm) 50 mm < h ≤ 100 mm; ± 2,5 mm
Table in Annex of the Commission Decision 2006/600/EC, of 4 September 2006 (see OJEU, L 244, of 2006-09-07).
Table in Annex of the Commission Decision 2001/671/EC, of 21 August 2001 (see OJEU, L235, of 2001-09-04), as amended
by Commission Decision 2005/823/EC, of 22 November 2005 (see OJEU, L 307, of 2005-11-25).
Dimensional property Measurement Tolerance
method
(see relevant clause
in
prEN 14509-3:202
1 below)
d ≤ 1 mm; ± 30 % of d
s s
Depth of stiffeners and light
1 mm < d ≤ 3 mm; ± 0,3 mm
s
14.2.4
profiling
3 mm < d ≤ 5 mm; ± 10 % of d
s s
b , b ; ± 1 mm
1 3
Width of stiffeners and light
14.2.4
profiling
b
± 2 mm
Pitch of stiffeners and light
14.2.4 p
± 2 mm
profiling
L ≤ 3 m; ± 5 mm
Length of the panel 14.2.5
L > 3 m; ± 10 mm
Cover width of the panel 14.2.6 w ± 2 mm
Deviation from squareness 14.2.7 ≤ 0,006 × w (nominal cover width)
Deviation from straightness ≤ 1 mm per metre, maximum 5 mm
14.2.8
(on length)
≤ 2 mm per metre length, maximum 20 mm
≤ 8,5 mm per metre width for flat or lightly
Bowing 14.2.9 profiled – h ≤ 10 mm
≤ 10 mm per metre width for profiles –
h > 10 mm
If h ≤ 50 mm p: ± 2 mm
Pitch of the profile (p) 14.2.10
If h > 50 mm p: ± 3 mm
Width of the ribs (b ) and 14.2.11 For b ± 1 mm
1 1
width of the valleys (b )
For b ± 2 mm
a
For determination of the thickness d of panels with profiled faces, see prEN 14509-3:2021, Figure 14.1.
t
4.6.2 When the applicable tolerances are satisfied, the performance of dimensional tolerances of the
sandwich panel shall be jointly expressed with indication “criteria met”.
EXAMPLE criteria met
4.7 Water permeability
4.7.1 Water permeability of the product
4.7.1.1 The permeability of the sandwich panel shall be done by visual inspection.
4.7.1.2 There shall be no perforation of the faces allowed.
4.7.1.3 The performance of water permeability of the sandwich panel shall be expressed with the
indication “water impermeable”.
4.7.2 Water permeability of a joint
4.7.2.1 The performance of water permeability of a joint of sandwich panels shall be determined
according to prEN 14509-3:2021, Clause 7.
4.7.2.2 The results obtained shall be evaluated and expressed in the following:
— Level A - Demanding applications with heavy rain and wind, when the joint shall be watertight up
to air pressure 1 200 Pa;
— Level B - Normal applications, when the joint shall be watertight up to air pressure 600 Pa;
— Level C - Less demanding applications, when the joint shall be watertight up to air pressure 300 Pa.
EXAMPLE Level A
4.8 Air permeability
4.8.1 Air permeability of the product
4.8.1.1 The permeability of the sandwich panel shall be done by visual inspection.
4.8.1.2 There shall be no perforation of the faces allowed.
4.8.1.3 The performance of air permeability of the sandwich panel shall be expressed with the
indication “air impermeab
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