SIST EN 14509:2007
(Main)Self-supporting double skin metal faced insulating panels - Factory made products - Specifications
Self-supporting double skin metal faced insulating panels - Factory made products - Specifications
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 utilize 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, will be covered by a future ETA-Guideline “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.
Selbsttragende Sandwich-Elemente mit beidseitigen Metalldeckschichten - Werkmäßig hergestellte Produkte - Spezifikationen
Diese Europäische Norm legt Anforderungen an werkmäßig hergestellte selbsttragende Sandwichelemente mit beidseitigen Metalldeckschichten fest, die für elementweise Verlegung mit übergreifenden oder überlappenden Längsfugen in folgenden Anwendungen bestimmt sind:
a) Dächer und Dachdeckungen;
b) Außenwände und Wandbekleidungen;
c) Wände (einschließlich Trennwände) und (Unter )Decken innerhalb der Gebäudehülle.
Die von dieser Europäischen Norm 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 Fugenausführungen, für die andere Werkstoffe als die für den Hauptdämmkern verwendet werden, sind Bestandteil dieses Dokuments.
Dämmelemente für Kühllageranwendungen sind Bestandteil dieser Europäischen Norm. Dämmelemente, die als Bauteil für einen Kühllagerraum, für Gebäude und/oder als Bausatz für die Gebäudehülle auf den Markt gebracht werden, werden von der ETA Richtlinie 021 Bausätze für Kühlhäuser abgedeckt.
Diese Europäische Norm gilt nicht für:
a) Sandwichelemente mit einer Soll Wärmeleitfähigkeit des Dämmkerns größer als 0,06 W/(m K) bei 10 °C;
b) Produkte, die aus zwei oder mehr eindeutig festgelegten Schichten unterschiedlicher Dämmkern¬werkstoffe bestehen (Mehrschicht Produkte);
c) Elemente mit perforierter/perforierten Deckschicht(en);
d) gekrümmte Elemente.
Panneaux sandwiches autoportants, isolants, double peau a parements métalliques - Produits manufacturés - Spécifications
Cette Norme européenne spécifie les exigences pour les panneaux sandwich manufacturés autoportants, isolants, double peau a parements métalliques, utilisés pour la pose en discontinu dans les cas suivants :
a) toitures et couvertures ;
b) bardages ;
c) autres parois verticales (cloisons comprises) et plafonds dans l'enveloppe du bâtiment.
Les matériaux d'âme isolants traités par cette Norme européenne sont : la mousse de polyuréthane rigide, la mousse de polystyrene expansée, la mousse de polystyrene extrudée, la mousse phénolique et la laine minérale.
Les produits comportant deux ou plusieurs couches clairement définies de différents matériaux d'âme isolants (multicouches) ne sont pas couverts par cette Norme européenne.
Les panneaux sandwich dont la conductivité thermique de l'âme isolante est supérieure a 0,06 W/m.K a 1 °C ne sont pas couverts par cette Norme européenne.
Les panneaux dont les emboîtements utilisent des matériaux différents de ceux de l'âme isolante principale, comme pour les extrusions en PVC ou les emboîtements profilés en laine minérale, sont traités par cette Norme européenne.
Samonosilne izolacijske sendvič plošče z obojestranskim kovinskim oplaščenjem - Tovarniško izdelani proizvodi - Specifikacije
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Self-supporting double skin metal faced insulating panels - Factory made products - SpecificationsPanneaux sandwiches autoportants, isolants, double peau a parements métalliques - Produits manufacturés - SpécificationsSelbsttragende Sandwich-Elemente mit beidseitigen Metalldeckschichten - Werkmäßig hergestellte Produkte - SpezifikationenTa slovenski standard je istoveten z:EN 14509:2006SIST EN 14509:2007en,fr,de91.100.60Thermal and sound insulating materialsICS:SLOVENSKI
STANDARDSIST EN 14509:200701-marec-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14509November 2006ICS 91.100.60 English VersionSelf-supporting double skin metal faced insulating panels -Factory made products - SpecificationsPanneaux sandwiches autoportants, isolants, double peauà parements métalliques - Produits manufacturés -SpécificationsSelbstragende Sandwich-Elemente mit beidseitigenMetalldeckschichten - Werkmäßig hergestellte Produkte -SpezifikationenThis European Standard was approved by CEN on 19 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14509:2006: E
EN 14509:2006 (E) 2 Contents Page Foreword.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.8 4 Symbols and abbreviations.9 5 Requirements, properties and test methods.12 5.1 Requirements for component materials.12 5.2 Properties of panels.14 5.3 Actions and safety level requirements.20 6 Evaluation of conformity, testing, assessment and sampling methods.21 6.1 General.21 6.2 Type testing – ITT.21 6.3 Factory Production Control (FPC).25 7 Classification and designation.31 8 Marking, labelling and packaging.32 8.1 Marking and labelling.32 8.2 Packaging, transport, storage and handling.33 Annex A (normative)
Testing procedures for material properties.34 A.1 Cross panel tensile test.34 A.2 Compressive strength and modulus of the core material.37 A.3 Shear test on the core material.38 A.4 Test to determine the shear properties of a complete panel.43 A.5 Test to determine the bending moment capacity and stiffness of a simply supported panel.45 A.6 Determination of the creep coefficient (ϕϕϕϕt).53 A.7 Interaction between bending moment and support force.55 A.8 Determination of apparent core density and mass of panel.57 A.9 Test for resistance to point loads and repeated loads.59 A.10 Calculation method for the determination of the thermal transmittance of a panel (U).60 A.11 Water permeability – resistance to driving rain under pulsating pressure.65 A.12 Air permeability.66 A.13 Airborne sound insulation.66 A.14 Sound absorption.67 A.15 Support reaction capacity at the end of a panel.67 A.16 Recording and interpretation of test results.70 Annex B (normative)
Durability testing method for sandwich panels.72 B.1 Principle.72 B.2 Test DUR1.72 B.3 Test DUR2.74 B.4 Test report on durability tests.77 B.5 Adhesive bond between faces and prefabricated core material (wedge test).78 B.6 Repeated loading test.80 B.7 Thermal shock test.81 Annex C (normative)
Fire performance tests – additional instructions and direct field of application.83 C.1 Reaction to fire.83
EN 14509:2006 (E) 3 C.2 Fire resistance.89 C.3 Fire tests ENV 1187 - external fire performance for roofs.92 C.4 Determination of the amount and thickness of the adhesive layer.93 Annex D (normative)
Dimensional tolerances.96 D.1 General.96 D.2 Dimensional tolerances.96 Annex E (normative)
Design procedures.106 E.1 Definitions and symbols.106 E.2 General.108 E.3 Actions.109 E.4 Resistance.110 E.5 Combination rules.113 E.6 Combination coefficients and safety factors.116 E.7 Calculation of the effects of actions.118 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.127 ZA.1 Scope and relevant characteristics.127 ZA.2 Procedures for the attestation of conformity of sandwich panels.129 ZA.3 CE Marking and labelling.134 Bibliography.147
EN 14509:2006 (E) 4 Foreword This document (EN 14509:2006) 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 IBN/BIN. 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 May 2007, and conflicting national standards shall be withdrawn at the latest by August 2008. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 14509:2006 (E) 5 1 Scope 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 utilize 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. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 485-2, Aluminium and aluminium alloys — Sheet, strip and plate — Part 2: Mechanical properties EN 485-4, Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on shape and dimensions for cold-rolled products EN 502, Roofing products from metal sheet — Specification for fully supported roofing products of stainless steel sheet EN 508-1, Roofing products from metal sheet — Specification for self-supporting products of steel, aluminium or stainless steel sheet — Part 1: Steel EN 826, Thermal insulating products for building applications — Determination of compression behaviour EN 1172, Copper and copper alloys — Sheet and strip for building purposes
EN 14509:2006 (E) 6 ENV 1187, Test methods for external fire exposure to roofs EN 1363-1:1999, Fire resistance tests — Part 1: General requirements EN 1364-1:1999, Fire resistance tests for non-loadbearing elements — Part 1: Walls EN 1364-2, Fire resistance tests for non-loadbearing elements — Part 2: Ceilings EN 1365-2, Fire resistance tests for loadbearing elements — Part 2: Floors and roofs EN 1396, Aluminium and aluminium alloys — Coil coated sheet and strip for general applications — Specifications EN 1602, Thermal insulating products for building applications — Determination of the apparent density EN 1607, Thermal insulating products for building applications — Determination of tensile strength perpendicular to faces EN 1990, Eurocode — Basis of structural design EN 1991, Eurocode 1: Actions on structures (all parts) EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature EN 10088-1, Stainless steels — Part 1: List of stainless steels EN 10143, Continuously hot-dip coated steel sheet and strip — Tolerances on dimensions and shape EN 10169-1, Continuously organic coated (coil coated) steel flat products — Part 1: General information (definitions, materials, tolerances, test methods) EN 10169-2, Continuously organic coated (coil coated) steel flat products — Part 2: Products for building exterior applications EN 10169-3, Continuously organic coated (coil coated) steel flat products — Part 3: Products for building interior applications EN 10204, Metallic products — Types of inspection documents EN 10326, Continuously hot-dip coated strip and sheet of structural steels — Technical delivery conditions EN 10327, Continuously hot-dip coated strip and sheet of low carbon steels for cold forming — Technical delivery conditions EN 12085, Thermal insulating products for building applications — Determination of linear dimensions of test specimens EN 12114, Thermal performance of buildings — Air permeability of building components and building elements — Laboratory test method EN 12524, Building materials and products — Hygrothermal properties — Tabulated design values EN 12865, Hygrothermal performance of building components and building elements — Determination of the resistance of external wall systems to driving rain under pulsating air pressure EN 13162, Thermal insulation products for buildings — Factory made mineral wool (MW) products — Specification
EN 14509:2006 (E) 7 EN 13163, Thermal insulation products for buildings — Factory made products of expanded polystyrene (EPS) — Specification EN 13164, Thermal insulation products for buildings — Factory made products of extruded polystyrene foam (XPS) — Specification EN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PUR) products — Specification EN 13166, Thermal insulation products for buildings — Factory made products of phenolic foam (PF) — Specification EN 13167, Thermal insulation products for buildings — Factory made cellular glass (CG) products — Specification CEN/TS 13381-1, Test methods for determining the contribution to the fire resistance of structural members — Part 1: Horizontal protective membranes EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using test data from reaction to fire tests EN 13501-2, Fire classification of construction products and building elements — Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification using data from external fire exposure to roofs tests EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item EN 14135, Coverings — Determination of fire protection ability EN ISO 140-3, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3: Laboratory measurements of airborne sound insulation of building elements (ISO 140-3:1995) EN ISO 354, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (ISO 717-1:1996) EN ISO 1182, Reaction to fire tests for building products — Non-combustibility test (ISO 1182:2002) EN ISO 1716, Reaction to fire tests for building products — Determination of the heat of combustion (ISO 1716:2002) EN ISO 6946, Building components and building elements — Thermal resistance and thermal transmittance — Calculation method (ISO 6946:1996) EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000) EN ISO 9445, Continuously cold-rolled stainless steel narrow strip, wide strip, plate-sheet and cut lengths – Tolerances on dimensions and form (ISO 9445:2002) EN ISO 10211-1, Thermal bridges in building construction — Heat flows and surface temperatures — Part 1: General calculation methods (ISO 10211-1:1995) EN ISO 10211-2, Thermal bridges in building construction — Calculation of heat flows and surface temperatures — Part 2: Linear thermal bridges (ISO 10211-2:2001)
EN 14509:2006 (E) 8 EN ISO 10456, Building materials and products — Procedures for determining declared and design thermal values (ISO 10456:1999) EN ISO 11654, Acoustics — Sound absorbers for use in buildings — Rating of sound absorption (ISO 11654:1997) EN ISO 11925-2, Reaction to fire tests — Ignitability of building products subjected to direct impingement of flame — Part 2: Single-flame source test (ISO 11925-2:2002) ISO 12491, Statistical methods for quality control of building materials and components 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 auto-adhesion self adhesion of the core to the face(s) occurring automatically without the use of an adhesive 3.2 bond, bonding adhesion between the face(s) and the core normally provided by an adhesive 3.3 ceiling covering over an internal area 3.4 core layer of material, having thermal insulating properties, which is bonded between two metal faces 3.5 durability ability of the panel to withstand the environmental effects and accommodate the consequent decrease in mechanical strength with time caused by factors such as temperature, humidity, freeze-thaw cycles and their various combinations 3.6 edge, longitudinal edge side of the panel where adjacent panels join together in the same plane 3.7 face, facing flat, lightly profiled or profiled thin metal sheet firmly bonded to the core 3.8 flat facing facing without any rolled or pressed profile, or raised strengthening rib 3.9 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 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 restricting air movement.
EN 14509:2006 (E) 9 NOTE 2 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. 3.10 lamella core material consisting of mineral wool that has been cut and orientated with the fibres perpendicular to the facings prior to bonding 3.11 lightly profiled facing facing with a rolled or pressed profile not exceeding 5 mm in depth 3.12 pre-manufactured, pre-formed component or material that is supplied to the manufacturer ready for direct incorporation into the sandwich panel 3.13 sandwich panel building product consisting of two metal faces positioned on either side of a core that is a thermally insulating material, which is firmly bonded to both faces so that the three components act compositely when under load 3.14 self-supporting panel panel capable of supporting, by virtue of its materials and shape, its self-weight and in the case of panels fixed to spaced structural supports all applied loadings (e.g. snow, wind, internal air pressure), and transmitting these loadings to the supports 3.15 shift period of production during a working day, normally 6 h to 8 h but can be less 3.16 side lap folded area of one or both of the facing materials along the longitudinal edge of the panel which engages with the adjacent panel to form an interlocking or overlapping joint 4 Symbols and abbreviations For the purposes of this European Standard, the following symbols and abbreviations apply. A cross-sectional area B flexural rigidity, overall width of the panel/specimen, width of support (Bs) C ratio D overall depth of the panel E modulus of elasticity F force, load, support reaction G shear modulus, permanent action I moment of inertia L span, distance M bending moment
EN 14509:2006 (E) 10 N axial compressive force Q variable action R resistance, sound reduction index (Rw), reflectivity (RG), tensile strength (RDUR, R24) S shear rigidity, value of a load effect, effect of an action T temperature U thermal transmittance V shear force a distance apart of clips (A.10.4) b width of test specimen, width of plate, width of ribs/valleys, bowing d depth of face profile or stiffeners, depth of core (dc) e distance between centroids of faces, base of natural logarithms (e = 2,718 282) f strength, yield stress, thermal transmittance contribution factor (fjoint) h height of profile, thickness (e.g. glue) k parameter (E.4.3.2 support reaction capacity), correction factor l length, deviation m mass n number of tests, number of screws, number of webs p pitch of profile q live load r radius s length of web (sw1) t thickness of face sheet v variance factor w deflection, displacement, compression, cover width x, y, z coordinates α parameter (A.5.5.4), coefficient of thermal expansion, sound absorption (αw) β parameter (A.5.5.4 and Table E.10.2 design equations) / deviation φ angle γ shear strain, partial safety factor
thermal conductivity, Design (design value) ϕ creep coefficient θ parameter (Table E.10.1 design equations)
EN 14509:2006 (E) 11 σ stress, compressive strength σm, standard deviation τ shear stress ψ combination coefficient (Annex E), linear thermal transmittance of joints (A.10.3)
coefficient, density Subscripts C core D declared value (RD) F face, action (γF) G self-weight, degree M material (γM) Q variable action S sandwich part of the cross-section adj adjusted b bending, elastic extension c compression, core, carrier (C.4.3.2), clip (fjoint,c) d design e external, additional thickness of main profiles (ûe) eff effective f load, facing (fi) i internal (fi) i, j index k characteristic value lin linear m material n nominal nc without clip (fjoint,nc) obs observed (e.g. result) q uniform load s support (Ls = support width), stiffeners, surface (Rs1) t tension, time tol tolerance (normal or special) tr traffic (Ctr) u ultimate (Fu)
EN 14509:2006 (E) 12 v shear, variance w wind, web, wrinkling (σw), weighted (Rw) y yield 0 basic value, unit width, time (e.g. t = 0) 1 external face, upper face 2 internal face, lower face Abbreviations CG
cellular glass CWFT classified without further testing EPS expanded polystyrene FPC factory production control ITT
initial type test MW
mineral wool NPD no performance determined PCS gross calorific potential PUR rigid polyurethane foam (the abbreviation PUR includes polyisocyanurate foam (PIR)) PF
phenolic foam XPS extruded polystyrene foam 5 Requirements, properties and test methods 5.1 Requirements for component materials 5.1.1 General The product shall be manufactured with materials and components conforming to 5.1.2 to 5.1.4. 5.1.2 Metal facings 5.1.2.1 Steel faces Steel faces (other than stainless steel) shall have a minimum yield strength of 220 N/mm2 and shall conform to the requirements of the appropriate standard given in Table 1.
EN 14509:2006 (E) 13 Table 1 – Standards for steel with metallic coating Metallic coating European Standard Zinc, 5 % Al-Zn, 55 % Al-Zn and Aluminium-silicon EN 10326 or EN 10327
The minimum nominal metallic coating masses shall be as specified in EN 508-1. If the metal face is bonded over its whole area to a rigid foam core with a closed cell structure, the reverse side metallic coating mass shall be a minimum of 50 g/m2.
Organic protective coatings shall be selected according to their durability in the application environment. Organic coated steel sheets shall conform to the requirements of EN 10169-1, EN 10169-2 and EN 10169-3. Multi-layer coatings shall conform to EN 508-1. The panel manufacturer shall state the metal grade, thickness and tolerance system of each face. Tolerances on thickness shall be according to “special” or “normal” tolerances as described in the relevant standards. The thickness of steel facing sheets shall be determined in accordance with EN 10143. NOTE Not all steels in Table 1 are suitable for sandwich panels in all the intended end uses. 5.1.2.2 Stainless steel faces Stainless steel facings shall have a minimum yield strength of 220 N/mm2. The chemical composition of stainless steel faces and their physical properties shall conform to EN 10088-1. The panel manufacturer shall state the metal grade, thickness and tolerance system of each face. Tolerances on thickness shall be according to “special” or “normal” tolerances as described in the relevant standards. The thickness of steel facing sheets shall be determined in accordance with EN ISO 9445. NOTE Not all steels in EN 10088-1 are suitable for sandwich panels in all the intended end uses. The coating properties of terne coated stainless steel shall conform to EN 502. The nominal coating mass shall be the total mass including both sides and shall be at least 40 g/m2. 5.1.2.3 Aluminium faces Aluminium facings shall have a minimum design value of the stress at the 0,2%-strainlimit (for simplification called “yield strength“) of 140 N/mm2. The chemical composition, temper and mechanical properties of aluminium shall conform to EN 485-2 or EN 1396. Organic coated aluminium sheets shall conform to the requirements of EN 1396. The panel manufacturer shall state the metal grade, thickness and tolerance system of each face. Tolerances on thickness shall be according to “special” or “normal” tolerances as described in the relevant standards. The thickness of aluminium facing sheets shall be determined in accordance with EN 485-4 or EN 1396. NOTE Not all aluminium alloys covered by EN 485-2 or EN 1396 are suitable for sandwich panels in all the intended end uses. 5.1.2.4 Copper faces Copper facings shall have a minimum design value of the stress at the 0,2%-strainlimit (for simplification called “yield strength“) of 180 N/mm2. The chemical composition, temper, mechanical properties and thickness tolerances
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.