🏗️ Self-supporting double skin metal faced insulating sandwich panels — strength and moduli of the core, bending moment capacity of the panel, creep, support reaction, point loads and thermal transmittance U; PN-EN 14509

Construction PN-EN 14509

Overview

WHAT THE STANDARD COVERS. EN 14509:2013 (clause 1) specifies requirements for factory-made self-supporting double skin metal faced insulating sandwich panels intended for discontinuous laying: a) on roofs and roof claddings, b) on external walls and wall claddings, c) on walls (including partitions) and ceilings within the building envelope. The core is rigid polyurethane foam (PUR, including polyisocyanurate PIR), expanded polystyrene (EPS), extruded polystyrene (XPS), phenolic foam, cellular glass or mineral wool. The standard covers panels with edges of a material other than the core and panels for cold stores (cold storage room kits are described by ETA Guideline 021). It does not cover panels with a core having a declared thermal conductivity greater than 0.06 W/(m·K) at 10 °C, panels with two or more layers of different core materials, panels with a perforated face and curved panels. Definitions (clause 3): sandwich panel — a building product consisting of two metal faces on either side of a core of thermally insulating material, permanently bonded to them so that the three components act together under load (3.17); self-supporting panel — carries its own weight and, when fixed to spaced supports, also loads (e.g. snow, wind, internal air pressure) and transfers them to the supports (3.18); bending moment capacity — the highest bending moment recorded in a test of a single panel, and bending moment resistance — its characteristic value from a series of tests (3.2–3.3); wrinkling stress — the stress in the compressed face when a panel failing in bending forms a "wrinkle" across the whole width near the section with the highest moment (3.22). The "Scope" field of the PKN card of PN-EN 14509:2013-12 (English version, description of the scope in Polish) summarises the same scope; an excerpt: "This European Standard does not cover: i. sandwich panels with a declared thermal conductivity of the insulating core at a temperature of 10 °C of values above 0.06 W/mK; ii. products with a multilayer thermal insulating core, i.e. one consisting of two or more clearly defined layers of different materials; iii. panels with perforated face(s); iv. panels in the shape of a curve" (our translation).

TESTS IN THE STANDARD (table of contents; we have not read the content of the tests). Annex A (normative): A.1 tension across the panel (also the modulus at elevated temperature), A.2 compressive strength and modulus of the core, A.3 shear of the core material (short- and long-term loading), A.4 shear properties of the whole panel, A.5 bending moment capacity of a simply supported panel, A.6 creep coefficient φt, A.7 interaction of bending moment and support reaction, A.8 apparent density of the core and mass of the panel, A.9 resistance to point and repeated loads, A.10 calculation method for the thermal transmittance U (also the simplified Ud,S), A.11 watertightness under pulsating pressure, A.12 air permeability, A.13 airborne sound insulation, A.14 sound absorption, A.15 support reaction capacity at the end of the panel, A.16 recording and interpretation of results (initial type testing ITT, factory production control FPC, characteristic values, interpolation and extrapolation). Annex B — durability: DUR1 and DUR2 tests, adhesion of the faces to a prefabricated core (wedge test), repeated loads, thermal shock. Annex C — fire tests (additional instructions and direct field of application of results), D — dimensional tolerances, E — design procedures. Clause 6 describes the evaluation of conformity (ITT, FPC, characteristic values from test families). The normative references include, among others, EN 826 (compression of insulating products), EN 1602 (apparent density), EN 1607 (tension perpendicular to the faces), EN ISO 6946 (thermal resistance and transmittance), EN 12114 (air permeability), EN 12865 (rain under pulsating pressure), EN 13501-1, EN 13501-2 and EN 13501-5 (fire classification) and EN ISO 10140 and EN ISO 717-1 (acoustics).

EDITIONS. EN 14509:2013 (CEN/TC 128 "Roof covering products for discontinuous laying and products for wall cladding") replaced EN 14509:2006; in the iTeh catalogue EN 14509:2006 and its corrigendum EN 14509:2006/AC:2008 have the status "Withdrawn". According to the foreword, the results of earlier tests according to EN 14509:2006 may be used without repeating them according to the changed procedures (6.2.2), if the declared data do not change significantly; a list of the significant technical changes is given in Annex F (which we have not read). The standard was prepared under a mandate given by the European Commission and EFTA, and its relationship with EU legislation is described in Annex ZA. In the iTeh catalogue (read on 27.10.2026) EN 14509:2013 has the status "Published" and the stage "6060 – Definitive text made available (DAV) – Publishing".

STATUS (PKN card as of 27.10.2026). The card of PN-EN 14509:2013-12 (English version) has no withdrawal label: publication 11-12-2013, 177 pages, Building and Construction Sector, KT 234 Roof Covering Elements, "Adopts: EN 14509:2013 [IDT]", "Directive: 305/2011/EU", "Replaces: PN-EN 14509:2010 - Polish version", ICS 91.100.60. PKN search, search term "EN 14509" (27.10.2026): PN-EN 14509:2007 (German and English versions) and PN-EN 14509:2010 (Polish version) are withdrawn; there is no Polish version of the 2013 edition in the results.

REGULATIONS. In PCA documents EN 14509:2013 appears as a harmonised technical specification in "assessment of performance" entries in system 3 under Regulation (EU) No 305/2011 — for products from Commission Decisions 98/436/EC (roof coverings, rooflights, roof windows and ancillary products; AB 008, AB 023) and 98/437/EC (internal and external wall and ceiling finishes; AB 008, AB 014, AB 023, AB 1241, AB 1596). We do not give numerical requirements for panels or classes.

HOW MANY LABORATORIES AND IN WHAT FORM (copy of the accreditation scope database refreshed from the production server on 27.10.2026 and current PCA documents downloaded on that day). Number 14509 appears in 37 records at 6 Polish laboratories: AB 023 (17), AB 1903 (13), AB 1596 (3), AB 008 (2), AB 014, AB 1241. In the current PCA documents the standard appears 36 times; the difference concerns AB 023, where one entry (thermal transmittance of metal faced panels, calculation method, 0.2–3.0 W/(m²·K)) is recorded in the database copy as two records. No entry is suspended. Forms: "EN 14509:2013" (AB 008, AB 014, AB 1241; at AB 1596 with the notes "O" "Z"), "EN 14509" (AB 023, assessment of products), "PN-EN 14509" without the year (AB 023), "PN-EN 14509:2013-12" (AB 1903; at AB 1596 "pkt 5.2.4.2, C2 'N'" for fire resistance) and "PN-EN 14509:2013 'N'" (AB 1596). According to the PCA legends: "N" — a method used in activities relevant to notification under Regulation (EU) No 305/2011, "E" at the test object (AB 023) — flexible scope of accreditation, "*" (AB 023, AB 1596) — tests on the basis of which the laboratory formulates opinions and interpretations, "O" (AB 1596) — competence to assess performance on the basis of calculations. The "Laboratories" tab ("PN-EN 14509") shows 7 laboratories: these 6 Polish ones and 1 Czech one (tab query on labcoda.pl, 27.10.2026).

WHAT THE LABORATORIES TEST (database copy and PCA documents). Properties of the panel material: moduli of elasticity in tension and compression and the shear modulus in bending, tensile, shear and compressive strength or stress at 10 % relative deformation, range (20–50 000) N or up to 30 kN (AB 023); tensile, compressive and shear strength, core moduli in tension and compression perpendicular to the faces (force up to 300 kN), core shear modulus in a bending test (up to 50 kN), apparent density of the core (mass up to 5 kg) (AB 1903). Properties of the panel as an element: bending moment and stiffness of a simply supported panel, interaction of moment and support reaction (up to 4 × 200 kN), resistance to a point load, creep coefficient (AB 023); bending moment and critical stress for panels up to 1200 × 9000 mm, support reaction capacity at the edge of the panel, interaction of moment and support reaction, point and cyclic loads, creep (AB 1903). Heat and fire: thermal transmittance by the calculation method, 0.2–3.0 W/(m²·K) (AB 023; AB 1596 together with PN-EN ISO 6946), fire resistance of panels — insulation, integrity, sustained flaming, radiation intensity (AB 1596, with PN-EN 13501-2). Assessment of performance of products (system 3) on the basis of tests and calculations: AB 008, AB 014, AB 023, AB 1241, AB 1596.

ALONGSIDE THIS STANDARD (database copy, 27.10.2026). For sandwich panels, laboratories also give PN-EN 1607 (tension; AB 023, AB 1903), PN-EN ISO 29469 (compression; AB 023, AB 1903), PN-EN ISO 29470 and PN-EN 1602 (apparent density; AB 1903), PN-EN ISO 6946 and PN-EN 13501-2 (AB 1596) and PN-EN 1604 and PN-EN 12090 (AB 023). Compression of thermal insulating products according to PN-EN ISO 29469 is described by a separate Knowledge Base method.

WHERE A SEEMINGLY CORRECT RESULT IS EASY TO GET. First — a value from one panel versus the characteristic value: the bending moment capacity is the result of a single test, and the bending moment resistance — the characteristic value from a series (3.2–3.3, A.16); the latter is used for the declaration. Second — the scope of the standard: panels with a core of λ > 0.06 W/(m·K), with a multilayer core, with a perforated face and curved panels are outside the standard (clause 1). Third — the type of test: the same standard number covers tests of the core material, tests of the whole panel and the calculation of U; a laboratory may have only part of them accredited — it is worth checking the specific characteristic in the scope. Fourth — edition: data according to EN 14509:2006 can only be carried over if the declared values do not change significantly (6.2.2). Fifth — the thermal transmittance U of the panel (A.10.3, simplified Ud,S — A.10.4) is a different quantity from the thermal conductivity of the component materials (A.10.2), from which it is calculated.

WHAT WE DO NOT GIVE. The fragment of EN 14509:2013 we read covers the table of contents, the foreword and clauses 1–3 (scope, normative references, terms and definitions). We do not give the course of the tests from Annexes A–C, specimen dimensions, the number of tests in ITT and FPC, formulas for characteristic values, dimensional tolerances, requirements for faces and cores or fire classification.

Method principle

The sandwich panel — two metal faces permanently bonded to an insulating core, acting together under load — is tested with the set of procedures in Annexes A–C of EN 14509:2013: tests of the core material (tension across the panel, compression, shear), tests of the whole panel (bending of a simply supported panel, creep, interaction of moment and support reaction, point and repeated loads, durability, fire tests) and the calculation of the thermal transmittance U; the results of type testing and factory production control are converted into characteristic values (A.16, 6.4).

Applications

• Factory-made self-supporting sandwich panels with metal faces and a core of PUR/PIR, EPS, XPS, phenolic foam, cellular glass or mineral wool — roofs, external walls, partition walls and ceilings, also cold stores (EN 14509:2013, clause 1)
• Initial type testing (ITT) and factory production control (FPC) of panels (clause 6, A.16)
• Assessment of performance of construction products in system 3 under Regulation (EU) No 305/2011 — in scopes with Commission Decisions 98/436/EC and 98/437/EC
• In accreditation scopes: 6 Polish laboratories; core tests up to 300 kN, bending tests of panels up to 1200 × 9000 mm and up to 4 × 200 kN, calculation of U in the range 0.2–3.0 W/(m²·K)

Key parameters

Standard

Standard number

PN-EN 14509:2013-12 (wersja angielska; wprowadza EN 14509:2013 [IDT])

Title (PL)

Samonośne izolacyjno-konstrukcyjne płyty warstwowe z dwustronną okładziną metalową — Wyroby fabryczne — Specyfikacje

Title (EN)

Self-supporting double skin metal faced insulating panels — Factory made products — Specifications

Step-by-step procedure

1. Identification of the product

   Type of core, faces and intended use of the panel (roof, wall, ceiling) — checking whether the panel falls within the scope of the standard (clause 1).

2. Sampling

   According to the rules for ITT and control tests (6.2.3). WE DO NOT GIVE the details.

3. Tests of the core material

   Tension across the panel, compression and shear of the core, apparent density (A.1–A.3, A.8). WE DO NOT GIVE the course.

4. Tests of the whole panel

   Bending of a simply supported panel, interaction of moment and support reaction, creep, point and repeated loads, durability (A.4–A.9, A.15, Annex B). WE DO NOT GIVE the course.

5. Result

   Characteristic values from a series of tests (A.16, 6.4), coefficient U from the calculation (A.10). PN-EN 14509:2013-12 — current (PKN card as of 27.10.2026; English version).

Required equipment and apparatus

Health and safety (OHS)

• TECHNICAL NOTE: the result of a single panel (bending moment capacity) and the characteristic value from a series (bending moment resistance) are different quantities (3.2–3.3)
• TECHNICAL NOTE: the same standard number covers core tests, tests of the whole panel and the calculation of U — the accreditation of a laboratory may cover only part of them

Frequently asked questions