EN 14509 Test Methods of Self-supporting double skin metal faced insulating roofing sandwich panel

Information on the most widely used ASTM standards within the materials testing industry

Descriptions of the most prominent lSO standards within the materials testing industry

Standards including EN, DIN, JlS, and more

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Tensile test evaluates material resistance to stretching, measuring strength/elongation critical for quality control. UnitedTest offers universal tensile testers (10-600KN) compliant with ASTM/ISO standards, providing tailored solutions for metals, polymers, medical & industrial materials.

Compression test assesses material resistance to compressive loads, measuring strength/deformation critical for quality validation. UnitedTest offers compression testing machines compliant with ASTM/ISO standards, providing tailored solutions for concrete, plastics, metals and industrial components.

Flexural & Bend tests evaluate material resistance to bending forces, measuring strength, stiffness and ductility for quality assurance. UnitedTest provides flexural testing machines (3-point/4-point bend) compliant with ASTM/ISO standards, offering tailored solutions for composites, plastics, metals and construction materials.

Torsion Test evaluates material resistance to rotational forces, measuring torsional strength/ductility critical for fasteners, insulators, shafts. UnitedTest offers torsion testers compliant with ASTM A938/ISO 16047, providing tailored solutions for automotive, aerospace, fastener industries.

Fatigue Test assesses material durability under cyclic loading, critical for predicting service life of industrial components. UnitedTest offers fatigue testing systems (axial/bending/torsion) compliant with ASTM E466/ISO 12106, providing tailored solutions for automotive, aerospace and manufacturing sectors.

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Tear & Shear Test evaluates material resistance to tearing and shearing forces, measuring critical strength parameters for quality control. Tear tests (Elmendorf/trouser/trapezoidal) assess resistance to crack propagation in films/fabrics, while shear tests measure resistance to parallel forces in joints/bolts. UnitedTest provides universal testing machines (10KN-600KN) with specialized fixtures for both tests, compliant with ASTM D624/D3164 and ISO standards, serving automotive, packaging and construction industries.

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EN 14509 self-supporting double-skin metal-faced insulating sandwich panels

EN 14509 specifies factory-made self-supporting double-skin metal-faced insulating sandwich panels for roofs, external walls, internal walls/ceilings.

Metal insulation sandwich panels for construction refer to self-supporting composite panels composed of metal surfaces and an insulating core material bonded between the two metal surfaces. The panels themselves have characteristics such as thermal insulation, waterproof and fire resistance, lightweight and earthquake resistance, convenient construction, sound insulation and noise reduction, environmental friendliness, and aesthetic durability. At the same time, because the panel assembly method is simple and practical and not restricted by seasonal environmental conditions, installation and use are very safe and convenient. They are often used for roofs, exterior walls, ceilings, and their coverings.

The European Union has mandatory enforcement of the Construction Product Regulation (CPR, officially No.305/2011/EU-CPR). EN 14509:2013 metal insulated panels for building use fall under the regulatory scope of the EU Construction Product Regulation CPR. It has been mandatory since October 2014. Metal insulated panels for building use exported to the EU must pass CE certification and have the CE mark affixed before they can enter the EU market.

Main mechanical test stipulated in EN 14509, test equipment, test requirement details:

The main test items of the standard include long-term effects such as mechanical properties and durability. Among them, mechanical property tests include shear strength and modulus, compressive strength or stress, shear strength under long-term load, tensile strength, bending bearing capacity, and wrinkle pressure. Durability and long-term effect tests include the impact of aging time on tensile strength, point load and service load durability, fire reaction, and dimensional limit deviations.

Test	Test Methods and requirement	Test Equipment
Cross Panel Tensile Test	Determines the tensile strength and modulus of the core material perpendicular to the panel faces. An elevated temperature variant is also specified. Measure tensile strength & modulus perpendicular to panel faces (core + face-core bond); characteristic value ≥ 0.018 MPa. Specimen: Square (100–300 mm side), intact metal faces; cut from panel center (≥250 mm from edge); min age 24 h; profiled faces use shaped filling pieces.	Tensile testing machine with grips
Compressive Strength & Modulus	Measures the compressive strength and deformation modulus of the core material parallel to the panel faces. A core sample is placed between the platens and compressed at a controlled speed. Load and displacement are recorded to calculate stress-strain curves. Specimen: Square (100–300 mm); no glued filling pieces on loading platens.	Compression testing machine Universal testing machine
Shear Test (Short/Long-Term)	Determines the short-term and long-term (creep) shear properties of the core material, which is critical for evaluating the panel's resistance to sliding forces. 4-point bending to test shear strength/modulus; long-term shear strength for roof/ceiling permanent loads. Specimen: Width 100±2 mm (MW lamella: 2×100 mm); span = 1000 mm (adjust for shear failure).	Universal testing machine with 4 points bending fixture
Full Panel Shear Test	Assesses the overall shear rigidity and strength of the assembled panel. Specimen: Full cover width; worst-case core joint layout (≥0.5×core depth from support). Procedure: Uniform load (line or vacuum); failure in 1–5 min; calculate shear properties for flat/profiled faces.	Universal testing machine 4-point loading fixture
Simply Supported Panel Bending	Determines the flexural strength and stiffness of a simply supported panel under load. Bending moment capacity & wrinkling stress (flat/lightly profiled faces) / local buckling (profiled faces). Specimen: Span per panel depth; test both panel orientations; min age 24 h. A panel is supported at both ends and loaded centrally or uniformly. The load is increased until the panel fails (yielding, buckling, or rupture). Deflections are recorded to assess stiffness.	Universal testing machine, Bending Fixture
Creep Coefficient Test	Long-term deflection under uniform load to get creep coefficient (φ) for roof/ceiling long-term loads. Specimen: Max thickness (≤200 mm); same span as bending test.	Simply supported rig, uniform dead load
Point Load & Repeated Load Resistance	Resistance to foot traffic (point load) and repeated maintenance access loads (roof/ceiling). Simulates localized impacts or concentrated loads (e.g., workers stepping on the roof during maintenance) and fatigue from repeated loading.	Fatigue testing machine with Rigid steel indenters
End Support Reaction Capacity	Compressive resistance at panel end supports (plain/lightly profiled faces). Specimen: Full width; 3 tests per support width. Procedure: Load at 1–3% deflection per minute; measure reaction force; calculate characteristic value.	Inclined support (1:20), steel plate, load cell.
Thermal transmittance rate test	Determination of thermal conductivity and thermal transmittance (U-value).
Other test	Water Vapour Permeability, Air Permeability, Water Permeability , Fire Performance test, Thermal Shock Test

Importance & Application:

These mechanical tests are fundamental for structural engineering design. They provide the characteristic values (resistance to bending, shear, compression, and tension) required to safely specify panel spans, support spacings, and fastening systems in building projects, ensuring the structure can withstand wind, snow, and operational loads throughout its service life.

WDW Series Computer Control Electronic Universal Testing Machine made by UNITEDTEST range from 100N to 600KN load capacity with various models like single columns, table type, door frame type etc., is used to perform tension, compression, flexure/bending, shearing, peeling etc., test for metal and nonmetal specimens. Matched with UNITEDTEST design and produced various test fixture, like peel, flexure, puncture, tear, pneumatic grip, belt tension etc., this UTM can be used to almost all materials include but not limited to steel rod, rubber, steel wire, plastic, seat belt, textile, wood, panel etc., mechanical performance inspection.

The four point bending flexural test provides values for the modulus of elasticity in bending, flexural stress ,flexural strain and the flexural stress-strain response of the material. This test is very similar to the three point bending flexural test.

Water vapor transmittance tester is a set of industrial, efficient and intelligent test system, which is suitable for the determination of water vapor transmittance of plastic film, composite film, medical, construction and other materials.

EN 863 Puncture Test Fixture is a standardized attachment for constant-rate-of-traverse (CRT) tensile testing machines, used to determine the bursting strength of textile fabrics by forcing a polished steel ball through a clamped specimen at a constant rate until rupture.

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