EN 13496:2025
(Main)Thermal insulation products for building applications - Determination of the mechanical properties of glass fibre meshes as reinforcement for external thermal insulation composite kits with renders (ETIC kits)
Thermal insulation products for building applications - Determination of the mechanical properties of glass fibre meshes as reinforcement for external thermal insulation composite kits with renders (ETIC kits)
This document specifies equipment and procedures for determining the tensile strength and elongation of rectangular and triaxial glass fibre meshes which are used for the reinforcement of the base coat in external thermal insulation composite kits with renders (ETIC kits).
Wärmedämmstoffe für das Bauwesen - Bestimmung der mechanischen Eigenschaften von Glasfasergewebe als Armierung für außenseitige Wärmedämm-Verbundsysteme mit Putz (WDVS)
Dieses Dokument legt Prüfeinrichtungen und Verfahren zum Bestimmen der Zugfestigkeit und der Dehnung von rechteckigen und triaxialen Glasfasergeweben fest, die für die Armierung des Unterputzes von außenseitigen Wärmedämm-Verbundsystemen mit Putz (WDVS) verwendet werden.
Produits isolants thermiques pour le bâtiment - Détermination des caractéristiques mécaniques des treillis de fibres de verre servant à renforcer les kits de systèmes composites d’isolation thermique par l’extérieur (kits ETIC) avec des enduits
Le présent document spécifie l’équipement et les modes opératoires pour déterminer la résistance à la traction et l’allongement de treillis de fibres de verre rectangulaires et triaxiaux servant à renforcer la couche de base des kits de systèmes composites d’isolation thermique par l’extérieur (kits ETIC) avec des enduits.
Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje mehanskih lastnosti mrežice iz steklenih vlaken kot armature za kompozitne komplete zunanje toplotne izolacije z ometom (ETIC kompleti)
Ta dokument določa opremo in postopke za ugotavljanje natezne trdnosti in raztezka pravokotnih in triaksialnih mrežic iz steklenih vlaken, ki se uporabljajo za ojačanje osnovnega premaza v kompozitnih kompletih zunanje toplotne izolacije z ometom (ETIC kompleti).
General Information
Relations
Overview
EN 13496:2025 (CEN) specifies test equipment and procedures to determine the mechanical properties - tensile strength and elongation - of rectangular and triaxial glass fibre meshes used as reinforcement for the base coat in external thermal insulation composite kits with renders (ETIC kits). The 2025 edition supersedes EN 13496:2013 and introduces triaxial mesh testing, a 28‑day alkaline conditioning option and revised result‑accuracy rules.
Key topics and technical requirements
- Scope: Tests apply to glass fibre meshes used in ETIC (external thermal insulation composite) systems with renders.
- Test principle: Maximum tensile strength and corresponding elongation measured in warp and weft directions (for triaxial meshes both weft directions).
- Specimens:
- Minimum length: 300 mm; seven test specimens required per combination of test direction and conditioning.
- Sampling rules: discard first metre of roll and edge areas; cut at mesh openings; ensure consistent thread counts across specimens.
- Apparatus & settings:
- Calliper accuracy: 0.05 mm; tensile machine crosshead speed: 100 ± 5 mm/min; force measurement accuracy: ≥ 10 N.
- Clamps must prevent slippage without damaging the specimen (e.g., rubber-coated).
- Dimensions & calculations:
- Thread count determined from distance across 21 threads; mesh size and mesh opening calculated per specified formulae.
- Mass per unit area measured per EN 12127:1997 (1 m² specimen).
- Conditioning:
- A - no additional conditioning (storage at 23 ± 5 °C and 50 ± 5 % RH for ≥24 h).
- B - 24 h warm alkaline conditioning at 60 ± 2 °C.
- C - 28‑day alkaline conditioning at 23 ± 2 °C.
- Alkaline solution recipe per 1 000 ml deionised water: Ca(OH)2 (0.50 ± 0.01) g, NaOH (1.00 ± 0.02) g, KOH (4.00 ± 0.08) g.
- Post‑conditioning wash: HCl rinse (5 ml HCl 35% diluted in 4 L water), successive water baths, then dry ≥48 h at standard conditions.
- Reporting: Test conditions, specimen details (threads, directions), conditioning, tensile strength and elongation results, and any deviations.
Applications and users
- Who uses it: test laboratories, glass fibre mesh and ETIC kit manufacturers, product certification bodies, specification engineers, architects and quality control teams in construction and façade systems.
- Why it matters: ensures reinforced ETIC base coats meet mechanical performance expectations (durability, crack resistance and load transfer), supports product declarations and regulatory compliance across European markets.
Related standards
- EN 12127:1997 - mass per unit area of fabrics (referenced)
- EN ISO 9229 - thermal insulation vocabulary
- ISO 1887 - combustible matter content of textile glass
Keywords: EN 13496:2025, glass fibre mesh testing, ETIC kits, tensile strength, alkali conditioning, triaxial meshes, thermal insulation, mechanical properties.
Frequently Asked Questions
EN 13496:2025 is a standard published by the European Committee for Standardization (CEN). Its full title is "Thermal insulation products for building applications - Determination of the mechanical properties of glass fibre meshes as reinforcement for external thermal insulation composite kits with renders (ETIC kits)". This standard covers: This document specifies equipment and procedures for determining the tensile strength and elongation of rectangular and triaxial glass fibre meshes which are used for the reinforcement of the base coat in external thermal insulation composite kits with renders (ETIC kits).
This document specifies equipment and procedures for determining the tensile strength and elongation of rectangular and triaxial glass fibre meshes which are used for the reinforcement of the base coat in external thermal insulation composite kits with renders (ETIC kits).
EN 13496:2025 is classified under the following ICS (International Classification for Standards) categories: 91.100.60 - Thermal and sound insulating materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13496:2025 has the following relationships with other standards: It is inter standard links to EN 13496:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 13496:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2025
Nadomešča:
SIST EN 13496:2013
Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje mehanskih
lastnosti mrežice iz steklenih vlaken kot armature za kompozitne komplete zunanje
toplotne izolacije z ometom (ETIC kompleti)
Thermal insulation products for building applications - Determination of the mechanical
properties of glass fibre meshes as reinforcement for external thermal insulation
composite kits with renders (ETIC kits)
Wärmedämmstoffe für das Bauwesen - Bestimmung der mechanischen Eigenschaften
von Glasfasergewebe als Armierung für außenseitige Wärmedämm-Verbundsysteme mit
Putz (WDVS)
Produits isolants thermiques pour le bâtiment - Détermination des caractéristiques
mécaniques des treillis de fibres de verre servant à renforcer les kits de systèmes
composites d’isolation thermique par l’extérieur (kits ETIC) avec des enduits
Ta slovenski standard je istoveten z: EN 13496:2025
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.
EN 13496
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2025
EUROPÄISCHE NORM
ICS 91.100.60 Supersedes EN 13496:2013
English Version
Thermal insulation products for building applications -
Determination of the mechanical properties of glass fibre
meshes as reinforcement for external thermal insulation
composite kits with renders (ETIC kits)
Produits isolants thermiques pour le bâtiment - Wärmedämmstoffe für das Bauwesen - Bestimmung
Détermination des caractéristiques mécaniques des der mechanischen Eigenschaften von Glasfasergewebe
treillis de fibres de verre servant à renforcer les kits de als Armierung für außenseitige Wärmedämm-
systèmes composites d'isolation thermique par Verbundsysteme mit Putz (WDVS)
l'extérieur (kits ETIC) avec des enduits
This European Standard was approved by CEN on 2 March 2025.
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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13496:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Apparatus . 5
6 Test specimens . 5
6.1 Number of test specimens . 5
6.2 Dimensions of the test specimens . 5
6.3 Preparation of the test specimens . 5
6.3.1 Sampling . 5
6.3.2 Determination of the number of threads per 50 mm . 5
6.3.3 Determination of the mesh size and mesh opening in warp and weft direction . 6
6.3.4 Determination of the mass per unit area . 7
6.3.5 Preparation of test specimens . 7
6.3.6 Determination of the number of threads of test specimen in test direction . 7
6.4 Conditioning of the test specimens . 7
6.4.1 Conditionings . 7
6.4.2 Alkaline solution . 8
6.4.3 Placement of test specimens in the alkaline solution . 8
6.4.4 Washing and drying procedure after conditioning in alkaline solution . 8
7 Procedure. 8
7.1 Test conditions . 8
7.2 Attachment of the test specimens in the tensile testing machine . 8
7.3 Test procedure . 9
8 Calculation and expression of results . 9
9 Accuracy of measurement . 9
10 Test report . 10
European foreword
This document (EN 13496:2025) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
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 October 2025, and conflicting national standards shall
be withdrawn at the latest by October 2025.
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 supersedes EN 13496:2013.
— addition of triaxial meshes;
— addition of 28-day conditioning in alkaline solution;
— amended accuracy of expression of results.
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.
1 Scope
This document specifies equipment and procedures for determining the tensile strength and elongation
of rectangular and triaxial glass fibre meshes which are used for the reinforcement of the base coat in
external thermal insulation composite kits with renders (ETIC 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 12127:1997, Textiles — Fabrics — Determination of mass per unit area using small samples
EN ISO 9229, Thermal insulation — Vocabulary (ISO 9229)
ISO 1887, Textile glass — Determination of combustible-matter content
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229 and the following
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
tensile strength of glass fibre mesh
strength of the test specimen at failure in relation to its width
3.2
elongation of glass fibre mesh
elongation of the test specimen at failure in relation to its initial length
4 Principle
The maximum tensile strength and corresponding elongation of glass fibre meshes are determined using
a tensile testing machine. The tensile strength of the meshes shall be tested in both test directions, the
warp and the weft direction. For triaxial meshes, two weft directions are recognized and both shall be
tested. Three types of conditioning can be carried out before the test:
— A, no additional conditioning;
— B, 24 h warm alkali conditioning;
— C, 28-day alkali conditioning.
5 Apparatus
5.1 Calliper, with a minimum accuracy of 0,05 mm.
5.2 Tensile testing machine, approp
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...