SIST EN 15254-3:2019

Extended application of results from fire resistance tests - Non-loadbearing walls - Part 3: Lightweight partitions

This document provides guidance and, where appropriate, defines procedures for variations of certain parameters and factors associated with the design of lightweight partitions, which have been tested in accordance with EN 1364-1, and classified according to EN 13501-2.
This document only applies to non-loadbearing lightweight partitions with a single steel framework, provided with a lining on both sides of the steel framework. The lightweight partition can be insulated with a mineral wool insulation within the partition cavity or not be insulated.
This document does not apply to any other types of non-loadbearing lightweight partitions considered in EN 1364-1.

Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen - Nichttragende Wände - Teil 3: Leichte Trennwände

Dieses Dokument enthält eine Anleitung für Änderungen bestimmter Parameter und Faktoren, die die Gestaltung von nach EN 1364-1 geprüften und nach EN 13501-2 klassifizierten leichten Trennwänden betreffen. Weiterhin definiert dieses Dokument, sofern zutreffend, die entsprechenden Verfahren.
Dieses Dokument gilt nur für nichttragende leichte Trennwände mit einem Einfachständerwerk aus Stahl, das auf beiden Seiten des Stahlständerwerks mit einer Beplankung versehen ist. Der Hohlraum der leichten Trennwand kann über eine Wärmedämmung aus Mineralwolle verfügen.
Dieses Dokument gilt nicht für jegliche anderen, in EN 1364-1 behandelten Arten von nichttragenden leichten Trennwänden.

Extension du champ d'application des résultats des essais de résistance au feu - Éléments non-porteurs - Partie 3 : Cloisons légères

Le présent document fournit des recommandations et, le cas échéant, définit des procédures pour les variations de certains paramètres et facteurs liés à la conception de cloisons légères qui ont été soumises à essai conformément à l’EN 1364‐1, et classées conformément à l’EN 13501‐2.
Le présent document s’applique uniquement aux cloisons légères avec une ossature en acier unique et munies d’un parement des deux côtés de l’ossature en acier. L’intérieur de la cavité de la cloison légère peut être isolé ou non avec de la laine minérale.
Le présent document ne s’applique pas aux autres types de cloisons légères traités dans l’EN 1364‐1.

Razširjena uporaba rezultatov preskusov požarne odpornosti - Nenosilne stene - 3. del: Lahke predelne stene

Ta dokument podaja smernice in, kjer je to primerno, določa postopke za spremembe nekaterih parametrov in dejavnikov, povezanih z načrtovanjem lahkih predelnih sten, ki so bile preskušene v skladu s standardom EN 1364-1 in razvrščene v skladu s standardom EN 13501-2.
Ta dokument se uporablja samo za nenosilne lahke predelne stene z enim jeklenim okvirjem, ki ima na obeh straneh oblogo. Lahka predelna stena je lahko izolirana z mineralno volno ali ne.
Ta dokument se ne uporablja za nobene druge vrste nenosilnih sten, ki so obravnavane v standardu EN 1364-1.

General Information

• Status: Published
• Public Enquiry End Date: 24-May-2018
• Publication Date: 09-Sep-2019
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 91.060.10 - Walls. Partitions. Facades
• Technical Committee: POZ - Požarna varnost
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Sep-2019
• Due Date: 10-Nov-2019
• Completion Date: 10-Sep-2019
• Directive: Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/117 - Horizontal complement to the mandates to CEN/CENELEC concerning the execution of standardization work for the valuation of construction products and elements in respect of their resistance to fire
• Ref Project: EN 15254-3:2019 - Extended application of results from fire resistance tests - Non-loadbearing walls - Part 3: Lightweight partitions

Relations

• Refers: SIST EN 1364-1:2015 - Fire resistance tests for non-loadbearing elements - Part 1: Walls
• Effective Date: 28-Jan-2026
• Refers: SIST EN 15725:2023 - Extended application on the fire performance of construction products and building elements: Principle of EXAP standards and EXAP reports
• Effective Date: 28-Jan-2026
• Refers: SIST EN 13501-1:2019 - Fire classification of construction products and building elements - Part 1: Classification using data from reaction to fire tests
• Effective Date: 28-Jan-2026
• Refers: SIST EN 13501-2:2023 - Fire classification of construction products and building elements - Part 2: Classification using data from fire resistance and/or smoke control tests, excluding ventilation services
• Effective Date: 28-Jan-2026
• Refers: SIST EN 14195:2015 - Metal framing components for gypsum board systems - Definitions, requirements and test methods
• Effective Date: 28-Jan-2026
• Refers: SIST EN 1363-1:2020 - Fire resistance tests - Part 1: General requirements
• Effective Date: 28-Jan-2026
• Refers: SIST EN 13162:2013+A1:2015 - Thermal insulation products for buildings - Factory made mineral wool (MW) products - Specification
• Effective Date: 28-Jan-2026
• Refers: SIST EN 1363-2:1999 - Fire resistance tests - Part 2: Alternative and additional procedures
• Effective Date: 28-Jan-2026

Overview

SIST EN 15254-3:2019, developed by CEN, offers a standardized approach for the extended application of fire resistance test results to non-loadbearing walls, with a specific focus on lightweight partitions utilizing a single steel framework. The standard provides detailed rules and guidance on acceptable variations in materials and construction, based on evidence from tests conducted in accordance with EN 1364-1 and classified by EN 13501-2. This ensures that fire-resistant wall systems in buildings maintain safety and compliance even when modifications are necessary for practical design or construction requirements.

Key Topics

SIST EN 15254-3:2019 covers several central topics critical to the extended application of fire resistance test results for lightweight partitions:

• Scope and Applicability

  • Limits application to non-loadbearing lightweight partitions with a single steel framework and lining on both sides, with or without mineral wool insulation.

• Guidance on Modifications

  • Provides procedures to assess the impact of modifications such as:
    • Number or thickness of lining boards
    • Dimensions and orientation of boards
    • Shape, thickness, and spacing of steel profiles
    • Addition, removal, or substitution of mineral wool insulation
    • Partition height and width increases

• Reference and Additional Test Evidence

  • Emphasizes the necessity of reference fire test data as the basis for any extended application.
  • Allows use of supplementary evidence to evaluate specific changes.

• Fire Performance Classification

  • Clarifies that upgraded classification times are not permitted via extension alone.
  • Ensures modifications do not compromise the integrity of fire resistance properties.

• Deflection and Overrun Criteria

  • Requires evaluation of partition deflection and specifies "overrun time" criteria to validate permissible modifications.

Applications

SIST EN 15254-3:2019 is highly relevant for building product manufacturers, design engineers, architects, and fire safety professionals involved in:

• Design Adaptation

  • Applying tested fire resistance classifications to lightweight wall systems where minor or controlled changes are required, such as varying the partition height to suit building layouts or selecting alternative mineral wool insulation types.

• Regulatory Compliance

  • Demonstrating compliance with European fire safety requirements for non-loadbearing partitions in new constructions or refurbishments.

• Product Development

  • Streamlining market access for lightweight partition systems by leveraging existing fire resistance test data for a broader range of designs.

• Construction and Installation

  • Assisting site engineers and contractors in understanding which changes to standard systems are permitted without compromising fire safety certification.

Key benefits include increased design flexibility, reduced testing costs, and the consistent application of fire resistance performance across diverse partition configurations.

Related Standards

To ensure a comprehensive understanding of fire resistance testing and classification for building elements, SIST EN 15254-3:2019 should be reviewed alongside the following key standards:

• EN 1364-1: Fire resistance tests for non-loadbearing elements - Part 1: Walls
• EN 13501-2: Fire classification of construction products and building elements - Using data from fire resistance tests, excluding ventilation services
• EN 14195: Definitions, requirements, and test methods for metal framing components in gypsum board systems
• EN 13162: Specification for factory-made mineral wool products
• EN 15725: Preparation and content rules for extended application reports on fire performance
• EN 1363-1 / EN 1363-2: General and additional fire resistance test methods

By integrating guidance from SIST EN 15254-3:2019 with these standards, stakeholders ensure high levels of fire safety, regulatory alignment, and design consistency for lightweight, non-loadbearing wall partitions across a variety of building projects.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2019
Razširjena uporaba rezultatov preskusov požarne odpornosti - Nenosilne stene -
3. del: Lahke predelne stene
Extended application of results from fire resistance tests - Non-loadbearing walls - Part
3: Lightweight partitions
Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen -
Nichttragende Wände - Teil 3: Leichte Trennwände
Extension du champ d'application des résultats des essais de résistance au feu -
Éléments non-porteurs - Partie 3 : Cloisons légères
Ta slovenski standard je istoveten z: EN 15254-3:2019
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.10 Stene. Predelne stene. Walls. Partitions. Facades
Fasade
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15254-3
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 13.220.50; 91.060.10
English Version
Extended application of results from fire resistance tests -
Non-loadbearing walls - Part 3: Lightweight partitions
Extension du champ d'application des résultats des Erweiterter Anwendungsbereich der Ergebnisse von
essais de résistance au feu - Éléments non-porteurs - Feuerwiderstandsprüfungen - Nichttragende Wände -
Partie 3 : Cloisons légères Teil 3: Leichte Trennwände
This European Standard was approved by CEN on 7 July 2019.

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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15254-3:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principles . 6
4.1 General principles . 6
4.2 Use of test evidence . 7
5 General rules . 7
5.1 Fire performance classification . 7
5.2 Combination of modifications . 7
5.3 Reference test . 7
6 Specific changes to the components of the lightweight partition . 8
6.1 Lining . 8
6.2 Metal framework . 8
6.3 Mineral wool insulation . 9
6.4 Lightweight partition (system) . 10
Bibliography . 12

European foreword
This document (EN 15254-3:2019) has been prepared by Technical Committee CEN/TC 127
“Fire safety in buildings”, the secretariat of which is held by BSI.
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 February 2020, and conflicting national
standards shall be withdrawn at the latest by February 2020.
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 has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association.
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, Turkey and the United Kingdom.
1 Scope
This document provides guidance and, where appropriate, defines procedures for variations of
certain parameters and factors associated with the design of lightweight partitions, which have
been tested in accordance with EN 1364-1, and classified according to EN 13501-2.
This document only applies to non-loadbearing lightweight partitions with a single steel
framework, provided with a lining on both sides of the steel framework. The lightweight
partition can be insulated with a mineral wool insulation within the partition cavity or not be
insulated.
This document does not apply to any other types of non-loadbearing lightweight partitions
considered in EN 1364-1.
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 14195, Metal framing components for gypsum board systems — Definitions, requirements and
test methods
EN 13162, Thermal insulating products for buildings — Factory made mineral wool (MW)
products — Specification
EN 15725, Extended application reports on the fire performance of construction products and
building elements
EN 1363-1, Fire resistance tests — Part 1: General Requirements
EN 1363-2, Fire resistance tests — Part 2: Alternative and additional procedures
EN 1364-1, Fire resistance tests for non-loadbearing elements — Part 1: Walls
EN 13501-1, Fire classification of construction products and building elements — Part 1:
Classification using 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
3 Terms and definitions
For the purposes of this document the terms and definitions given in EN 1363-1, EN 1363-2,
EN 1364-1, EN 15725 and EN 13501-2, together with the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
lightweight partition
non-loadbearing wall that comprises a single steel framework, provided with a lining on both
sides of the steel framework
Note 1 to entry: The lightweight partition cavity can be insulated with a mineral wool insulation within
the partition cavity or not be insulated.
3.2
fire performance classification
classification of the lightweight partition in accordance with EN 13501-2 with only taking into
account the E and/or EI-classification
3.3
lining
layer(s) of boards fixed at each side to the steel framework of the lightweight partition
3.4
board
product with an A1 or A2 classification according to EN 13501-1 of rectangular shape and cross-
section in which the thickness is uniform and substantially smaller than the other dimensions,
and where the product is covered by a Technical Specification as defined in the CPR
3.5
mineral wool insulation
mineral wool as specified in EN 13162
3.6
metal framework
framework comprising steel profiles as specified in EN 14195
3.7
single steel framework
steel framework comprising only one row of steel studs
3.8
reference test
fire resistance test in accordance with EN 1363-1 (or EN 1363-2 when applicable) and
EN 1364-1, providing primary evidence, on which the extended application is to be based
3.9
additional test evidence
fire resistance test in accordance with EN 1363-1 (or EN 1363-2 when applicable) and
EN 1364-1, providing secondary evidence, on which the extended application is supported
3.10
overrun time
time of fire resistance in minutes beyond the fire performance classification time achieved in
the test
3.11
shape of the profiles of the metal framework
type of profile designated by the prefix-letter (e.g. C- or U-shaped)
EN
...