kSIST FprEN 18080:2025

SLOVENSKI STANDARD
01-maj-2025
Steklo v gradbeništvu - Odziv na ogenj - Navodila za montažo in pritrjevanje
steklenih izdelkov ter razširjena uporaba rezultatov testiranja
Glass in building - Reaction to fire - Mounting and fixing instructions for glass products
and extended application of test results
Glas im Bauwesen - Brandverhalten - Einbau- und Befestigungsbedingungen und
erweiterte Anwendung der Prüfergebnisse
Verre dans la construction - Réaction au feu - Instructions de montage et de fixation pour
les produits verriers et application étendue des résultats d’essais
Ta slovenski standard je istoveten z: FprEN 18080
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
81.040.20 Steklo v gradbeništvu Glass in building
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

FINAL DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2025
ICS 81.040.20
English Version
Glass in building - Reaction to fire - Mounting and fixing
instructions for glass products and extended application of
test results
Verre dans la construction - Réaction au feu - Glas im Bauwesen - Brandverhalten - Einbau- und
Instructions de montage et de fixation pour les Befestigungsbedingungen und erweiterte Anwendung
produits verriers et application étendue des résultats der Prüfergebnisse
d'essais
This draft European Standard is submitted to CEN members for formal vote. It has been drawn up by the Technical Committee
CEN/TC 129.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

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. FprEN 18080:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Specific instructions for the reaction to fire classification of glass products . 6
4.1 General. 6
4.2 Mounting and fixing instructions for SBI test according to EN 13823 . 7
5 Extended application rules . 9
5.1 General. 9
5.2 Laminated glass . 9
5.2.1 Construction of laminated glass panes with two glass plies . 9
5.2.2 Construction of laminated glass panes with more than two glass plies . 10
5.2.3 Construction on laminated glass panes with more than three plies . 10
5.2.4 Laminated glass with encapsulated material between interlayers . 10
5.3 Glass with organic coatings and filmed glass . 10
5.4 Insulating glass units . 11
5.5 Fire resistant laminated glass . 11
Bibliography . 12

European foreword
This document (FprEN 18080:2025) has been prepared by Technical Committee CEN/TC 129 “Glass in
building”, the secretariat of which is held by NBN.
This document is currently submitted to the Formal Vote.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Introduction
The large number of glass products for use in buildings, especially laminated glasses and insulating glass
units, makes it impossible to test all products individually with respect to their reaction to fire
performance. Therefore, in many cases the reaction to fire performance of glass products demands
extended application instructions for application.
CEN/TS 15117:2005, Guidance on direct and extended application establishes the use of additional
calculations together with an initial test result as a possibility for extended application.
Consequently, the rules given in this document are based on calculations considering the QPCS (gross heat
combustion) values of the glass products and their components.
In addition, since the experience has been made that an early termination of a single burning item (SBI)
test according to EN 13823 cannot always be prevented using a burner guard grid as described in
EN 13823, an alternative metal grid is proposed to ensure a valid test result for classification.
1 Scope
This document gives precisions on the mounting and fixing rules for testing glass products and provides
guidance. It defines procedures for extended application of test results obtained in accordance with EN
ISO 1716, EN ISO 11925-2, EN ISO 1182 and EN 13823 and classified according to EN 13501-1.
The extended application rules in this document are not applicable to laminated glass comprising plastic
glazing sheet material.
This document is not applicable to joints and cables, junction boxes, glues, mounting seals and any fixing
devices used to install the glass product.
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 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 and/or smoke control tests, excluding ventilation services
EN 13823:2020+A1:2022, Reaction to fire tests for building products — Building products excluding
floorings exposed to the thermal attack by a single burning item
EN ISO 1182, Reaction to fire tests for products — Non-combustibility test (ISO 1182)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame
— Part 2: Single-flame source test (ISO 11925-2)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13823, EN ISO 12543-1,
EN 1279-1 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
laminated glass
assembly consisting of one sheet of glass with one or more sheets of glass and/or plastic glazing sheet
material joined together with one or more interlayers
Note 1 to entry: In this document the expression “laminated glass” applies to either laminated glass or laminated
safety glass.
[SOURCE: ISO 12543-1:2021, 3.1.1, modified — original Note 1 to entry has been deleted and new Note
1 to entry has been added; reference to term definition interlayer has been removed]
3.2
insulating glass unit
IGU
assembly consisting of at least two panes of glass, separated by one or more spacers, hermetically sealed
along the periphery, mechanically stable and durable
[SOURCE: EN 1279-1:2018, 3.1, modified — (as specified in 6.1) removed]
3.3
painted glass
flat glass whose rear surface has been coated with a paint
[SOURCE: EN 16477-1:2016, 3.1]
3.4
paint
organic coating covering glass
[SOURCE: EN 16477-1:2016, 3.2]
3.5
adhesive film
one or more layers of film with an adhesive on one external surface
Note 1 to entry: Adhesive backed polymeric film according to EN 15752-1 is an example of adhesive film
3.6
filmed glass
glass substrate to which an adhesive film (3.5) has been applied in order to modify one or more of its
properties
Note 1 to entry: Adhesive backed polymeric filmed glass according to EN 15755-1 is an example of filmed glass
3.7
fire-resistant laminated glass
laminated glass (3.1) where at least one interlayer reacts to the high temperature to give the product its
fire resistance
[SOURCE: EN ISO 12543-1:2021, 3.2.1, modified — synonym removed, Note 1 to entry and Note 2 to entry
removed]
4 Specific instructions for the reaction to fire classification of glass products
4.1 General
Testing of organic components of glass products shall follow EN ISO 1716, EN ISO 1182 and/or
EN ISO 11925-2 without deviations.
However, due to the specific properties of glass products, there is a need to adapt the mounting and fixing
of glass products in the test according to EN 13823:2020+A1:2022, SBI test.
NOTE Some glass products are classified A1 according to 96/603/EC: Commission Decision.
4.2 Mounting and fixing instructions for SBI test according to EN 13823
Information about the samples and their mounting conditions are given in EN 13823:2020+A1:2022,
Clause 5 and are completed for glass products by the following considerations:
The dimensions of the specimens shall be according to EN 13823:2020+A1:2022, 5.1.1, i.e. not
subdivided. Therefore EN 13823:2020+A1:2022, 5.2.2 e) is not applicable to glass products.
The two wings of the test specimen are arranged on the trolley according to EN 13823:2020+A1:2022,
Figure 2. On the backside there will be arranged a support frame made from metal profiles. The function
of this support frame is just to hold the glass against the lower U-profile and the upper stop for preventing
the glass panes to fall over. These mounting conditions are only applicable for glass products when the
purpose is to determine the reaction to fire performance of the glass product alone. For the assessment
of glass products which are fixed by gluing or taping in the end-use application, further provisions for the
mounting conditions and the execution of tests are needed. This case is therefore not covered by this
document.
For glass products not supposed to be installed in the vicinity of a wall (e.g. see-through glazing), the
distance of the backside of the glass panes to the backing board should be according to
EN 13823:2020+A1:2022, 5.2.2 as a free-standing product.
For glass products that can be installed in the close vicinity or against a wall (e.g. mirrors, painted glass…),
the distance of the backside of the glass panes to the substrate is between 5 mm and 10 mm. The
mounting should be according to EN 13823:2020+A1:2022, 5.2.2 as a free-standing product. A non-
combustible substrate material should be used to test the generic performance. The burner guard as
described in EN 13823:2020+A1:2022, Clause 4.4.6 f) shall always be used when testing glass products.
When a previous test has shown that this device will not be sufficient to protect the burner, it shall be
replaced by a metal grid with a mesh size of 15 cm x 15 cm and a wire diameter of 6 mm, placed in front
of the glazing on at least 80 % of the glass surface, see Figure 1. The metal grid should always be used
when monolithic glass with applied organic layer is tested.
...