FprEN 14449

Glass in building - Laminated glass and laminated safety glass - Product standard

This European Standard covers the assessment and verification of constancy of performances and the factory production control of laminated glass and laminated safety glass for use in buildings.
NOTE   For glass products with electrical wiring or connections for, e.g. alarm or heating purposes, other directives, e.g. Low Voltage Directive, may apply.

Glas im Bauwesen - Verbundglas und Verbund-Sicherheitsglas - Produktnorm

Diese Europäische Norm umfasst die Bewertung und Überprüfung der Leistungsbeständigkeit und die werkseigene Produktionskontrolle von Verbundglas und Verbund-Sicherheitsglas zur Anwendung im Bauwesen.
ANMERKUNG   Für Glaserzeugnisse mit elektrischer Verkabelung oder Anschlüssen, wie z. B. Alarm  oder Heizungsanwendungen, können andere Richtlinien, z. B. die Niedrigspannungsrichtlinie, gelten.

Verre dans la construction - Verre feuilleté et verre feuilleté de sécurité - Norme de produit

La présente Norme européenne couvre l’évaluation et la vérification de la constance des performances ainsi que le contrôle de la production en usine pour le verre feuilleté et le verre feuilleté de sécurité pour usage dans la construction.
NOTE   Pour les produits verriers équipés d’un câblage ou de branchements électriques pour des besoins d’alarme ou de chauffage par exemple, d’autres directives, comme la Directive Courants Faibles, peuvent s’appliquer.

Steklo v gradbeništvu - Lepljeno steklo in lepljeno varnostno steklo - Standard za proizvod

General Information

• Status: Not Published
• Publication Date: 12-May-2019
• Withdrawal Date: 12-Nov-2019
• ICS: 81.040.20 - Glass in building
• Technical Committee: CEN/TC 129 - Glass in building
• Drafting Committee: CEN/TC 129/WG 3 - Laminated glass
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 03-Mar-2021
• Completion Date: 14-Apr-2025
• Directive: 305/2011 - 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/135 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on flat glass, profiled glass and glass block products
• Ref Project: oSIST prEN 14449:2017 - Glass in building - Laminated glass and laminated safety glass - Product standard

Relations

• Revises: EN 14449:2005 - Glass in building - Laminated glass and laminated safety glass - Evaluation of conformity/Product standard
• Effective Date: 19-Jan-2023

Overview

FprEN 14449 (Glass in building - Laminated glass and laminated safety glass - Product standard) is a CEN draft/European standard that defines how to assess and verify constancy of performance and how to perform factory production control (FPC) for laminated glass and laminated safety glass used in buildings. The standard supports compliance with the EU Construction Products Regulation (Regulation (EU) No. 305/2011) and is used to prepare Declarations of Performance (DoP) and CE marking. Note: glass products with electrical wiring may also fall under other directives (e.g., Low Voltage Directive).

Key Topics

• Scope and definitions for laminated glass and laminated safety glass intended for building use.
• Product description and required information to identify product types for conformity assessment.
• Determination of characteristics to be declared in the DoP, including:
  • Spectrophotometric characteristics (including solar factor g)
  • Durability/conformity assessment
  • Mechanical resistance expressed as bending strength of glass components and stiffness family of interlayer(s)
• Assessment and Verification of Constancy of Performance (AVCP) procedures:
  • Type testing and test reporting
  • Initial inspection of factory and FPC
  • Continuous surveillance and sampling
  • Procedures for multiple production lines, modifications and pre-production products
• Factory Production Control (FPC) requirements and recommended inspection/testing regimes (see informative annexes).
• Testing methods referenced or described (e.g., ball drop, pendulum impact, pummel, shear/adhesion tests) and mechanical resistance to wind, snow, permanent and imposed loads.
• Marking and labelling and relationship to DoP and CE marking.
• Informative annexes on FPC, test methods, mechanical resistance, voluntary third‑party involvement and alignment with EU regulations (Annex ZA).

Applications

• Provides the compliance framework for manufacturers of laminated glass and laminated safety glass to demonstrate consistent product performance.
• Guides testing laboratories and third‑party certifiers in type testing, surveillance and reporting.
• Helps architects, façade engineers and specifiers select laminated glazing systems with verified optical, thermal, mechanical and safety properties.
• Used by regulatory authorities and clients to check that glazing meets Construction Products Regulation requirements and is correctly marked and documented (DoP, CE).

Related standards

The document references and works alongside other EN standards relevant to glazing and testing, for example:

• EN 410 (luminous and solar characteristics)
• EN 356 (security glazing - resistance to manual attack)
• EN 673 (U‑value)
• EN 572 series (basic glass types)

Keywords: laminated glass, laminated safety glass, FprEN 14449, factory production control, AVCP, Declaration of Performance, CE marking, solar factor g, mechanical resistance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2017
Steklo v gradbeništvu - Lepljeno steklo in lepljeno varnostno steklo - Standard za
proizvod
Glass in building - Laminated glass and laminated safety glass - Product standard
Glas im Bauwesen - Verbundglas und Verbund-Sicherheitsglas - Produktnorm
Verre dans la construction - Verre feuilleté et verre feuilleté de sécurité - Norme de
produit
Ta slovenski standard je istoveten z: prEN 14449
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 14449
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2017
ICS 81.040.20 Will supersede EN 14449:2005
English Version
Glass in building - Laminated glass and laminated safety
glass - Product standard
This draft European Standard is submitted to CEN members for enquiry. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14449:2017 E
worldwide for CEN national Members.

prEN 14449:2017 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Requirements . 9
4.1 Product description . 9
4.2 Determination of the characteristic’s performances . 10
4.2.1 Characteristics of laminated glass and laminated safety glass . 10
4.2.2 Determination of characteristics of laminated glass and laminated safety glass . 12
4.3 Characteristics other than listed in 4.2 . 17
5 Assessment and verification of constancy of performance – AVCP. 17
5.1 General . 17
5.2 Determination of the product type (see 5.1, List Entry 1)) . 17
5.2.1 General . 17
5.2.2 Type testing of characteristic’s performances . 18
5.2.3 Test report . 18
5.2.4 Multiple lines/sites . 18
5.3 Factory production control (FPC) . 19
5.3.1 General . 19
5.3.2 Inspection of samples in accordance with the prescribed test plan (see 5.1, List Entry
2) a)) . 19
5.4 Initial inspection of factory and of factory production control (see 5.1, List Entry
2) b)) . 19
5.5 Continuous surveillance and assessment of the factory production control (see 5.1,
List Entry 2 c)) . 20
5.6 Procedure for modifications . 21
5.7 Pre-production products (e.g. prototypes) . 21
6 Marking and/or labelling . 22
6.1 General . 22
6.2 Product marking. 22
Annex A (informative) Factory production control . 23
A.1 Factory Production Control Requirements . 23
A.1.1 General . 23
A.1.2 Organization . 23
A.1.3 Control system . 23
A.1.4 Equipment . 24
A.1.5 Inspection and testing . 24
A.1.6 Non-complying materials/products . 24
A.2 Inspection and testing tables of laminated glass and laminated safety glass
production . 25
A.2.1 Information on Tables A.1 to A.3 . 25
A.2.2 Use of proxy testing . 25
Annex B (informative) Tests for ensuring conformity . 39
B.1 General . 39
prEN 14449:2017 (E)
B.2 Production durability check and regular conformity check of the product . 39
B.3 Details of test methods . 39
B.3.1 General . 39
B.3.2 Details of test methods A long and A short . 40
B.3.3 Details of test method B . 40
B.3.4 Details of test method C . 40
B.3.5 Details of test method D . 41
B.4 Testing protocol . 41
B.4.1 Frequency . 41
B.4.2 Specimen selection . 41
B.5 Outcome of testing. 42
B.5.1 General . 42
B.5.2 Test methods A long and A short . 42
B.5.3 Test method B . 42
B.5.4 Test method C . 43
B.5.5 Test method D . 43
B.6 Other testing . 43
Annex C (informative) Laminated safety glass: mechanical resistance tests . 44
C.1 General . 44
C.2 Ball drop test . 44
C.2.1 Requirement . 44
C.2.2 Equipment . 44
C.2.3 Test specimen . 45
C.2.4 Procedure . 45
C.3 Pendulum impact test . 45
C.3.1 Requirement . 45
C.3.2 Test equipment. 45
C.3.3 Test specimens . 46
C.3.4 Procedure . 46
C.4 Others. 46
C.4.1 General . 46
C.4.2 Compressive shear test (see Bibliography [10] and [11]) . 46
C.4.3 Pummel test (see Bibliography [12] and [13]) . 46
C.4.4 Tenacity and adhesion test for determination of link between product and impact
performance, i.e. EN 356, EN 12600 (see Bibliography [12]) . 46
Annex D (normative) Safety in use - Mechanical resistance: Resistance against wind, snow,
permanent load and/or imposed loads of the glass unit . 47
Annex E (informative) Provisions for voluntary involvement of third party(ies) . 49
E.1 General . 49
E.2 Voluntary tasks for third parties . 49
E.3 Marking and labelling . 49
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 50
Bibliography . 56

prEN 14449:2017 (E)
European foreword
This document (prEN 14449:2017) 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 CEN Enquiry.
This document will supersede EN 14449:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports basic work requirements of EU Regulation and essential
requirements of EU Directive(s).
For relationship with EU Regulations/Directive(s), see informative Annex ZA, which is an integral part
of this document.
The main changes compared to the previous edition are the following:
a) The standard has been revised to fulfil the requirements of the Regulation (EU) No 305/2011
(Construction Product Regulation), modified by Regulations (EU) No 157/2014, (EU) No 568/2014
and (EU) No 574/2014.
b) The solar factor, g, is listed within the spectrophotometric characteristics to be declared in the
Declaration of Performances (DoP).
c) The durability/conformity assessment is listed within the characteristics to be declared in the DoP.
d) The mechanical resistance shall be given in the DoP by the characteristic bending strength of the
glass components and the stiffness family of the interlayer(s).
This document contains other aspects of importance for trade.
prEN 14449:2017 (E)
1 Scope
This European Standard covers the assessment and verification of constancy of performances and the
factory production control of laminated glass and laminated safety glass for use in buildings.
NOTE For glass products with electrical wiring or connections for, e.g. alarm or heating purposes, other
directives, e.g. Low Voltage Directive, may apply.
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 356, Glass in building — Security glazing — Testing and classification of resistance against manual
attack
EN 410, Glass in building — Determination of luminous and solar characteristics of glazing
EN 572-1, Glass in building — Basic soda-lime silicate glass products — Part 1: Definitions and general
physical and mechanical properties
EN 572-2, Glass in building — Basic soda lime silicate glass products — Part 2: Float glass
EN 572-3, Glass in building — Basic soda lime silicate glass products — Part 3: Polished wired glass
EN 572-4, Glass in building — Basic soda lime silicate glass products — Part 4: Drawn sheet glass
EN 572-5, Glass in building — Basic soda lime silicate glass products — Part 5: Patterned glass
EN 572-6, Glass in building — Basic soda lime silicate glass products — Part 6: Wired patterned glass
EN 572-8, Glass in building — Basic soda-lime silicate glass products — Part 8: Supplied and final cut sizes
EN 673, Glass in building — Determination of thermal transmittance (U value) — Calculation method
EN 1036-1, Glass in building — Mirrors from silver-coated float glass for internal use — Part 1:
Definitions, requirements and test methods
EN 1063, Glass in building — Security glazing — Testing and classification of resistance against bullet
attack
EN 1096-1, Glass in building — Coated glass —- Part 1: Definitions and classification
EN 1748-1-1, Glass in building — Special basic products —Borosilicate glasses — Part 1-1: Definition and
general physical and mechanical properties
EN 1748-2-1, Glass in building — Special basic products - Glass ceramics — Part 2-1 Definitions and
general physical and mechanical properties
EN 1863-1, Glass in building — Heat strengthened soda lime silicate glass — Part 1: Definition and
description
EN 12150-1, Glass in building — Thermally toughened soda lime silicate safety glass — Part 1: Definition
and description
prEN 14449:2017 (E)
EN 12337-1, Glass in building — Chemically strengthened soda lime silicate glass — Part 1: Definition and
description
EN 12600, Glass in building — Pendulum test — Impact test method and classification for flat glass
EN 12758, Glass in building — Glazing and airborne sound insulation - Product descriptions and
determination of properties
EN 12898, Glass in building — Determination of the emissivity
EN 13024-1, Glass in building — Thermally toughened borosilicate safety glass — Part 1: Definition and
description
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
EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification
using data from external fire exposure to roofs tests
EN 13541, Glass in building — Security glazing — Testing and classification of resistance against
explosion pressure
EN 14178-1, Glass in building — Basic alkaline earth silicate glass products — Part 1: Float glass
EN 14179-1, Glass in building — Heat soaked thermally toughened soda lime silicate safety glass —
Part 1: Definition and description
EN 14321-1, Glass in building - Thermally toughened alkaline earth silicate safety glass — Part 1:
Definition and description
EN 15681-1, Glass in building — Basic alumino silicate glass products — Part 1: Definitions and general
physical and mechanical properties
EN 15682-1, Glass in building — Heat soaked thermally toughened alkaline earth silicate safety glass —
Part 1: Definition and description
EN 15998, Glass in building — Safety in case of fire, fire resistance — Glass testing methodology for the
purpose of classification
EN 16477-1, Glass in building — Painted glass for internal use — Part 1: Requirements
prEN 16612, Glass in building — Determination of the lateral load resistance of glass panes by calculation
EN ISO 12543-1:2011, Glass in building — Laminated glass and laminated safety glass — Part 1:
Definitions and description of component parts (ISO 12543-1:2011)
EN ISO 12543-2:2011, Glass in building — Laminated glass and laminated safety glass — Part 2:
Laminated safety glass (ISO 12543-2:2011)
EN ISO 12543-3:2011, Glass in building — Laminated glass and laminated safety glass — Part 3:
Laminated glass (ISO 12543-3:2011)
prEN 14449:2017 (E)
EN ISO 12543-4:2011, Glass in building — Laminated glass and laminated safety glass — Part 4: Test
methods for durability (ISO 12543-4:2011)
EN ISO 12543-5:2011, Glass in building — Laminated glass and laminated safety glass — Part 5:
Dimensions and edge finishing (ISO 12543-5:2011)
EN ISO 12543-6:2011, Glass in building — Laminated glass and laminated safety glass — Part 6:
Appearance (ISO 12543-6:2011)
ISO 9385, Glass and glass-ceramics — Knoop hardness test
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12543-1:2011,
EN ISO 12543-2:2011, EN ISO 12543-3:2011, EN ISO 12543-4:2011, EN ISO 12543-5:2011 and
EN ISO 12543-6:2011, and 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
factory production control
FPC
documented, permanent and internal control of production in a factory, in accordance with this
standard
Note 1 to entry: See also Annexes A, B and C.
3.2
product-type
set of representative performance levels or classes of a construction product, in relation to its essential
characteristics, produced using a given combination of raw materials or other elements in a specific
production process
3.3
essential characteristic
characteristic of the construction product which relate to the basic requirements for construction
works
Note 1 to entry: Basic requirements for construction work are given in the Regulation (EU) No 305/2011,
Annex I.
prEN 14449:2017 (E)
3.4
performance of a construction product
performance related to the relevant essential characteristics, expressed by level or class, or in a
description
3.5
level
result of the assessment of the performance of a construction product in relation to its essential
characteristics, expressed as a numerical value
3.6
class
range of levels, delimited by a minimum and a maximum value, of performance of a construction
product
3.7
type testing
TT
determination of the performance of a product (characteristic, durability), on the basis of either actual
tests or other procedures (such as conventional, standardized, tabulated or general accepted values,
standardized or recognized calculation methods, test reports when made available, …), in accordance
with this document and that demonstrates compliance with this European standard
3.8
test report
document that covers the results of tests undertaken on a representative sample of the product from
production or on a prototype design of the product
3.9
product description
document that details the relevant parameters, e.g. process conditions, structure, type and subtype of
interlayer, type of glasses etc., for defining a product that complies with the standard and that includes
specific reference(s) to characteristics that are modified by the production process
3.10
significant change
variation in performance beyond the permitted tolerance for the characteristic which is not covered by
substitution rules
3.11
folio interlayer
solid film which is placed between the plies of glass or plastics
Note 1 to entry: Folio interlayers differ with respect to the polymer types and their subtypes. Examples of
polymers are PVB, EVA, PUR, ionomers.
Note 2 to entry: Examples of subtypes of polymers are characterized by colour, acoustic properties and
adhesion level.
prEN 14449:2017 (E)
3.12
cast-in-place interlayer
interlayer which is obtained by pouring a liquid between the plies of glass or plastic glazing material
and curing it thus achieving a solid film
Note 1 to entry: Cast-in-place interlayers differ with respect to the polymer types and their subtypes. Examples
of polymers are PUR, PMMA.
Note 2 to entry: Examples of subtypes of polymers depend on characteristics in use: e.g. clear or tinted, acoustic,
safety, etc.
3.13
fire protection interlayer
interlayer which comprises a significant amount of water, and reacts at high temperatures to give the
product its fire resistant properties
3.14
product family
group of products determined by the manufacturer, which is made with the same interlayer type
(polymers for folio/sheets, cast in place interlayers, fire protection interlayers) and which is tested for
TT/FPC using the same test method
Note 1 to entry: The presence of inserts may lead to a new family.
Note 2 to entry: The presence of different interlayer subtypes may lead to a new family.
4 Requirements
4.1 Product description
For conformity purposes, the laminated/laminated safety glass manufacturer is responsible for the
preparation and maintenance of a product description. This description shall describe the product and
product family. A product family can be related e.g. to the performance, to the composition or to a
combination of these.
An exchange of interlayer types within one product family is not allowed. An exchange of subtypes is
allowed provided the performance characteristics remain unchanged.
Disclosure of the product description shall be at the discretion of the laminated/laminated safety glass
manufacturer or his agent except in the case of regulatory requirements.
The product description shall contain at least the following:
— a reference to EN ISO 12543-1 to -6 and prEN 14449, and all other standards with which the
manufacturer claims compliance,
— component parts:
— glass types and thicknesses (see 4.2.1.2);
— plastics glazing sheet materials types and thicknesses;
— interlayer types, subtypes and thicknesses;
— the order of stacking of the components;
prEN 14449:2017 (E)
— lamination process, e.g. folio, cast-in-place, etc.;
— coatings if present and their position relative to an interlayer.
The interlayers may be listed either in full, i.e. chemical composition, or by a manufacturer's code.
The definition of product families shall be consistent with the product description.
The substitution of materials and/or components shall maintain the conformity with the product
description. The substituting materials and/or components can be added to the product family and also
the product description when compliance has been demonstrated.
4.2 Determination of the characteristic’s performances
4.2.1 Characteristics of laminated glass and laminated safety glass
4.2.1.1 General
The characteristics of laminated glass and laminated safety glass, listed in Table 1, are those of the glass
panes used as components (see 4.2.1.2). Since they are not changed significantly by the laminating
process, they shall be used for laminated glass and laminated safety glass.
For glass substrates covered by Harmonized European specifications, generally accepted values,
declared values, or calculated values of the characteristics listed in Table 1 shall be used.
Table 1 — Characteristics of glass components
Characteristic Symbol Unit
Density ρ 3
kg/m
Hardness (Knoop hardness in accordance with ISO 9385) HK Dimensionless
0,1/20
Young's modulus E GPa
Poisson's ratio μ Dimensionless
Characteristic bending strength ƒ MPa
g, k
Resistance against sudden temperature changes and temperature
K
differentials
Specific heat capacity c J/(kg.K)
Coefficient of linear expansion α -1
l K
Thermal conductivity λ W/(m.K)
Mean refractive index to visible radiation n Dimensionless
4.2.1.2 Glass panes used as components for the production of laminated and laminated safety
glass
4.2.1.2.1 General
Glass substrates used for the production of laminated glass and laminated safety glass:
— shall be covered by Harmonized European Specifications (as defined in regulation EU 305/2011) as
listed below, or,
prEN 14449:2017 (E)
— if not covered by Harmonized European Specifications, demonstration shall be made that those
glasses have a chemical composition and a mechanical stability over time equivalent to the
requirements of the relevant standard listed.
4.2.1.2.2 Basic glasses
These are glass products manufactured from soda lime silicate glass in accordance with EN 572-1 and
consist of the follows:
— Float glass EN 572-2
— Polished wired glass EN 572-3
— Drawn sheet glass EN 572-4
— Patterned glass EN 572-5
— Wired patterned glass EN 572-6
— Supplied and final cut sizes EN 572-8
4.2.1.2.3 Special basic glasses
These are glass products manufactured from a variety of compositions, which are in accordance with
appropriate European standards, and consist of the follows:
— Borosilicate glass EN 1748-1-1
— Glass ceramics EN 1748-2-1
— Alkaline earth silicate glass EN 14178-1
— Alumino silicate glass EN 15681-1
4.2.1.2.4 Strengthened glasses
These are soda lime silicate glasses that have been strengthened by thermal or chemical means and are
as follows:
— Heat strengthened EN 1863-1
— Chemically strengthened EN 12337-1
4.2.1.2.5 Thermally toughened safety glasses
These are glasses that have been toughened by thermal treatment and are as follows:
— Thermally toughened soda lime silicate safety glass EN 12150-1
— Thermally toughened borosilicate safety glass EN 13024-1
— Heat soaked thermally toughened soda lime silicate safety glass EN 14179-1
— Thermally toughened alkaline earth silicate safety glass EN 14321-1
— Heat soaked thermally toughened alkaline earth silicate safety glass EN 15682-1
4.2.1.2.6 Coated glass
— Coated glass EN 1096-1
4.2.1.2.7 Surface worked glass
— Surface worked glass (e.g. sand blasted, acid etched)
prEN 14449:2017 (E)
The glass panes, processed or unprocessed, may be:
— transparent, translucent or opaque;
— clear or coloured.
4.2.1.2.8 Mirrors
— Silvered glass EN 1036-1
4.2.1.2.9 Painted glass
— Painted glass EN 16477-1
4.2.2 Determination of characteristics of laminated glass and laminated safety glass
4.2.2.1 General
If the laminated glass and/or laminated safety glass manufacturer wishes to claim that any performance
characteristic is independent of the production equipment used then the factory production control
system shall be in accordance with this document including his specific process control conditions.
When a coated glass is used with the coating not facing the interlayer, a new type test as given in 4.2.2.3
to 4.2.2.11 and 4.2.2.15 is not necessary provided that the requirements of Annexes B and C are fulfilled.
4.2.2.2 Safety in the case of fire – Resistance to fire
Fire resistance shall be determined and classified in accordance with EN 13501-2.
The testing methodology specified in EN 15998 shall be used for glass products that are claiming fire
resistance.
4.2.2.3 Safety in the case of fire - Reaction to fire
Reaction to fire shall be determined and classified in accordance with EN 13501-1.
An increase of glass thickness or change in stacking order will not adversely affect the classification
with respect to reaction to fire.
4.2.2.4 Safety in the case of fire - External fire performance (for roof coverings only)
Where the manufacturer wishes to declare external fire performance (e.g. when subject to regulatory
requirements), the product shall be tested and classified in accordance with EN 13501-5.
A test performed with clear float glass is regarded representative for tinted, patterned, coated, surface
treated and thermally treated substrates.
4.2.2.5 Safety in use - Bullet resistance: shatter properties and resistance to attack
Bullet resistance shall be determined and classified in accordance with EN 1063.
However the following exceptions apply:
— For S-applications: If further glasses and interlayers are added, the classification remains the same.
— For NS- Application: If further glasses and interlayers are added on the attack side, the classification
remains the same.
— If annealed glass is replaced by heat strengthened glass of the same thickness the classification
remains the same.
prEN 14449:2017 (E)
In those cases, no new bullet resistance test is necessary to maintain the same class.
4.2.2.6 Safety in use – Explosion resistance: impact behaviour and resistance to impact
Explosion resistance shall be determined and classified in accordance with EN 13541.
4.2.2.7 Safety in use – Burglar resistance: shatter properties and resistance to attack
Burglar resistance shall be determined and classified in accordance with EN 356.
However:
— If further glasses and interlayers are added, the classification remains the same.
— If interlayer and/or glass thickness(es) are increased, the classification remains the same.
— If annealed glass is replaced by heat strengthened glass, the classification remains the same.
In those cases, no new burglar resistance test is necessary to maintain the same class.
4.2.2.8 Safety in use - Pendulum body impact resistance: shatter properties (safe breakability)
and resistance to impact
— Pendulum body impact resistance shall be determined and classified in accordance with EN 12600.
NOTE Laminated glass conforming to EN ISO 12543-3 (without classification on the basis of EN 12600) will
be declared NPD.
When the essential characteristics comprise bullet resistance, explosion resistance and/or burglar
resistance, and the product is to be defined as a laminated safety glass then the classification according
to EN 12600 can be undertaken on test specimens that consist of two glasses, thickness 3 mm nominal,
separated by an interlayer, thickness 0,76 mm nominal. When for a type of glass no 3 mm nominal
exists, the nearest thickness shall be used. When for a type of interlayer no 0,76 mm nominal exist, the
nearest thickness shall be used.
However,
— If the interlayer thickness is increased no new pendulum impact test is necessary to maintain the
same class, provided that the interlayer subtype remains the same.
— If glass thickness is increased no new pendulum impact test is necessary to maintain the same class,
provided that the glass type remains the same and the interlayer thickness is at least 0,5 mm.
— If annealed glass is replaced by thermally treated glasses no new pendulum impact test is necessary
to maintain the same class.
4.2.2.9 Safety in use – Mechanical resistance: Resistance against sudden temperature changes
and temperature differentials
The resistance against sudden temperature changes and temperature differentials is a generally
accepted value. That value is given in the standards for the appropriate glass substrate (see 4.2.1.2). If
the laminated glass or laminated safety glass is made from different glass types then the lowest value
given in the corresponding standards shall be declared.
4.2.2.10 Safety in use – Mechanical resistance: Resistance against wind, snow, permanent load
and/or imposed loads of the glass unit
The ordered assemblies of laminated glass or laminated safety glass (thickness and types of glass
components or plastic glazing sheet materials – interlayers) shall ensure the resistance against wind,
prEN 14449:2017 (E)
snow, permanent load, and other mechanical, (quasi-) static action, which shall be checked in
accordance with prEN 16612.
NOTE prEN 16613 gives information on the determination of mechanical properties of interlayers. This
information will be used within prEN 16612.
As long as prEN 16612 is not applicable for the glass design with respect to the concerned construction
or building site then the current method of determining mechanical resistance in the country of
destination shall be applied.
Mechanical resistance shall be declared as described in Annex D.
4.2.2.11 Protection against noise – Direct airborne sound reduction
The sound reduction indexes shall be determined in accordance with EN 12758.
The values to be declared shall be rounded down to the nearest whole number.
4.2.2.12 Energy conservation and heat retention – Thermal properties
The thermal transmittance value (U-value) shall be determined in accordance with the following
procedure:
a) The normal emissivity ε of the two glass surfaces facing the outside shall be the declared value of
the glass component manufacturer. When the glass is uncoated, the emissivity shall be taken equal
to 0,837.
b) In the case of external surface(s) being coated, and if the information is not available, the emissivity
shall be determined in accordance with EN 12898;
c) The U-value shall be determined by calculation in accordance with EN 673, with the normal
emissivity as defined above and the nominal thickness of the glass panes.
4.2.2.13 Energy conservation and heat retention – Radiation properties: Light transmittance
and reflectance
The light transmittance and light reflectance shall be determined either:
a) by measurement following EN 410, or
b) in accordance with the following procedure:
1) The light transmittance and light reflectance spectra of the glass components corresponding to
the values declared by the manufacturer shall be used.
2) The light transmittance and light reflectance spectra of the interlayer shall be determined in
accordance with EN 410:
i) The light transmittance and light reflectance spectra of one sample of laminated glass,
made of 1 specific interlayer and 2 identical glass components of known thicknesses, shall
be measured.
ii) The light transmittance and light reflectance spectra of one sample of the same glass as the
glass components referred to above shall be measured.
iii) The spectra of the interlayer shall be derived by calculation in accordance with EN 410.
prEN 14449:2017 (E)
3) The light transmittance and the light reflectance of any composition including the interlayer
shall be calculated according to EN 410 with the spectra as defined above.
4) The tool used to calculate the light transmittance and the light reflectance shall be validated.
The tolerance on the calculated light transmittance and light reflectance is derived from the tolerances
on the characteristics of the components and the composition of the laminated glass.
4.2.2.14 Energy conservation and heat retention – Radiation properties: Solar energy
characteristics
The solar direct transmittance, the solar direct reflectance and the total solar energy transmittance
(solar factor or g-value) shall be determined either:
a) by measurement following EN 410, or
b) in accordance with the following procedure:
1) The solar direct transmittance and solar direct reflectance spectra of the glass components
corresponding to the values declared by the manufacturer shall be used.
2) The solar direct transmittance and solar direct reflectance spectra of the interlayer shall be
determined in accordance with EN 410:
i) The solar direct transmittance and solar direct reflectance spectra of one sample of
laminated glass, made of 1 specific interlayer and 2 identical glass components of known
thicknesses, shall be measured.
ii) The solar direct transmittance and solar direct reflectance spectra of one sample of the
same glass as the glass components referred to above shall be measured.
iii) The spectra of the interlayer shall be derived by calculation in accordance with EN 410.
3) The solar direct transmittance, the solar direct reflectance and the total solar energy
transmittance (solar factor or g-value) of any composition including the interlayer, shall be
calculated according to EN 410 with the spectra as defined above.
4) The tool used to calculate the solar direct transmittance, the solar direct reflectance and the
total solar energy transmittance (solar factor or g-value) shall be validated.
The tolerance on the calculated solar energy characteristics is derived from the tolerances on the
characteristics of the components and the composition of the laminated glass.
When relevant, the solar factor calculated from both sides can be declared. In that case, it shall be
declared as g / g'. The same orientation convention as for ρ / ρ' shall be observed.
e e
4.2.2.15 Durability / Type of laminated glass/laminated safety glass
Products shall conform to the definition, to the manufacturer’s product description and fulfil the
requirements of laminated glass or laminated safety glass.
The type testing concerns the product aspects as listed in Table 2.
prEN 14449:2017 (E)
Table 2 — Durability / type of laminated glass
Product Standard Relevant Test Durability/type
clauses methods
Laminated glass/laminated safety glass EN ISO 12543-3/ 5.1.2 AL,C,UV I
EN ISO 12543-2 5.2
5.3
Laminated glass/laminated safety glass EN ISO 12543-3/ 5.1.3 AS,C,UV II
incorporating plastic glazing material
EN ISO 12543-2 5.2
5.3
Fire resistant laminated glass/laminated EN ISO 12543-3/ 6.2 B,D III
safety glass without UV
EN ISO 12543-2
Fire resistant laminated glass/laminated EN ISO 12543-3/ 6.
...