EN 1279-1:2018
(Main)Glass in Building - Insulating glass units - Part 1: Generalities, system description, rules for substitution, tolerances and visual quality
Glass in Building - Insulating glass units - Part 1: Generalities, system description, rules for substitution, tolerances and visual quality
This document (all parts) covers the requirements for insulating glass units. The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, bonded glazing for doors, windows and curtain walling, roofs and partitions.
The achievement of the requirements of this standard indicates that insulating glass units fulfil the needs for intended use and ensures by means of the evaluation of conformity to this standard that, visual, energetic, acoustic, safety parameters do not change significantly over time.
In cases where there is no protection against direct ultraviolet radiation or permanent shear load on the edge seal, as in bonded glazing for doors, windows and curtain walling systems, it is essential to follow additional European Technical Specifications (see EN 15434, EN 13022 1 and prEN 16759).
Insulating glass units that are intended for artistic purposes (e.g. lead glass or fused glass) are excluded from the scope of this standard.
Vacuum insulating glass is not covered by this standard (see ISO DIS 19916 1).
Glass/plastics composites are under the scope as long as the surface of contact with sealants is a glass component.
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.
This European Standard gives definitions for insulating glass units and covers the rules for the system description, the optical and visual quality and the dimensional tolerances thereof and describes the substitution rules based on an existing system description.
Glas im Bauwesen - Mehrscheiben-Isolierglas - Teil 1: Allgemeines, Systembeschreibung, Austauschregeln, Toleranzen und visuelle Qualität
Dieses Dokument (alle Teile) behandelt die Anforderungen an Mehrscheiben-Isoliergläser. Die Haupt-verwendungsgebiete für Mehrscheiben-Isoliergläser sind der Einbau in Fenster, Türen, Vorhangfassaden, geklebte Verglasungen für Türen, Fenster, vorgehängte Fassaden, Dächer und Trennwände.
Das Erfüllen der Anforderungen dieser Norm bedeutet, dass Mehrscheiben-Isoliergläser den Bedarf für den bestimmungsgemäßen Gebrauch erfüllen und stellt mit Hilfe der Bewertung der Konformität mit dieser Norm sicher, dass visuelle, energetische, akustische und sicherheitsbezogene Parameter sich mit der Zeit nicht signifikant ändern.
In Fällen, in denen kein Schutz vor direkter UV-Bestrahlung gegeben ist oder bei dauernden, auf den Rand-verbund wirkenden Scherlasten wie in geklebten Verglasungen für Türen, Fenster und vorgehängte Fassaden sind zusätzliche Europäische Technische Spezifikationen zu befolgen (siehe EN 15434, EN 13022-1 und prEN 16759).
Mehrscheiben-Isoliergläser für künstlerische Zwecke (z. B. Bleiglas oder verschmolzenes Glas) sind nicht Gegenstand dieser Norm.
Vakuumisolierglas ist nicht Gegenstand dieser Norm (siehe ISO/DIS 19916-1).
Glas/Kunststoff-Verbunde gehören zum Anwendungsbereich, solange die Oberfläche, die mit dem Dichtstoff in Kontakt steht, aus Glas ist.
ANMERKUNG Für Glaserzeugnisse mit elektrischer Verdrahtung oder elektrischen Anschlüssen, für z. B. Alarm- oder Heizfunktionen, können weitere Richtlinien, z. B. die Niederspannungsrichtlinie, gelten.
Diese Europäische Norm umfasst Definitionen für Mehrscheiben-Isoliergläser und die Regeln für die System-beschreibung, die optische und visuelle Qualität sowie die Maßtoleranzen und beschreibt die Regeln für den Austausch innerhalb einer bestehenden Systembeschreibung.
Verre dans la construction - Vitrage isolant - Partie 1 : Généralités, description du système, règles de substitution, tolérances et qualité visuelle
Le présent document (toutes les parties) couvre les exigences relatives aux vitrages isolants. Les usages prévus des vitrages isolants sont principalement les installations dans des fenêtres, des portes, des façades-rideaux, des vitrages extérieurs collés, des toitures et des cloisons.
Lorsque les exigences à cette norme sont satisfaites, les vitrages isolants répondent aux besoins pour l'usage prévu et il est assuré, du fait de l'évaluation de la conformité à cette norme, que les paramètres visuels, énergétiques, acoustiques et de sécurité ne varient pas de façon significative dans le temps.
En l'absence de protection contre les rayonnements ultraviolets directs en cas de cisaillement permanent sur les bords, comme dans le cas des vitrages extérieurs collés, il est nécessaire de se conformer à des Spécifications Techniques Européennes supplémentaires (voir EN 15434 et EN 13022-1 et prEN 16759).
Les vitrages isolants, destinés à une utilisation artistique (par exemple, verre au plomb ou verre fondu) ne relèvent pas du domaine d'application de la présente norme.
Les vitrages isolants à lame de vide ne sont pas couverts par la présente norme (voir ISO DIS 19916-1).
Les composites verre/plastique relèvent du domaine d'application de la présente norme pour autant que la surface de contact avec les mastics de scellement soit un composant verrier.
NOTE Pour les produits verriers équipés d'un câblage ou de branchements électriques pour les besoins d'alarme ou de chauffage par exemple, d'autres directives, comme par exemple la Directive « Basse tension », peuvent s'appliquer.
La présente Norme européenne donne des définitions pour les vitrages isolants et couvre les règles pour la description du système, la qualité optique et visuelle ainsi que les tolérances dimensionnelles et décrit les règles de substitution, dans une description de système existant.
Steklo v gradbeništvu - Izolacijsko steklo - 1. del: Splošno, opis sistema, pravila za zamenjavo, tolerance in vizualna kakovost
Ta evropski standard (vsi deli) zajema zahteve za izolacijsko steklo. Glavne predvidene uporabe izolacijskega stekla so vgradnja v okna, vrata, obešene fasade, strukturno zasteklitev, strehe in predelne stene.
Izpolnitev zahtev tega standarda pomeni, da izolacijsko steklo izpolnjuje potrebe predvidene uporabe in s pomočjo ocene skladnosti s tem standardom zagotovi, da se vizualni, energetski, zvočni in varnostni parametri s časom bistveno ne spremenijo.
Kadar ni nobene zaščite pred neposrednim ultravijoličnim sevanjem ali trajnimi strižnimi obremenitvami robov, kot pri sistemih strukturnih zasteklitev, je nujno upoštevati dodatne evropske tehnične specifikacije (glejte EN 15434 in EN 13022-1).
Izolacijsko steklo za umetniške namene (npr. svinčevo steklo ali taljeno steklo) ne spada na področje uporabe tega standarda. Stekleni/polimerni kompoziti spadajo na področje uporabe tega standarda, če je površina stika s tesnili steklena komponenta.
OPOMBA: za steklene proizvode z električno napeljavo ali priključki za npr. alarmne ali grelne namene se lahko uporabljajo druge direktive, npr. direktiva o nizki napetosti.
Ta evropski standard določa definicije za izolacijsko steklo in zajema pravila za opis sistema, optično in vizualno kakovost ter dimenzijska odstopanja in opisuje pravila o zamenjavi znotraj obstoječega opisa sistema. Podaja tudi informativna navodila za vgradnjo izolacijskega stekla v okna in fasade.
General Information
- Status
- Published
- Publication Date
- 24-Jul-2018
- Withdrawal Date
- 30-Jan-2019
- Technical Committee
- CEN/TC 129 - Glass in building
- Drafting Committee
- CEN/TC 129/WG 4 - Insulating glass units
- Current Stage
- 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
- Start Date
- 13-Mar-2025
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 01-Aug-2018
- Effective Date
- 24-Dec-2014
Overview
EN 1279-1:2018 - Glass in Building: Insulating glass units - Part 1 - sets out the general principles, system description, substitution rules, dimensional tolerances and visual quality requirements for insulating glass units (IGUs). It defines terminology and the structure of an IGU system, describes how components relate and can be substituted, and establishes the basis for evaluating conformity so that visual, energetic, acoustic and safety characteristics remain stable over time. The standard assumes a reference service life (25 years) and excludes vacuum insulating glass and artistic glass (e.g., lead or fused glass).
Key topics and requirements
- System description and definitions: formal definitions of IGU components (glass panes, spacers, edge seals, cavity inserts) and a framework for documenting an IGU system.
- Rules for substitution: prescriptive rules for replacing materials or components within an existing IGU system without invalidating the system description.
- Dimensional tolerances and visual quality: observation conditions, allowable visual faults, spacer straightness and tolerance guidance to assess appearance and acceptability.
- Edge-seal considerations: symbols/abbreviations and basic requirements for the edge seal that influence durability and barrier performance.
- Durability and compatibility: guidance on component compatibility, diffusion/equilibrium issues and interactions that affect long-term performance.
- Annexed guidance: normative and informative annexes with example system descriptions, IGU type examples, substitution tables, visual assessment methods and compatibility factors.
(Part 1 is complemented by EN 1279 parts 2–6 which cover moisture and gas tests, edge-seal test methods, product standards and factory production control.)
Practical applications
EN 1279-1:2018 is used to:
- Prepare product specifications and technical documentation for insulating glass units (IGUs).
- Define manufacturing change control and allowable substitutions without re-qualification of the whole system.
- Establish acceptance criteria for visual appearance and dimensional tolerances for completed IGUs.
- Support conformity assessment and quality assurance in production and procurement.
Who uses this standard
- IGU manufacturers and component suppliers (glass, spacers, sealants, desiccants)
- Façade engineers, architects and specifiers writing glazing performance requirements
- Fabricators, installers and glazing contractors managing component substitution
- Test laboratories and certification bodies performing conformity checks
- Building authorities and product compliance teams
Related standards
- EN 1279-2, EN 1279-3, EN 1279-4, EN 1279-5, EN 1279-6 (related IGU test methods, product standards and FPC)
- EN 13022-1, EN 15434, prEN 16759 (for bonded/structural glazing)
- ISO DIS 19916-1 (vacuum IGU - excluded from EN 1279 scope)
Keywords: EN 1279-1:2018, insulating glass units, IGU, glass in building, edge seal, visual quality, system description, tolerances, rules for substitution, IGU durability.
Frequently Asked Questions
EN 1279-1:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Glass in Building - Insulating glass units - Part 1: Generalities, system description, rules for substitution, tolerances and visual quality". This standard covers: This document (all parts) covers the requirements for insulating glass units. The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, bonded glazing for doors, windows and curtain walling, roofs and partitions. The achievement of the requirements of this standard indicates that insulating glass units fulfil the needs for intended use and ensures by means of the evaluation of conformity to this standard that, visual, energetic, acoustic, safety parameters do not change significantly over time. In cases where there is no protection against direct ultraviolet radiation or permanent shear load on the edge seal, as in bonded glazing for doors, windows and curtain walling systems, it is essential to follow additional European Technical Specifications (see EN 15434, EN 13022 1 and prEN 16759). Insulating glass units that are intended for artistic purposes (e.g. lead glass or fused glass) are excluded from the scope of this standard. Vacuum insulating glass is not covered by this standard (see ISO DIS 19916 1). Glass/plastics composites are under the scope as long as the surface of contact with sealants is a glass component. 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. This European Standard gives definitions for insulating glass units and covers the rules for the system description, the optical and visual quality and the dimensional tolerances thereof and describes the substitution rules based on an existing system description.
This document (all parts) covers the requirements for insulating glass units. The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, bonded glazing for doors, windows and curtain walling, roofs and partitions. The achievement of the requirements of this standard indicates that insulating glass units fulfil the needs for intended use and ensures by means of the evaluation of conformity to this standard that, visual, energetic, acoustic, safety parameters do not change significantly over time. In cases where there is no protection against direct ultraviolet radiation or permanent shear load on the edge seal, as in bonded glazing for doors, windows and curtain walling systems, it is essential to follow additional European Technical Specifications (see EN 15434, EN 13022 1 and prEN 16759). Insulating glass units that are intended for artistic purposes (e.g. lead glass or fused glass) are excluded from the scope of this standard. Vacuum insulating glass is not covered by this standard (see ISO DIS 19916 1). Glass/plastics composites are under the scope as long as the surface of contact with sealants is a glass component. 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. This European Standard gives definitions for insulating glass units and covers the rules for the system description, the optical and visual quality and the dimensional tolerances thereof and describes the substitution rules based on an existing system description.
EN 1279-1:2018 is classified under the following ICS (International Classification for Standards) categories: 81.040.20 - Glass in building. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1279-1:2018 has the following relationships with other standards: It is inter standard links to EN 1279-1:2004/AC:2006, EN 1279-1:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1279-1:2018 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 88/609/EEC; Standardization Mandates: M/135, M/135_AM1. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 1279-1:2018 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steklo v gradbeništvu - Izolacijsko steklo - 1. del: Splošno, opis sistema, pravila za zamenjavo, tolerance in vizualna kakovostGlas im Bauwesen - Mehrscheiben-Isolierglas - Teil 1: Allgemeines, Systembeschreibung, Austauschregeln, Toleranzen und visuelle QualitätVerre dans la construction - Vitrage isolant - Partie 1: Généralités, description du système, règles de substitution, tolérances et qualité visuelleGlass in Building - Insulating glass units - Part 1: Generalities, system description, rules for substitution, tolerances and visual quality81.040.20Steklo v gradbeništvuGlass in buildingICS:Ta slovenski standard je istoveten z:EN 1279-1:2018SIST EN 1279-1:2018en,fr,de01-oktober-2018SIST EN 1279-1:2018SLOVENSKI
STANDARDSIST EN 1279-1:2004/AC:2006SIST EN 1279-1:20041DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1279-1
July
t r s z ICS
z sä r v rä t r Supersedes EN
s t y {æ sã t r r vEnglish Version
Glass in Building æ Insulating glass units æ Part
sã Generalitiesá system descriptioná rules for substitutioná tolerances and visual quality Verre dans la construction æ Vitrage isolant æ Partie
s ã Généralitésá description du systèmeá règles de substitutioná tolérances et qualité visuelle
Glas im Bauwesen æ MehrscheibenæIsolierglas æ Teil
sã Allgemeinesá Systembeschreibungá Austauschregelná Toleranzen und visuelle Qualität This European Standard was approved by CEN on
{ March
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t y {æ sã t r s z ESIST EN 1279-1:2018
System description of insulating glass units . 22 Annex B (normative)
Examples of insulating glass unit systems . 23 B.1 General . 23 B.2 Organic sealed insulating glass units with rigid hollow spacer . 23 B.3 Insulating glass units sealed by hot applied flexible spacer incorporating desiccant . 23 B.4 Insulating glass units with prefabricated flexible spacer . 24 B.5 Organic sealed insulating glass units with U-channel shaped spacer incorporating desiccant matrix . 25 B.6 Air filled insulating glass units sealed by a metal strip between the glass panes . 27 Annex C (informative)
Compatibility of components within an insulating glass unit system . 28 C.1 Compatibility . 28 C.2 Diffusion and equilibrium . 28 C.3 Contact . 28 C.4 Interaction . 28 C.5 Factors affecting compatibility . 28 SIST EN 1279-1:2018
Rules to substitute materials and components, possible changes within components and addition in the system description . 30 D.1 General comments. 30 D.2 Tables of possibilities to substitute materials and components, and of possible changes within components . 30 D.3 Addition of components . 35 D.3.1 Addition of cavity inserts without change of the permeation barrier design . 35 D.3.2 Addition of cavity inserts with change of the permeation barrier design . 35 Annex E (informative)
Edge seal strength comparison in case of substituting outer sealant . 36 Annex F (normative)
Visual quality of insulating glass units . 37 F.1 General . 37 F.2 Observation conditions . 37 F.3 Insulating glass unit made of two panes of monolithic glass . 38 F.3.1 Spot faults . 38 F.3.2 Residues . 39 F.3.3 Linear / extended fault . 39 F.4 Insulating glass units other than made of two monolithic glass panes. 39 F.5 Insulating glass unit containing a heat treated glass . 40 F.6 Edge defects . 40 F.7 Tolerance on spacer straightness . 40 F.8 Curved insulating glass units . 41 Annex G (informative)
Other visual aspects of insulating glass units . 42 G.1 General . 42 G.2 Inherent colour . 42 G.3 Difference in insulating glass unit colour . 42 G.4 Interference effect . 42 G.5 Specific effect due to barometric conditions . 42 G.6 Multiple reflections . 42 G.7 Anisotropy (iridescence) . 43 G.8 Condensation on the external surface of the insulating glass unit . 43 G.9 Wetting of glass surfaces . 43 Bibliography . 44
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 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 (as specified in 6.1) 3.1.1 IGU type A IGU, when used for installation without permanent shear load in the sealant and protected against direct UV exposure on edge seal 3.1.2 IGU type B IGU, when used for installation with at least one edge not completely protected against direct UV radiation without permanent shear load in the sealant 3.1.3 IGU type C IGU when used for installation as bonded glazing for doors, windows and curtain walling with possible permanent shear load on edge sealant with or without direct UV radiation exposure Note 1 to entry: Permanent shear load can be avoided by mechanical support to carry the weight. Note 2 to entry: For IGU type B and C additional requirements in accordance with EN 15434 and EN 13022-1 may apply. SIST EN 1279-1:2018
Figure 1 — Example of permeation geometry 3.6 cross-over stress sealant tensile strength value at which its stress/strain curve crosses the line joining a stress of 0,50 MPa and a strain of 50 % Note 1 to entry: Value is determined following EN 1279-4:2018, Annex A. SIST EN 1279-1:2018
Figure 2 — Main families of spacers 3.16 hollow spacer spacer intended to be filled with desiccant 3.17 rigid spacer frame set of hollow spacers, that provide enough rigidity to be
preassembled prior to application and applied against one pane of the insulating glass unit before the assembly Note 1 to entry: examples of rigid spacer frame are a frame bent with joint piece or connected with corner keys, or a welded frame. 3.18 hollow metallic spacer hollow spacer, painted or not, where at least 1/4 of the inner sealant adhesion height r (see Figure 3) and all of the contact surface with outer sealant shall be metallic adhesion surface (see 3.23) 3.19 joint piece piece that connects parts of a spacer SIST EN 1279-1:2018
«2
® d «1) quantity of water vapour steadily transmitted through a 2 mm sealant film at specified conditions of temperature and water vapour concentration Note 1 to entry: Water vapour transmission rate (WVTR) was called moisture vapour transmission rate (MVTR) in the previous version of the standard. 3.44 gas permeation rate
«2
® d «1) quantity of gas, steadily transmitted through a 2 mm sealant film at specified conditions of temperature and gas concentration 3.45 standard laboratory conditions ambient temperature of (23 ± 2) °C and relative humidity of (50 ± 5) % 3.46 gas chemical compound or element in gaseous state Note 1 to entry: In the context of this standard gas is all gas other than air. 3.47 standard moisture adsorption capacity Tc (%) Total capacity of a desiccant material to adsorb moisture at specified conditions Note 1 to entry: Tc is expressed as the sum of AWAC and LOI following EN 1279-4:2018, Annex E. 3.48 moisture penetration index I (%) amount of available moisture adsorption capacity consumed SIST EN 1279-1:2018
EN 1279-4:2018, Annex E 3.51 gas-filled insulating glass units insulating glass unit in which the cavity is filled with gas(es) usually for improving thermal insulation 3.52 gas concentration ci (%) percentage by volume of gas in the cavity Note 1 to entry: gas concentration is determined by EN 1279-3 testing 3.53 gas leakage rate Li (%.a-1) gas volume leaking from insulating glass unit given in percentage of volume per year at 20 °C 4 Symbols and abbreviations for edge seal The edge seal is characterized by its geometry and when relevant by the weight R of inner sealant per length (g/m). An example is given in Figure 3. SIST EN 1279-1:2018
Key 1 cavity 2 inner sealant 3 outer sealant 4 spacer, containing desiccant r average height of the inner sealant on glass surface s average height of outer sealant on glass surface t height of spacer u average effective height of outer sealant on the back of the spacer v width of spacer w concavity of outer seal d total thickness of IGU Figure 3 — Example of edge seal dimensions 5 Requirements 5.1 General The great number of possible different IGUs allow for a distinction to be made between systems, based on common edge seal design, edge seal materials and other edge components. For conformity control purposes, the manufacturer shall describe his system in a system description, which will be a part of the factory production control documentation. See also Annex A, Annex B and EN 1279-6:2018. The rules for the system description are given in Annex A. It contains mainly a list of the applied edge seal materials and components, the nominal edge seal dimensions of the finished product, the action limits and the absolute limits. Insulating glass unit systems can vary in the materials listed below, the limits in height, width, cavity width, glass thickness and number of cavities. These lists are not exhaustive. SIST EN 1279-1:2018
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 5.2.3 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 following: — 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 5.2.4 Strengthened glasses These are soda lime silicate glasses that have been strengthened by thermal or chemical means and are as follows: SIST EN 1279-1:2018
EN ISO 12543-3 — Laminated safety glass
EN ISO 12543-2 5.2.7 Coated glasses — coated glass
EN 1096-1 A list of coatings allowed to be used in direct contact with certain sealant(s) shall be established by and obtained from the coated glass manufacturer. Further layer combinations or coatings may be added to this list when evaluated in accordance with EN 1279-4:2018, Annex B. If a combination coating / sealant is not in that list, the insulating glass unit manufacturer shall not use that sealant in direct contact with that coating, Some coatings are not allowed to be used in direct contact with a sealant, whatever the sealant. In that case, the coating shall be deleted at the edges of the coated glass. 5.2.8 Surface worked glass — Surface worked glass (e.g. sand blasted, acid etched). The glass panes, processed or unprocessed, may be: — transparent, translucent or opaque; — clear or tinted. 5.2.9 Curved glass — Curved glass
ISO 11485, all relevant parts SIST EN 1279-1:2018
· 18 mm the tensile load on the sealant increases significantly. In these cases, a calculation of the edge seal tensile load should be made using prEN 16612:–1), Annex B. Calculation is made with climate load only. If the calculation result is higher than 1,3 N/mm the insulating glass unit edge seal design should be adjusted. NOTE Some indicative examples of tensile load in the sealant are given in Table 1 and Figure 3. They refer to the boundary condition of EN 1279-2:2018 test (testing temperature: 58 °C, manufacturing temperature: 15 °C). These values are defined without altitude variation. Table 1 — Comparative edge seal maximum tensile load in insulating glass units Insulating glass unit design (dimension of 352x502 mm) Edge seal Maximum tensile load (N/mm) 4/12/4 1,0 4/12/4/12/4 1,3 4/18/4/18/4 1,6 4/16/4 1,0
1) Under preparation. Stage at the time of publication: prEN 16612:2017. SIST EN 1279-1:2018
Key x length of the side (m) y maximum tensile load (N/mm) Figure 4 — Tensile load in insulating glass units depending on the design and the short side (ratio of sides is 1:3) NOTE The maximum load values cannot be recalculated to maximum tensile load within the edge seal components. Substitution of materials and of components shall maintain the conformity of the system with the definition of insulating glass units. The relevant rules are summarized in Tables D.1 to D.7, together with the validation methods. When meeting these requirements, the substituting materials and components shall be added to the system description. Curved insulating glass units according to ISO 11485-1 comply with this standard without having to undergo additional tests provided that non curved insulating glass unit with the same system complies to EN 1279. In this case special attention shall be addressed to the design of the seal system. 6.2 Optical and visual quality of the insulating glass unit Optical and visual quality requirements for insulating glass units are described in Annex F. NOTE Other visual aspects are described in Annex G. 6.3 Dimensional tolerances 6.3.1 General The following tolerances are based on the tolerances for single panes of glass given in the European Standards listed in 5.2, and offer the worst-case situations. Narrowing these tolerances can be a subject of contractual agreement between the insulating glass unit manufacturer and his glass supplier and/or SIST EN 1279-1:2018
Figure 5 — Examples of width and heignt relative to the pane shape The dimensional tolerances shall be part of the system description and subject to the factory production control in relevant clauses of EN 1279-6:2018. Guidance on dimensional tolerances are given in Table 2. Table 2 — Guidance on dimensional tolerances of insulating glass units Double / triple IGU Tolerances on B and H Misalignment all panes
¶ 6 mm, and (B and H)
¶ 2 000 mm
± 2 mm
¶ 2 mm 6 mm < thickest pane
¶ 12 mm, or 2 000 mm < (B or H)
¶ 3 500 mm ±3 mm
¶ 3 mm 3 500 mm < (B or H)
¶ 5 000 mm and thickest pane
¶ 12 mm ±4 mm
¶ 4 mm 1 pane > 12 mm, or (B or H) > 5 000 mm ±5 mm
¶ 5 mm Thicknesses are nominal thickness. Special dimensions and tolerances may be agreed. 6.3.3 Thickness tolerances along the periphery of the unit The actual thickness shall be measured between the outside glass surfaces of the unit, at each corner and at the approximate centre points of the edges. The values shall be measured to 0,01 mm accuracy and given to the nearest 0,1 mm. The measured thicknesses shall not vary from the nominal thickness given by the manufacturer of the insulating glass units by more than the tolerances shown in Table 3. SIST EN 1279-1:2018
Glazing Pane IGU thickness tolerance a double glazing All panes are annealed float glass ±1,0 mm At least one pane is laminated, patterned or not annealed glass ±1,5 mm triple glazing All panes are annealed float glass ±1,4 mm At least one pane is laminated, patterned or not annealed glass +2,8
mm a If one glass component has a nominal thickness greater than 12 mm in the case of annealed or toughened glass, or 20 mm in the case of laminated glass, the insulating glass unit manufacturer should be consulted. SIST EN 1279-1:2018
System description of insulating glass units The system description shall contain at least: — the IGU description including edge seal design and tolerances; — a list of components including absolute limits for tolerances. Action limits may be included. The component descriptions shall consist of: a) a drawing of a cross section of the sealed edge of the insulating glass unit to scale, with each component numbered (an example of this is given in Figure 3, see also Annex B). When not all components appear in the drawing, additional drawings shall be made; b) a list of the components according to the numbering of the detailed drawing(s), and in accordance with the relevant examples of Annex B; c) a list of inserts not detailed in the drawing; d) a record for each of the components. Each record shall contain: — a reference to the drawing with number and functional name of the component; — the name of supplier(s) or manufacturer(s); — a general description of the material(s) used for the component (e.g. desiccant), followed where appropriate by some more detailed information (e.g. molecular sieve 3 Å); — a drawing with dimensions related to the permeation geometry, when relevant. SIST EN 1279-1:2018
Examples of insulating glass unit systems B.1 General This annex gives examples of IGU systems commonly available. EN 1279-6:2018 gives the factory production control related to each of them. Depending on the system, the insulating glass unit can be either air-filled or gas-filled. B.2 Organic sealed insulating glass units with rigid hollow spacer Figure B.1 shows the principle of organic sealed insulating glass units with rigid hollow spacer, with outer sealant (cold or hot applied).
Key 1
desiccant 4 glass 2
spacer bar 5 inner sealant 3
diffusion openings 6 outer sealant Figure B.1 — Principle of an organic sealed insulating glass units with hollow spacer B.3 Insulating glass units sealed by hot applied flexible spacer incorporating desiccant Figure B.2 shows the principle of IGU with a flexible spacer frame with a hot applied flexible spacer incorporating desiccant. SIST EN 1279-1:2018
Key 1 glass 2 hot applied flexible spacer incorporating desiccant 3 outer sealant without desiccant 4 permeation barrier or spacer Figure B.2 — Examples of insulating glass units sealed by hot applied flexible spacer incorporating desiccant B.4 Insulating glass units with prefabricated flexible spacer Figure B.3 shows the principle of insulating glass units with prefabricated flexible spacer. Flexible spacers with pre-applied inner sealant are covered by this description. SIST EN 1279-1:2018
Key 1 glass 2 flexi
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Die Norm EN 1279-1:2018 bietet umfassende Anforderungen für Wärmedämmverglasungseinheiten, die in verschiedenen Bauanwendungen eingesetzt werden, insbesondere in Fenstern, Türen, Vorhangfassaden sowie in Überdachungen und Trennwänden. Diese Norm definiert die grundlegenden Merkmale der Wärmedämmverglasung und stellt sicher, dass die Produkte den Anforderungen für den vorgesehenen Einsatz entsprechen. Eine der Stärken dieses Dokuments liegt in der klaren Systembeschreibung und den festgelegten Regeln für die Substitution. Die Norm stellt sicher, dass die optischen und visuellen Qualitäten sowie die Maßtoleranzen der Isolierglaseinheiten genau definiert sind, was für die Hersteller und Anwender enorme Vorteile mit sich bringt. Durch die Definition spezifischer Maßtoleranzen wird gewährleistet, dass die Produkte eine gleichbleibende Qualität aufweisen und somit die Bauanforderungen langfristig erfüllen. Die Relevanz der Norm EN 1279-1:2018 zeigt sich auch in ihrem Fokus auf visuelle, energetische, akustische sowie sicherheitstechnische Parameter, die über die Zeit konstant bleiben müssen. Dies ist besonders wichtig für die Verbraucher, da es garantiert, dass die Isoliergläser nicht nur ästhetischen, sondern auch funktionalen Anforderungen gerecht werden. Zusätzlich verdeutlicht die Norm die Notwendigkeit, bestimmte europäische technische Spezifikationen zu berücksichtigen, wenn es keine Schutzmaßnahmen gegen direkte UV-Strahlung oder dauerhafte Scherbelastungen gibt. Das zeigt, dass die Norm nicht isoliert betrachtet werden kann, sondern in einen größeren europäischen Kontext eingeordnet werden muss, um maximale Sicherheit und Qualität zu gewährleisten. Ein weiterer Punkt, der die Norm hervorhebt, ist ihr Ausschluss von künstlerischen Verglasungen und Vakuum-Isolierglas sowie eine klare Anleitung für Glas-Kunststoff-Verbundstoffe. Dies sorgt für eine präzise Anwendung und verhindert Verwechslungen, die zu Qualitätsproblemen führen könnten. Insgesamt bietet die Norm EN 1279-1:2018 eine fundierte Grundlage für die Entwicklung und den Einsatz von Wärmedämmverglasungseinheiten, die sowohl für Hersteller als auch für Bauherren von zentraler Bedeutung ist.
The EN 1279-1:2018 standard provides a comprehensive framework for insulating glass units, ensuring their suitability for various applications, including windows, doors, and curtain walling. The scope of this document is pivotal, as it not only defines the essential requirements for insulating glass units but also emphasizes their performance over time in terms of visual, energetic, acoustic, and safety parameters. This focus on long-term durability makes the standard particularly relevant for manufacturers and architects seeking to meet stringent quality benchmarks while ensuring energy efficiency in building designs. One of the standout strengths of the EN 1279-1:2018 is its meticulous approach to defining system descriptions and establishing clear rules for substitution. These guidelines help maintain consistency and reliability across different manufacturing practices, which is essential for maintaining the integrity of insulating glass units. This aspect of the standard directly supports compliance with European Technical Specifications, especially in applications where exposure to direct ultraviolet radiation or permanent shear load may occur. The explicit call for adherence to additional specifications like EN 15434 and EN 13022-1 showcases the standard’s thoroughness in addressing potential vulnerabilities in specific applications. Furthermore, the distinction made regarding the exclusion of insulating glass units intended for artistic purposes and vacuum insulating glass underscores a purposeful scope, allowing businesses and stakeholders to accurately assess applicability. By clarifying these exclusions, the standard helps prevent misalignment between specifications and end-user expectations. The standard also places importance on the visual quality of the insulating glass units, which is crucial for aesthetic considerations in building designs. The inclusion of dimensional tolerances and optical quality criteria further enhances its practical usability in manufacturing, ensuring that products meet not only functional but also visual standards. Overall, the EN 1279-1:2018 standard is highly relevant for those involved in the design and manufacturing of insulating glass units, providing essential guidance that integrates quality assurance with performance metrics. Its comprehensive scope, clear definitions, and robust set of requirements make it a critical reference for ensuring that insulating glass units meet the demands of modern glazing applications.
La norme EN 1279-1:2018 couvre un aspect crucial de l'industrie du bâtiment, en se concentrant sur les unités de verre isolant. Elle établit des exigences précises pour ces systèmes vitrés qui sont largement utilisés dans les fenêtres, les portes, les murs-rideaux, ainsi que dans les toits et les cloisons. L'un des points forts de cette norme réside dans sa capacité à garantir que les unités de verre isolant répondent aux besoins tant visuels qu'énergétiques, acoustiques et de sécurité au fil du temps, assurant ainsi une satisfaction optimale de l'utilisateur final. La clarté des définitions concernant les unités de verre isolant permet une compréhension uniforme, facilitant ainsi leur conception et leur utilisation. En outre, les règles qu'elle établit pour la description du système et pour la qualité visuelle et optique sont essentielles pour maintenir des standards élevés dans le façonnage et l'intégration des unités dans divers contextes architecturaux. Un autre aspect notable est la mention des spécifications techniques européennes supplémentaires lorsque les unités de verre isolant sont soumises à des conditions particulières, comme l'absence de protection contre les rayons ultra-violet directs. Cela montre que la norme EN 1279-1:2018 ne se contente pas de poser des exigences de base, mais intègre également des considérations de sécurité et de longévité pour les installations spécifiques. Bien que la norme exclue certaines catégories de verre, comme le verre artistique ou le verre à vide, elle inclut des composites verre/plastiques lorsque ceux-ci incluent un composant en verre au contact des scellants. Cela élargit sa portée tout en maintenant des standards rigoureux. Enfin, le lien vers d'autres directives, telles que la Directive Basse Tension pour les produits en verre avec raccordements électriques, souligne la pertinence et la complémentarité de cette norme avec d'autres réglementations réglementaires. Cela contribue à un cadre législatif solide pour les fabricants et les utilisateurs d'unités de verre isolant, renforçant ainsi la fiabilité et la durabilité de ces produits dans le secteur de la construction.
표준 EN 1279-1:2018은 건축에서 사용되는 단열 유리 유닛에 대한 요구사항을 포괄적으로 다루고 있습니다. 이 문서는 단열 유리 유닛이 창문, 문, 커튼 월, 유리 지붕 및 파티션 등 다양한 설치에 적합하도록 설계된 것을 확인할 수 있습니다. 표준의 주요 강점 중 하나는 해당 단열 유리 유닛이 목적으로 요구되는 시각적, 에너지, 음향 및 안전 매개변수의 시간이 지나도 유의미하게 변화하지 않음을 보장하는 평가 기준을 마련하고 있다는 점입니다. 또한, 이 표준은 시스템 설명, 광학 및 시각 품질, 치수 공차에 대한 규칙을 포함하고 있으며, 기존 시스템 설명을 기반으로 한 대체 규칙을 설명합니다. 이러한 포괄적인 접근 방식은 건축이 요구하는 높은 품질의 기준을 유지하는 데 필요한 명확성을 제공합니다. 그러나 이 표준은 예술적 목적의 유리(예: 납 유리 또는 융합 유리)나 진공 단열 유리를 포함하지 않으며, 이는 특정한 용도와 요구 사항에 따라 별도의 지침이 필요함을 의미합니다. 또한 유리/플라스틱 복합재는 접합재와 접촉하는 표면이 유리 성분일 경우 적용 범위에 포함됩니다. 전기 배선이나 연결이 포함된 유리 제품의 경우 저전압 지침과 같은 다른 지침이 적용될 수 있음을 알리는 주석이 포함되어 있습니다. 결론적으로, EN 1279-1:2018 표준은 건축 분야에서 단열 유리 유닛의 일관된 품질과 성능을 보장하는 데 필수적인 문서로, 관련 업계 전반에 걸쳐 커다란 영향력을 미칠 것입니다. 이 표준은 현대 건축의 요구 사항을 반영하며, 단열 유리 유닛의 시각적 및 기능적 품질을 보장하는 데 중추적인 역할을 합니다.
SIST EN 1279-1:2018は、断熱ガラスユニットに関する要件を網羅した重要な標準であり、特に窓、ドア、カーテンウォール、接着ガラスに使用される断熱ガラスユニットの設置において、その用途が明確にされています。この標準は、視覚、エネルギー、音響、安全に関するパラメータが時間の経過とともに大きく変わらないことを確認するための適合性評価を行うことで、断熱ガラスユニットが意図された用途に対して必要な要件を満たしていることを示しています。 本標準の強みは、システムの説明、光学・視覚的品質、寸法公差に関する規則を明示している点にあります。これにより、断熱ガラスユニットの一貫した品質を確保し、業界全体での標準化を促進します。また、特定の条件（例えば、直接紫外線からの保護がない場合や、エッジシールに対する恒常的なせん断荷重がある場合）で追加の欧州技術仕様に従う必要があることを明記しているため、ユーザーが求める性能と安全性が維持されることを保証します。 さらに、断熱ガラスユニットが芸術的用途（鉛ガラスや溶融ガラス）には適用されないことを強調しており、これによりユーザーは自らのニーズに合った適切な規範を選択することができます。この標準により、ガラス/プラスチック複合材についても接着剤との接触面がガラス成分である限り範囲内に含まれることが示されており、幅広い用途に対応可能な点も評価されます。 総じて、SIST EN 1279-1:2018は、断熱ガラスユニットに関する明確なガイドラインを提供し、業界のパフォーマンス基準を向上させるための基盤を築いています。そのため、断熱ガラスユニットの品質と耐久性を確保するうえで、非常に重要な標準として認識されるべきです。
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