BS EN 13022-1:2014 BSI Standards Publication Glass in building — Structural sealant glazing Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazing BS EN 13022-1:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 13022-1:2014 It supersedes BS EN 13022-1:2006+A1:2010 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee B/520/4, Properties and glazing methods A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 82678 ICS 81.040.20 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2014 Amendments issued since publication Date Text affected BS EN 13022-1:2014 EN 13022-1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM June 2014 ICS 81.040.20 Supersedes EN 13022-1:2006+A1:2010 English Version Glass in building - Structural sealant glazing - Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazing Verre dans la construction - Système de vitrage extérieur collé (VEC) - Partie 1: Produits verriers pour système VEC pour produits monolithiques et produits multiples calés Glas im Bauwesen - Geklebte Verglasungen - Teil 1: Glasprodukte für Structural-Sealant-Glazing (SSG-) Glaskonstruktionen für Einfachverglasungen und Mehrfachverglasungen mit oder ohne Abtragung des Eigengewichtes This European Standard was approved by CEN on February 2014 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 13022-1:2014 E BS EN 13022-1:2014 EN 13022-1:2014 (E) Contents Page Foreword Scope Normative references 3.1 3.2 3.3 Symbols, terminology, terms and definitions .8 Symbols Terminology Terms and definitions 10 4.1 4.2 4.3 4.4 Characteristics of glass products - requirements 12 Appropriate glass products 12 Dimensional tolerances 12 Glass shapes – Curved glass 12 Corners, notches and holes 13 Verification of the suitability of glass products for use in SSG systems when exposed to UV radiation 14 General 14 Insulating glass unit (IGU) 14 Situation (see Figure of the Scope) 14 Situation (see Figure of the Scope) 14 Coated glass 15 Possibility to substitute the outer IGU seal – General case 16 Possibility to substitute the outer IGU seal – Case of unsupported glass: Further requirements 16 Monolithic glass or laminated glass, Situation (see Figure 2) 16 Assessment of the adhesion between the sealant and the glass 16 Clear float 16 Coated glass 16 Enamelled glass 16 Patterned glass 17 5.1 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.3 5.4 5.4.1 5.4.2 5.4.3 5.4.4 6.1 6.2 6.3.2 Design 17 Calculation of the thickness of the glass 17 Calculation of the height of the outer sealant of the insulating glass unit for supported and unsupported glazing 17 Supported insulating glass unit 17 Calculation of the height of the outer sealant of the insulating glass unit for unsupported glazing 21 Calculation of the height regarding the relevant combined load of the wind, snow and self weight 21 Calculation of the height of the outer seal to bear the permanent shear loading 22 7.1 7.2 Minimum glass thickness 22 General case 22 Case of glass with worked edges 23 6.2.1 6.3 6.3.1 Annex A (informative) Assembly recommendations 25 A.1 Setting blocks for monolithic glass, laminated glass and insulating glass units 25 A.2 Water drainage from the system 28 Bibliography 29 BS EN 13022-1:2014 EN 13022-1:2014 (E) Foreword This document (EN 13022-1:2014) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by NBN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2014 and conflicting national standards shall be withdrawn at the latest by December 2014 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document supersedes EN 13022-1:2006+A1:2010 This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association EN 13022-1 is one of a series of interrelated standards dealing with: — glass products for structural sealant glazing systems; — installation of glass products in a structural manner on building faỗades; UV-resistant and structural sealant for use in structural sealant glazing The interrelated parts are: — EN 13022-1: Glass in building — Structural sealant glazing — Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazing — EN 13022-2: Glass in building — Structural sealant glazing — Part 2: Assembly rules — EN 15434: Glass in building — Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals) According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 13022-1:2014 EN 13022-1:2014 (E) Scope This European Standard specifies requirements for the suitability for use of supported and unsupported glass products for use in “Structural Sealant Glazing” (SSG) applications Four schematic drawings of SSG systems are shown in Figure and three section drawings of an SSG type II system are shown in Figure for illustration purposes This European Standard on glass products is considered as a supplement to the requirements specified in the corresponding standards with regard to verifying the suitability for use in SSG systems Only soda lime silicate glasses are taken into consideration in this European Standard Plastic glazing is excluded from the scope of this European Standard Any glass products meeting the requirements of this European Standard are suitable for use in SSG systems as defined in ETAG 002 1) “Structural sealant glazing system” All glass products are installed and bonded into the support under controlled environmental conditions as described in Clause of EN 13022-2:2014 When the outer seal of the insulating glass unit has a structural function and/or is exposed to UV radiation without any protection, only silicone based sealant are permitted in the construction of the unit 1) ETAG: European Technical Approval Guideline BS EN 13022-1:2014 EN 13022-1:2014 (E) Key retaining device to reduce danger in case of bond failure mechanical self-weight support structural sealant support frame Figure — Schematic examples of the different types of SSG BS EN 13022-1:2014 EN 13022-1:2014 (E) NOTE Retaining devices may be required by national regulations NOTE In case of laminated glass and laminated safety glass, SSGS of types III and IV may be forbidden by national regulation Situation Situation Situation Key glass unit inner seal outer seal finishing material structural seal structural seal adhesion surface weather seal setting block adhesive spacer 10 structural seal support frame 11 laminated glass or laminated safety glass or monolithic glass unit Figure — Scope NOTE The section drawings above are examples of structural sealant glazing system type II and IV BS EN 13022-1:2014 EN 13022-1:2014 (E) SITUATION The SSG seal is applied on face of the insulating glass unit The outer IGU sealant has no structural function and therefore only contributes to the resistance of the unit against the ingress of water (vapour and liquid) and air Depending on the type and construction of the IGU sealant any leakage of gas from the unit will be minimized The SSG seal need to have adhesion to the glass and steel surfaces to withstand the mechanical stresses that results from the exposure of the IGU to the climatic elements and in particular the effects of solar radiation SITUATION The SSG seal is applied on face of the insulating glass unit The outer IGU sealant has a structural function as well as having to maintain the integrity and performance of the IGU SITUATION The SSG seal is applied on face of the laminated glass or laminated safety glass or monolithic glass unit The sealant has a structural function and any loads applied to the glass will be transferred to it NOTE In case of laminated glass and laminated safety glass, SSG of types III and IV may be forbidden by national regulation Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 572-2, Glass in building — Basic soda lime silicate glass products — Part 2: Float 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 1096 (all parts), Glass in building — Coated glass EN 1279 (all parts), Glass in building — Insulating glass units EN 1863 (all parts), Glass in building — Heat strengthened soda lime silicate glass EN 1991-1-1, Eurocode 1: Actions on structures — Part 1-1: General actions — Densities, self-weight, imposed loads for buildings EN 1991-1-3, Eurocode – Actions on structures — Part 1-3: General actions — Snow loads EN 1991-1-4, Eurocode 1: Actions on structures — Part 1-4: General actions — Wind actions EN 12150 (all parts), Glass in building — Thermally toughened soda lime silicate safety glass EN 14179 (all parts), Glass in building — Heat soaked thermally toughened soda lime silicate safety glass EN 15434:2006+A1:2010, Glass in building — Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals) prEN 16612, Glass in building — Determination of the load resistance of glass panes by calculation and testing BS EN 13022-1:2014 EN 13022-1:2014 (E) EN ISO 12543 (all parts), Glass in building — Laminated glass and laminated safety glass Symbols, terminology, terms and definitions 3.1 Symbols a minimum dimension of glass m b maximum dimension of glass m c is the height of sealant necessary for structural purposes mm d width of insulating glass unit air space mm h height of the outer seal barrier mm P relevant combined load for wind, snow and self weight Pa R distance between structural seal and glass edge mm S glass area m T thickness of the thickest glass pane mm σd design stress of the sealant MPa β coefficient depending on the relative thickness of insulating glass panes Δa maximum difference in altitude between production transport and assembly at site NOTE An accurate method of distribution of the load between the two panes is provided in prEN 16612 m BS EN 13022-1:2014 EN 13022-1:2014 (E) Figure — Height of the outer seal, of the insulating glass unit, with a structural function Key t1 18 is the minimal glass thickness of the outermost component of an IGU in mm BS EN 13022-1:2014 EN 13022-1:2014 (E) t2 is the minimal glass thickness of the innermost component of an IGU in mm Figure — Coefficient β as a function of the relative thickness of the glass components 6.2.1.2 Stepped insulating glass units The step R between both glass components is limited to: R ≤ T (see Figure 8) The calculation of the height “h” of the outer seal of an insulating glass unit shall vary according to whether the outermost or innermost glass of the stepped IGU is used to structurally bond the unit Position 1: Bonding to the outermost component As the outermost glass is designed to withstand all climatic loads, the height “h” of the second seal barrier of an insulating glass unit will be identical to that of an insulating glass unit installed in a rebate, with a minimum height h = mm (see Figure 8) h0 = e0 (3) where e0 is the height of sealant used to pass EN 1279–2 in mm 19 BS EN 13022-1:2014 EN 13022-1:2014 (E) Key “ h0”of the outer seal, of an insulating glass, without structural function but UV- resistant finishing material setting block structural seal possible weather seal backer rod Figure — Bonding to the outermost component Position 2: Bonding to the innermost component The height “h0” of the outer seal of an insulating glass unit with structural function is calculated in accordance with 6.2.1 (see Figure 9) 20 BS EN 13022-1:2014 EN 13022-1:2014 (E) Key “ h0” of the outer seal with structural function and UV-resistant of an SSG insulating glass unit structural seal setting block finishing seal possible weather seal backer rod Figure — Bonding to the innermost component 6.3 Calculation of the height of the outer sealant of the insulating glass unit for unsupported glazing 6.3.1 Calculation of the height regarding the relevant combined load of the wind, snow and self weight 6.3.1.1 Outer seal with structural function See 6.2.1 6.3.1.2 Outer seal w/o structural function See 6.2.1.2 Position 21 BS EN 13022-1:2014 EN 13022-1:2014 (E) 6.3.2 Calculation of the height of the outer seal to bear the permanent shear loading The outer seal is considered to be supported along the length, L, of the glass pane hu ≥ Pu ⋅ Γ∞ ⋅ L (4) where hu is the height of the outer seal of the unsupported insulating glass unit in mm; Pu is the weight of the unsupported insulating glass unit; Γ∞ is the shear design stress value declared by the sealant manufacturer See 5.3.8.2, “Creep factor: definition and requirement” of EN 15434:2006+A1:2010; L is the length of the outer seal taken in account: short (a) or long (b) side of the glass pane In addition when the outer seal has a structural function it is always necessary to verify that: hu ≥ 0,5 ⋅ P ⋅ a ⋅ T∞ ⋅ L (5) hu as calculated in 6.2.1 Minimum glass thickness 7.1 General case The nominal minimum glass thickness shall never be less than mm and shall always be supported on setting blocks for at least half of its thickness When an external weather seal is used for SSG, the minimum thickness for the weather seal shall be mm If the glass thickness is increased, the setting block width shall be increased to support at least half the thickness of the glass but at the same time shall not reduce the weather seal thickness to below mm (see Figure 10) 22 BS EN 13022-1:2014 EN 13022-1:2014 (E) Key setting block weather seal mechanical self-weight support Figure 10 — Minimum glass thickness when setting blocks extend to half the thickness 7.2 Case of glass with worked edges The edges of the glass shall be as near to normal to the faces as is practical The maximum edge arris dimension for the glass shall be 1,5 mm (see Figure 11) 23 BS EN 13022-1:2014 EN 13022-1:2014 (E) Key edge arris setting block weather seal mechanical self-weight support Figure 11 — Glass with worked edge - Minimum glass thickness when the setting blocks extend to half the thickness 24 BS EN 13022-1:2014 EN 13022-1:2014 (E) Annex A (informative) Assembly recommendations A.1 Setting blocks for monolithic glass, laminated glass and insulating glass units Two “setting blocks” are positioned under the bottom edge of the glass unit They are used to transfer the selfweight of the glass to the structural seal support frame A.1.1 General case A.1.1.1 Transverse positioning of the setting blocks A.1.1.1.1 Setting block extending over the full thickness of the glass In the absence of a weather seal in front of the setting block, the latter can extend over the full thickness of the glass See Figure A.1 Otherwise, the requirements of A.1.1.1.2 are applicable Key setting bock Figure A.1 — Transverse position of the setting block in the absence of a weather seal A.1.1.1.2 Setting block extending to half of the glass thickness It is permitted for monolithic glass, for the outermost pane of an insulating glass unit and for laminated glass to be only supported over half of its thickness provided: a) width of the effective support for the glass unit from the setting block is at least mm, which implies a minimum nominal thickness of mm for the outermost glass pane (see Figure A.2 to allow a minimum of mm for the weather seal); 25 BS EN 13022-1:2014 EN 13022-1:2014 (E) b) length of the setting block is doubled to take into account the resulting increase in compressive stress due to increasing glass weight Monolithic glasses Laminated glasses Insulating glass units Key setting block Figure A.2 — Transverse position of the setting block A.1.1.1.3 Setting blocks for stepped insulating glass units The previous rules for setting blocks described above also apply in this case The use of adjustable setting blocks should take these rules in to account See Figure A.3 26 BS EN 13022-1:2014 EN 13022-1:2014 (E) Key setting block adjustable setting block Figure A.3 — Positioning of setting blocks in the case of stepped insulating glass units A.1.1.2 Longitudinal positioning of setting blocks The longitudinal positioning of setting blocks should be in conformity with prEN 12488:2013, 5.5.2.2 27 BS EN 13022-1:2014 EN 13022-1:2014 (E) A.1.1.3 Length of setting blocks The length of the setting block should be in conformity with prEN 12488:2013, 5.5.2.2 A.1.2 Supporting the self-weight of a monolithic glass For a monolithic glass, it is permitted to use the weather seal as a setting block as long as its mechanical properties and intrinsic durability are equivalent to those of the structural seal (see Figure A.4) Figure A.4 — Setting block for monolithic glasses The weather seal should have attained its nominal strength characteristics before being subjected to loading A.2 Water drainage from the system In addition to the normal practice of drainage, the SSG system should be designed to keep the structural sealant free from stagnant water The faỗade should be designed to prevent water from collecting in the vicinity of the structural bond 28 BS EN 13022-1:2014 EN 13022-1:2014 (E) Bibliography [1] ETAG 002 Edition 2003 Guideline for European Technical Approval for “Structural Sealant Glazing Systems (SSGS)” Part1: Supported and Unsupported Systems [2] EN 572-1, Glass in building — Basic soda lime silicate glass products — Part 1: Definitions and general physical and mechanical properties [3] EN 13022-2:2014, Glass in building — Structural sealant glazing — Part 2: Assembly rules [4] prEN 12488:2013, Glass in buildings — Glazing recommendations — Assembly principles for vertical and sloping glazing 29 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British 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