Bsi bs en 13022 1 2014

BSI Standards PublicationGlass in building — Structural sealant glazing Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multipl

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

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It supersedes BS EN 13022-1:2006+A1:2010 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/520/4, Properties and glazing methods

A list of organizations represented on this committee can beobtained on request to its secretary

This publication does not purport to include all the necessaryprovisions of a contract Users are responsible for its correctapplication

© The British Standards Institution 2014 Published by BSI StandardsLimited 2014

ISBN 978 0 580 82678 8ICS 81.040.20

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2014

Amendments issued since publication

NORME EUROPÉENNE

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 9 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

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref No EN 13022-1:2014 E

Contents Page

Foreword 3

1 Scope 4

2 Normative references 7

3 Symbols, terminology, terms and definitions 8

3.1 Symbols 8

3.2 Terminology 9

3.3 Terms and definitions 10

4 Characteristics of glass products - requirements 12

4.1 Appropriate glass products 12

4.2 Dimensional tolerances 12

4.3 Glass shapes – Curved glass 12

4.4 Corners, notches and holes 13

5 Verification of the suitability of glass products for use in SSG systems when exposed to UV radiation 14

5.1 General 14

5.2 Insulating glass unit (IGU) 14

5.2.1 Situation 1 (see Figure 2 of the Scope) 14

5.2.2 Situation 2 (see Figure 2 of the Scope) 14

5.2.3 Coated glass 15

5.2.4 Possibility to substitute the outer IGU seal – General case 16

5.2.5 Possibility to substitute the outer IGU seal – Case of unsupported glass: Further requirements 16

5.3 Monolithic glass or laminated glass, Situation 3 (see Figure 2) 16

5.4 Assessment of the adhesion between the sealant and the glass 16

5.4.1 Clear float 16

5.4.2 Coated glass 16

5.4.3 Enamelled glass 16

5.4.4 Patterned glass 17

6 Design 17

6.1 Calculation of the thickness of the glass 17

6.2 Calculation of the height of the outer sealant of the insulating glass unit for supported and unsupported glazing 17

6.2.1 Supported insulating glass unit 17

6.3 Calculation of the height of the outer sealant of the insulating glass unit for unsupported glazing 21

6.3.1 Calculation of the height regarding the relevant combined load of the wind, snow and self weight 21

6.3.2 Calculation of the height of the outer seal to bear the permanent shear loading 22

7 Minimum glass thickness 22

7.1 General case 22

7.2 Case of glass with worked edges 23

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

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 façades;

— 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

1 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 1 and three section drawings of an SSG type II system are shown in Figure 2 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 0021) “Structural sealant glazing system”

All glass products are installed and bonded into the support under controlled environmental conditions as described in Clause 5 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

Key

1 retaining device to reduce danger in case of bond failure

2 mechanical self-weight support

3 structural sealant support frame

Figure 1 — Schematic examples of the different types of SSG

NOTE 1 Retaining devices may be required by national regulations

NOTE 2 In case of laminated glass and laminated safety glass, SSGS of types III and IV may be forbidden by national regulation

10 structural seal support frame

11 laminated glass or laminated safety glass or monolithic glass unit

Figure 2 — Scope

NOTE The section drawings above are examples of structural sealant glazing system type II and IV

SITUATION 1

The SSG seal is applied on face 2 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 2

The SSG seal is applied on face 4 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

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 1 – 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

EN ISO 12543 (all parts), Glass in building — Laminated glass and laminated safety glass

3 Symbols, terminology, terms and definitions

3.1 Symbols

c is the height of sealant necessary for structural purposes mm

d width of insulating glass unit air space mm

P relevant combined load for wind, snow and self weight Pa

R distance between structural seal and glass edge mm

T thickness of the thickest glass pane mm

β coefficient depending on the relative thickness of insulating glass panes

Δa maximum difference in altitude between production transport and assembly at site m

NOTE An accurate method of distribution of the load between the two panes is provided in prEN 16612

3.2 Terminology

Key

1 anchorage 8 mechanical self-weight support

2 backer rod 9 weather seal

3 height of the outer seal 10 setting blocks

4 façade framework 11 adhesive spacer

5 finishing material 12 structural seal

6 hermetic seal 13 structural seal adhesion surface

6a (inner seal) 14 structural seal support frame

6b (outer seal) 15 anti-adhesive film

6c outer seal adhesion surface 16 retaining device

Figure 3 — Terminology

NOTE Figure 3 is only included as an aid to explaining the terminology used in this European Standard The components indicated in broken and dotted lines are covered by other technical specifications such as ETAG 002 or standards concerned with curtain wall façades

3.3 Terms and definitions

For the purposes of this document, the following terms and definitions apply

anchorage of the structural seal support frame on the framework

Note 1 to entry: See (1) in Figure 3

3.3.3

backer rod

pre-formed continuous strip that limits the section and height of a fillet of weather sealant

Note 1 to entry: See (2) in Figure 3

3.3.4

hermetic seal bite

dimension of the second barrier of the hermetic seal measured parallel to the glass unit at the panel level

Note 1 to entry: See (3) in Figure 3

3.3.5

façade framework

members to which the structural seal support frame is connected and which transmits the loads to the building

Note 1 to entry: See (4) in Figure 3

Note 1 to entry: In the case of the single seal, the inner seal is the same as the outer seal

Note 2 to entry: See (2) in Figure 2

Note 2 to entry: See (7) in Figure 3

3.3.10

self weight mechanical support

element situated beneath the bottom edge of the glass unit that transmits the weight of the latter to the structural seal support frame

Note 1 to entry: See (8) in Figure 3

3.3.11

weather seal

fillet of sealant or weather fin of adequate cross section constituting a barrier to air and water

Note 1 to entry: See (9) in Figure 3

Note 1 to entry: See (12) in Figure 3 and (5) in Figure 2

3.3.15

structural seal adhesion surface

continuous surface of the glass or structural seal support frame to which the structural sealant bonds

Note 1 to entry: See (13) in Figure 3 and (6) in Figure 2

3.3.16

structural seal support frame

metallic element to which the glass product is bonded

Note 1 to entry: See (14) in Figure 3

3.3.17

anti-adhesive film

film at the interface between two materials to prevent them bonding together

Note 1 to entry: See (15) in Figure 3

3.3.18

retaining device

intended to hold the glass product in place and therefore reduce any danger that may result in the event of a structural seal failure

Note 1 to entry: See (16) in Figure 3

4 Characteristics of glass products - requirements

4.1 Appropriate glass products

This European Standard only allows the use of the following soda lime silicate glasses covered in the following standards:

The tolerances for the different glass products can be found in the appropriate glass standards

Generally, in order to be consistent with the requirements of the SSG systems the dimensional tolerances of the glass products will be tighter than those in the standards These tolerances shall be specified in the contract between the purchaser and the supplier

4.3 Glass shapes – Curved glass

Curved glass shall be considered to be flat for the purposes of calculating the products of the insulating glass unit seals and glass thickness if the height of the glass at the centre of curve is ≤ 1/100 of length of the curved side

4.4 Corners, notches and holes

For annealed glass, corners (Figure 4 a)), notches (Figure 4 b)) and holes (Figure 4 c)) are not considered in this European Standard

Figure 4 — Corner, notch and hole

For toughened and heat strengthened glass, corners (Figure 4 a)), notches (Figure 4 b)) and holes (Figure 4 c)) are described in the following European Standards:

25 mm minimum Figure 5 — Angle of insulating glass units

5 Verification of the suitability of glass products for use in SSG systems when exposed to UV radiation

5.1 General

The conformity of the glass product is determined by its capacity to resist the following stresses and fulfil the requirements regarding mechanical resistance and stability, reaction and resistance to fire, hygiene, health, environment, safety, protection against noise, energy economy and heat retention, durability as a function of the situation and of the type of glass (see Scope)

5.2 Insulating glass unit (IGU)

5.2.1 Situation 1 (see Figure 2 of the Scope)

In Situation 1 the outer seal of the insulating glass unit has no structural seal function:

a) Regarding the IGU itself:

Suitability for use of the IGU is determined in accordance with the EN 1279 series All parts of EN 1279 are applicable, however the requirements in EN 1279-4 are amended as follows

b) Outer seal:

1) The assessment tests of 5.1.3 of EN 1279-4:2002 are amended as follows:

i) exposure to heat: test conditions of 5.1.3.2 of EN 1279-4:2002 are replaced by as defined in 5.4.6 of EN 15434:2006+A1:2010,

ii) exposure to UV: test conditions in 5.1.3.4 of EN 1279-4:2002 are replaced by: exposure to UV test and specification as defined in Annex D and 5.8 of EN 15434:2006+A1:2010 depending on the level of UV exposure expected, or

2) the test methods and specifications of 5.2, 5.3 and 5.4 of EN 15434:2006+A1:2010 are applicable, or 3) a structural sealant can be used for the outer seal of the IGU in Situation 1 Figure 2 provided the structural sealant complies with the relevant technical specification (CE marking)

The test report referred to in Clause 6 of EN 1279-4:2002 is amended accordingly

5.2.2 Situation 2 (see Figure 2 of the Scope)

The outer seal of the insulating glass unit has a structural function and shall satisfy the following:

a) suitability for use of the IGU is determined in accordance with EN 1279;

b) outer seal of the IGU shall satisfy the test methods and specifications given in 5.2, 5.3 and 5.4 of

EN 15434:2006+A1:2010 as required for the CE marking of a structural sealant for IGU;

c) test report referred to in Clause 6 of EN 1279-4:2002 is amended accordingly

5.2.3 Coated glass

5.2.3.1 The adhesion of coatings to glass surfaces or adhesion of coatings to interlayers used for laminating glass products shall be performed in conformity with Annex D of EN 1279-4:2002, but in the case

of the outer seal shall be amended as follows

5.2.3.1.1 Bonding outer seal without structural function

Assessment tests in conformity with Annex D and Clause 5 of EN 1279-4:2002 shall be carried out but amended as follows:

a) Heat exposure test (5.1.3.2 of EN 1279-4:2002) performed in conformity with 5.4.6 of

The test report referred to in Annex D and Clause 6 of EN 1279-4:2002 should be amended accordingly

5.2.3.1.2 Bonding: outer seal with structural function

Assessment tests in conformity with 5.2, 5.3 (only applies if not performed on clear glass) and 5.4 of

EN 15434:2006+A1:2010 shall be carried out

A structural sealant can be used for the outer seal of the IGU in Situation 1 Figure 2 provided the structural sealant has a CE mark

The test report referred to in Annex D and Clause 6 of EN 1279-4:2002 should be amended accordingly

5.2.3.2 Substitution of coated glass when the coating does not require edge deletion

Proceed to follow conformity according to 4.2.3 of EN 1279-4:2002, then carry out assessment tests in accordance with Annex D and Clause 5 amended as follows:

a) heat exposure test (5.1.3.2 of EN 1279-4:2002) performed in conformity with 5.4.6 of