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Sika Facade Systems

Solutions for Sealing and Bonding in Facades

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Customer ServiceSika Engineering Silicones Srl.Via L. Einaudi, 6I-20068 Peschiera Borromeo (MI)Phone +39 02 516591 205Fax +39 02 516591 298E-Mail it-ses-admin@it.sika.com

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9001/ EN 29001

since 1986

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ISO 14001

since 1997

Our most current General Sales Conditions shall apply. Pleaseconsult the Product Data Sheet prior to any use and processing.

Sika® Facade SystemsSolutions for Sealing and Bonding in Facades

Technical ServiceSika Services AG Facade Competence CentreTüffenwies 16CH-8048 ZürichPhone +41 56 648 5287Fax +41 56 648 5407E-Mail ch-fcc@ch.sika.comwww.sika.com

Sika is a globally active company in the speciality and construction chemicals business. It has subsidiary manufacturing,sales and technical support facilities in over 70 countries around the world.

Sika is THE global market and technologyleader in waterproofing, sealing, bonding,dampening, strengthening and protection of buildings and civil engineering structures.

Sika has more than 11’000 employeesworldwide and is therefore ideally positionedto support the success of its customers.

Sika – Your Local Partner with a Global Presence

2 | 3Office Building Halenseestrasse, Berlin, Germany

The building envelope design is a central part of the building’s planningprocess. The facade not only providesthe first visual impression of the building but also impacts the climatecontrol of the building and thus theway we feel in the building.

Therefore the design requirements of the facade are manifold and have become increasingly demanding.The standards for energy saving andgain have become more stringent and will strongly influence future de-velopments. The challenge is to devel-op sustainable systems and compo-nents which meet the requirements of modern design and ensure safe and economical facade construction.

Sika continues to develop new prod-ucts and systems for sealing andbonding facades to meet the demandsof systems for the latest technologyknow-how. Sika aims to develop its sealing and bonding technologies to meet the specific market require-ments in close cooperation with leading architects/specifiers and curtain walling companies.

Introduction – The Facade

Profitability because of durability of materials,energy saving,low maintenance cost

Safety for burglary resistance,fire protection,bomb blast resistance

Protection againstheat, cold, wind,rain, humidity, noise

Aesthetics by design freedom,choice of materials,non-staining

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Structural glazing, insulating glass,weathersealingNatural stone facadePanel reinforcing, panel laminationGlass wall grouting, glass-to-glass applications

Ventilated Facade

Panel bonding, water/vapour sealing,chemical anchoringDirect glazing, general bonding,water/vapour sealing

Curtain Wall Facade

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For descriptions of details please see pages 6 – 8.

4 | 5Le Meridien Hotel, Fujerah, UAE

Sika® Solutions for Sealing and Bonding in Facades

A curtain wall facade is a lightweight multifunctional building envelope made of glass (single- or multi-pane units),metal, stone or composite panels. Thesepanels are fixed to a metal subframe,either with pressure plates (capped systems) or bonded with silicone adhesivesealants (structural glazing). This system is mechanically fixed to the main buildingstructure. Curtain wall facades are thestate-of the-art technology for high-risebuildings.

Ventilated facades consist of a wall con-struction, mainly concrete or steel, with an external (or internal) insulating layerand decorative envelope. The air gap between the insulating and decorative surfaces is used for the ventilation of thefacade.

The decorative panels can be made of a variety of material such as metal,composite materials, ceramics, timber etc. and offer the architect significant freedom of design.

Curtain Wall Facade

Ventilated Facade

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Structural Glazing

Sika’s structural glazing adhesive sealants Sikasil® SG-18, SG-20and SG-500 have shown their excellent UV resistance and weather-ability in major projects around the globe.

Sikasil® SG-18Sikasil® SG-20Sikasil® SG-500

Insulating Glass

Argon-filled IG units with the UV resistant silicone edge sealSikasil®IG-25 HM are suitable for structurally glazed facades.For air-filled IG units Sikasil®IG-25 is also applicable.

Sikasil®IG-25Sikasil®IG-25 HM

Weathersealing

Structural glazing systems can have many sealants and adhesiveswhich come into contact with each other and with many othermaterials. They require high-quality products which are compat-ible with all substrates and ancillary products. Therefore Sika notonly supplies the sealants and adhesives but also glazing tapes.

Sikasil® WS-605 SSika® Spacer Tape HD

Curtain Wall Facades

Weathersealing of Natural Stone

Natural stones such as granite, marble, sandstone etc.are naturally occurring and vary in properties, whichmake them very sensitive construction materials.The use of non-staining silicone sealants for weather-sealing of natural stone facades is a must. The com-patibility of the sealant with the stone should be testedin one of Sika’s Facade Competence Centres before the specification and application of the sealant.

Sikasil® WS-355

Fire-resistant Facades

Sika’s fire-resistant weathersealant Sikasil® FS-665 for curtain wall facades has been tested to BS476,part 20 with 4 hours fire resistance. The self-levellingversion Sikasil® FS-665 SL has been optimized forflooring joints applications.Sikasil® FS-665Sikasil® FS-665 SL

Glass Wall Grouting

In total vision glazing (TVG, fin glazing) the glassesshould be fixed to the floor (low punctual stress trans-fer to the glass). With Sika® Icosit® the bottom glass edge is embedded in the floor, and thus results in uniform stress distribution. The PU embedding is protected against weathering by Sikasil® WS siliconesealants.

Sika® Icosit® KC PU SystemsSikasil® WS-605 S

Glass-to-Glass Constructions

Sika offers various silicone sealants for glass-to-glassapplications: Sikasil®GS-621 for sealing of monolithicglass and Sikasil® WS-605 S for sealing of laminatedglass. High-modulus Sikasil® SG-18, SG-20 are usedfor high-stength glass-to-glass bonding.Sikasil® WS-605 SSikasil® GS-621Sikasil® SG-18Sikasil® SG-20

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Panel Reinforcing

Big panels become fashionable in facades. In order to save weight, the panels get thinner and thinner. Tostabilize against fluttering, the panels are stiffenedwith a metal or plastic profile bonded to the back side.

SikaFast®Acrylic AdhesivesSikaPower® Epoxy Hybrid AdhesivesSikasil® SG Silicone AdhesivesSikaBond® PU Adhesives

Panel Lamination

Sika supplies adhesives for the production of sandwichpanels combining many kinds of materials for thermalinsulation in the spandrel sections.

SikaForce® PU Systems

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Bonding Technologies

Structural Glazing and Insulating GlassEdge Sealing Sikasil® SG and Sikasil® IG: high-modulussilicone technology for glass bonding andIG edge sealing.

Panel BondingSikaTack®-Panel System: the high-strengthPU technology for facade panel bonding.

Panel Lamination SikaForce®: PU adhesives for production ofsandwich panels.

Panel Reinforcement (PanelStrengthening)SikaBond®, SikaFast®, SikaPower®, Sikasil®

SG: various products for different bondingtechnologies for an efficient reinforcementof facade panels and claddings.

Fenestration: Direct GlazingSikaFast®, Sikaflex®, Sikasil® WT: variousproducts for structural strengthening of window sashes by direct bonding of IGunits to the sash made of any kind of material.

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Anchoring Technologies

Sika AnchorFix®: the high-strength and fast-curing solution for chemical anchoring.

Sealing Technologies

Joint SealingSikasil® WS : the specialized low-modulussilicones for glass, metals, natural stonesand plastics.

Sikaflex®: the high-end PU and PU-hybridsealants for movement and connectionjoints preferably on porous substrates.

Joint MembranesSika® Membrane Systems: the flexible high-quality membranes for joint sealing in line with the highest requirements ofconstruction physics.

Exhibition Centre, Milan.

The individual pavilions of the Exhibition Centre Nuovo Polo di Fiera Milanoare linked by a glass roof of 1300 m by 30 m.The design of the curvedfree-formed glass roof by Maximiliano Fuksas absorbs the nearby Alps.The mix of glass and alu-minium panels (4300 m2)has been sealed withSikasil® WS weather-sealants on a length of 80 km.

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Ventilated Facades

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Panel Bonding

The SikaTack®-Panel System consists of an adhesive and a pre-fixing tape and can be used in two different ways.

1. On-site bonding (left): An aluminium profile (substructure) is anchored to the concrete wall. The panel is glued to the profile.A double-sided adhesive tape holds the panel during the full vulcanization of the glue.

2. Factory prefabrication (right): An aluminium profile is glued to the panel back side in the factory. The fixing rail is anchored to the wall and is brought into line. The fasteners are adjusted to hold the panel at the fixing profile on the back.

Both technologies provide a great design freedom.

SikaTack®-Panel System (on-site bonding)SikaTack®-Panel System (factory prefabrication)Sika AnchorFix®

Direct Glazing

Direct glazing is an innovative window technology where theglass is directly bonded to the sash. The glass stiffens the sash and allows weight reduction of sash material and mini-mizing the sash width. All loads are uniformly transferred to the sash by replacing the setting blocks by an adhesive appliedon all four sides. This minimizes the risk of glass breakage.

SikaFast® Acrylic Adhesives Sikaflex® PU SystemsSikasil® WT Silicone Adhesives

General Bonding

Sika has developed a wide product range for many bondingapplications.

SikaBond® PU and PU-Hybrid Systems

Waterproofing (In details E and F)

Depending on the climatic conditions both wet sealants(Sikaflex® PU or Sikasil® silicone) or Sika® Membrane Systemscan be used for movement/connection joints and perimetersealing around the window frames. Sika® Membrane Systemsare high quality systems with optimized water/vapour diffusion resistance levels.

Sika® Membrane SystemsSikaflex® Sealants Sikasil® WS-605 S

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Sika® Solutions at a Glance

Sikasil® IG

Sikasil® SG

Sikasil® WS

Sikasil® GS

Sikasil® FS

Sikasil® WT

Sikaflex®

Sika® Membrane Systems

SikaTack®-Panel System

SikaForce®

SikaBond®

SikaFast®

Sika AnchorFix®

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The two transparent office towers with aheight of 126 m and 132 m, designed byHelmut Jahn, are the landmark in theNorth of Munich. The use of Sikasil®IG-25HM as IG secondary seal in the argon-filledinsulating glass units gave a very elegantglass facade complying with the challeng-ing German energy regulations. Both Sika® Membrane Systems and Sikasil®

were used for weathersealing.

Our Performance – yourBenefits

Sika places great importance on interdis-ciplinary cooperation with its partners inthe glass and curtain wall industry, espe-cially in the development of new productsfor sealing and bonding technologies.Thus Sika offers complete ready-to-install solutions for integrated facade systems.

Munich Business Towers

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Technical support with design and dimensioning detailsComprehensive adhesion and compatibility tests with original materialsSupport with performing external testsApplicator training and practical assistance at the Facade Competence Centres and on site Warranty procedures

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Technical Service:Facade Competence Centres

At our Facade Competence Centres we de-velop new products and processing technol-ogies, test sealing and bonding methods.

The specialists at our Facade CompetenceCentres provide individualized project service and support for building projects on all continents – from planning through to execution:

Not only its height of 180 m but also itsfascinating design made the headquartersof the Swiss reinsurance company SwissRe, designed by Sir Norman Foster, a landmark in London. 70’000 m2 of glassand metal in the double skin facade weresealed with 55 km of sealing material,both with Sikasil® SG silicones, Sikaflex® PUand Sika® Membrane.

Swiss Re Headquarters

Sika’s Facade Competence

Highlight Towers, Munich, Germany

Swiss Re Headquarters, London, Great Britain

ING Group Headquarters, Amsterdam, Netherlands

Integration is the key feature of the newcompany headquarters of the Dutch BankING, designed by Meyer and van Schooten.Art, natural materials, plants and light areincorporated into an energy-efficient build-ing. The 10’000 m2 glass skin surrounds the stilt-mounted structure like a secondskin. In the northern facade all glass elements have a four-sided weatherseal.This means that the building is completelyclosed in order to seal out the noise andsmells of the adjacent highway. Sikasil® SGand Sikasil® WS silicones were used inmanifold applications – from structuralsealant glazing to weathersealing to totalvision glazing.

ING Group Headquarters