www.foamglas.ae

Insulation Systemsfor Flat Roof

Contents

Compact Roof – a promising future 4

Living spaces on the roof 7

Principal types of roof systems 8

Compact Roof, with limited access subject to foot traffic 9

Compact Roof, accessible to foot traffic 14

Green Compact Roof 20

Compact roof for Car Park decks 22

Standard Compact Roof (au natural) – with two-layer waterproofing 26

Roof structures covering heated and cooled rooms 27

Types of usage and construction layout 31

Economy, a win-win situation 35

Preventive fire protection 37

Excellent ecological profile 39

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Compact roof – a promising future

The roof probably is the most important element of theouter skin of a building to provide protection againstweathering. Owners and specifiers alike demand a life-time of high performance. This means: The roof – in par-ticular the flat roof – should provide protection againstcold, heat and rain for the entire service life of the build-ing. This means a roof must last for decades and for gen-erations of owners. It’s clear: Flat roofs have a promisingfuture. The right roof solution ensures lifetime perform-ance without degradation. The optimum system remainseffective in the most demanding situations; it meets aesthetic, financial and environmental requirements.Compact Roof systems – using the inherent qualities ofFOAMGLAS® cellular glass insulation – are ideal for themost demanding roof situations.

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1 Museum of Islamic Art, Doha, Qatar.

2 CSS Insurance Company,Lucerne, Switzerland.

3 Voith centre of competence,Technopark Dubai.

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Proven across the world fordecades

In the beginning of the 20th centuryavant-garde architects in Europe gottheir teeth into new building designusing the flat roof. The renownedarchitect Le Corbusier was one of itsmost reputable advocates. In the fiftiesthis roof architecture became widelyaccepted and there are flat roof con-structions performing without failureeven today – many include FOAMGLAS®

Compact Roofs. An average lifetime of40–50 years can be achieved.

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The excellent condition of the oldestFOAMGLAS® Compact Roofs – accord-ing to experts – supports the conclusionthat FOAMGLAS® roofs will be effectivefor the next half century.

Unique system integrity – longterm weatherproofing

A flat roof has undeniable advantagesand it offers a new dimension in per-formance and economy. It extends notonly the cubical content but also offersversatility of use for the roof area itself.Choosing a FOAMGLAS® Compact Roofassures best craftsmanship and safeperformance for the long-term; itreduces maintenance and replacementcosts and plays akey part in savingenergy and protecting the environ-ment. No other system can claim simi-lar application possibilities – coveringterraces, rooftop gardens, non-accessi-ble or accessible roofs (e. g. parkingdecks and service decks).

The perfect system

FOAMGLAS® thermal insulation requiresonly a few components to create theCompact Roof: an exceptionally robustand rainproof flat roof construction.Cellular glass slabs are bonded withhot bitumen on to the structural deck.The slabs are pushed into the adhesiveand closely butted, staggered and thejoints filled with bitumen to achieve acompact insulation layer. The water-proofing is then fully adhered to theinsulation surface using hot bitumen.In the FOAMGLAS® Compact Roof alllayers are perfectly bonded to eachother. Water ingress into the roof andinterstitial moisture can be prevented

as the insulation itself creates a water-proof layer. FOAMGLAS® flat roofmeans double the security and lowmaintenance demands.

Design and accurate installationmethod are the key to the outstandingdurability of the FOAMGLAS® CompactRoof. Even if the weatherproofing lay-er becomes damaged, moisture willnot spread across the roof, the insula-tion provides added protection. Anyspecified slope for flat roofs can beachieved by using the FOAMGLAS®

Tapered Roof (a computerized cut-to-fall system) that ensures effectivedrainage and full thermal protection.

Physical properties

Due to its combination of unique prop-erties, FOAMGLAS® is also called “Safetyinsulation”. It is unrivalled in perform-ance. Manufactured from crushed glassand carbon, it forms closed glasscells – containing an inert gas –, whichprovide excellent thermal effective-ness. As a high-density insulation theproduct shows good performance inairborne sound reduction and heatprotection in summer.

Structure Compact Roof

1 Structural deck (for instance:reinforced concrete)

2 Bituminous primer coat3 FOAMGLAS® insulation slabs

(if required: TAPERED RoofSystem)

4 Two-layer bituminouswaterproofing

5 Separating /protection layer6 Finish layer

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4 UBS Bank, Suglio, Switzerland.

5 UEFA Headquarters, Nyon,Switzerland.

6 Mercedes Benz Arena, Stuttgart, Germany.

FOAMGLAS® is totally impervious towater and vapor, it will not absorbwater. An additional vapor barrier isnot required, as the all glass closed cellinsulation fulfills the function to keepmoisture out. FOAMGLAS® possesseshigh compressive strength and is freefrom deformation in the long-term.Further qualities of the glass materialare: non-combustibility and dimensionalstability (no shrinkage, no swelling, nowarping); it is rot, insect, vermin andacid proof. FOAMGLAS® is an environ-mentally sound product and certifiedto standards of health and indoor airquality in buildings.

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1 Waterproof FOAMGLAS® insulation is waterproof because it consists of pure glass. Advantage: It will never absorb any moisture, so it remains dimensionally stable andmaintains R-value for life.

2 Pest resistant FOAMGLAS® insulation is pest-proof because it is inorganic. It is also resistant tomold and mildew. Advantage: It can be used below grade without fear of infestation orabsorption.

3 High compressive strength FOAMGLAS® insulation has an extraordinarily high compressivestrength without deformation under load due to its unique cell geometry. Advantage: It canbe used as a load-bearing thermal insulation without risk on roofs, decks, and plazas, and forbelow foundations.

4 Non-combustible FOAMGLAS® insulation will not burn because it consists of pure glass(ASTM E 136). It does not contain any blowing agents or flame retardants. Fire behavior:Classification according to ASTM E 84, smoke development and flame spread – zero.Advantage: Storage and processing not hazardous. No propagation of flames in the event offire (chimney effect) in ventilation space.

5 Vapour-tight FOAMGLAS® insulation is air- and vapour-tight because it consists of 100%closed glass cells. Advantage: It is also a vapour barrier, so you can eliminate a layer of theassembly. R-value remains constant over time. no thermal aging. There is no chance off-gassingor thermal aging. It can be used as a radon barrier below grade.

6 Dimensionally stable FOAMGLAS® insulation has a thermal coefficient of expansion similar tothat of concrete and steel, meaning there is very little movement differential. Advantage: Itwill not swell, shrink, expand or contract. Using FOAMGLAS® can improve longevity of the roofmembrane.

7 Acid and chemical resistant FOAMGLAS® insulation is resistant to organic solvents and acidsbecause it consists of pure glass. Advantage: No destruction of the insulation by aggressivemediums and atmospheres.

8 Easy to cut FOAMGLAS® insulation is easy to work with because it consists of thin-walledglass cells. Advantage: It can be cut to any desired measurement using a simple handsaw.

9 Ecological FOAMGLAS® insulation is free of environmentally damaging flame retardants andblowing agents and offers a low embodied energy compared to polymer-based insulationmaterials. Advantage: After generations of use it can be recycled as filler in landscaping orthermally insulating granulate. FOAMGLAS® can help meet your LEED and Living Buildingchallenges.

FOAMGLAS® insulation: unrivalled performance

7 Hamad International Airport, Doha, Qatar (former project name: New Doha Interna-tional Airport), FOAMGLAS®

TAPERED ROOF insulation on steel deck.

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Outdoor "living space"

In "Five Principles for New Architecture"Le Corbusier stipulated the creation ofgreen areas with proud vegetation onotherwise void flat roofs in order tocreate natural spaces in dense urbanareas for the improvement of ambientconditions. He described the terrace or

green roof as the "zone of preference"in the house. And indeed, terrace roofsas an outdoor living space have a greatattractiveness. The rooftop is an idealplatform for a magnificent view overthe environment. And the creation ofgreen areas adds greatly to the eco -logical profile of the building andimproves the quality of living for theowner. As the design and constructionof a green roof or terrace is a verydemanding project, it is essential toconsider proven roof systems based onFOAMGLAS®, which enable architect’sschemes to be realized.

1 Bourgoin Jaillieu District Office, France.

2 Sport court as roof of FederalSchool, Frauenfeld, Switzer -land.

3 Flat roof of a mosque, KSA.

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Living spaces on the roof

Contemporary flat roofs offer wide versatility in designand usage. The roof landscape possibilities are limitedonly by your imagination. FOAMGLAS® Compact Roofoffers a wide range of building system solutions for themost demanding situations. Designed with heavy protec-tion (roofing gravel), as a terrace or green roof, as carpark deck or as an industrial roof on steel deck: there is aFOAMGLAS® solution for every type of usage and forevery roof layout.

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Principal types of roof systems

Compact Roof with limited accessibility Compact Roof with heavy protectionThe Compact Roof with limited access subject to foot trafficis a flat roof, which is only accessed for maintenance.Washed roofing gravel is used as heavy protection againstmechanical impact and UV-attack. This roof layout is regu-larly found on industrial roofs with steel decking.

Compact Roof accessible to foot trafficTerrace roof with pavement areaFlat roofs are frequently used as extended outdoor livingrooms (terraces). Therefore the trend towards a wide varietyof aesthetic tiles and paving stones or wearing courses isincreasing. The range of products is wide: concrete pave-ments, tiles, cast stone, natural stone, boardwalk, play-ground flooring, court surfaces and others.

Green Compact RoofMoisture conditions in green roofsGreen roof constructions have positive effects for the envi-ronment and the microclimate. The plants keep the air freshand raise the level of humidity. They reduce fine dust pollutionand traffic noise. Green areas on the roof reduce the rain-water load on the urban sewer systems by naturally storingthe water. They protect the roof structure from thermalshock and transform the roof surface into a recreational area.Dependent on type, height and care requirements of the plantsan extensive or intensive greening system can be used.

Compact Roof, trafficked/parking decksTraffic accessed car park decksGreater mobility and the need for individual transport char-acterize the spirit of our times. It is obvious that traffic den-sity is also increasing ‘at rest’ and requires flat roofs of manybuilding developments to be used as parking decks. Thisalso means that parking spaces should structurally bedesigned to accomodate delivery, fire and rescue services.Dependent on load assumptions and load distribution slabs,road surfaces in granolithic concrete, asphalt, interlockingpavers or timber paving are possible.

Compact RoofStandard Compact Roof (au naturel) – with two-layerwaterproofingFor buildings without heavy protection layers or foot trafficand requiring slight weight, a simple waterproofed roof isthe perfect solution. However the roof still needs to suffi-ciently resist wind forces. The wind loads should safely betransmitted to the building’s structure. In the standardFOAMGLAS® Compact Roof this is achieved by bonding alllayers to each other. The Standard Compact Roof on steeldeck is ideal for lightweight industrial roofing.

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Client Voith Middle East FZLocation Technopark DubaiConsultant G.E.C. German Engineering Consultants, DubaiBuilt 2010

FOAMGLAS®

flat roof onconcrete deck

Voith centre of competence, Dubai

Voith is following the philosophy ofsustainability and quality and sets stan-dards in the markets energy, oil & gas,paper, raw materials and transporta-tion & automotive. Founded in 1867,Voith employs almost 40 000 peopleand operates in about 50 countries. Asa "Centre of Competence", Voith MiddleEast FZE supports and services itscusto mers within its region with pro-fessional sales and service engineers.The newly opened subsidiary in Dubaiis following a 2-year construction peri-od and spans an area covering 12 000square metres. Following their ownphilosophy of quality and sustainabilityVoith decided for the FOAMGLAS®

compact roof in the new building.FOAMGLAS® thermal insulation is wellknown for the top quality and longterm performance. Applied fully bond-ed in hot bitumen und filled joints nowater infiltration is possible. Instead ofthe used sloping screed PittsburghCorning is offering the TRS TaperedRoof System with already includedslope which will come prefabricated to

the jobsite. FOAMGLAS® is most eco-logical insulation with 60 % recyclingglass and using only renewable energyin the production.

Top quality flat rooffor a top company!www.foamglas.ae

Build-up1 Concrete roof deck2 Foam concrete for sloping

(can be included inFOAMGLAS®)

3 Primer4 FOAMGLAS® slabs fully

bonded with hot bitumen5 Two layers of bitumen

waterproofing membranes6 Separation / protection layer7 Gravel

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Owner MubadalaArchitect Aedas / HDRBuilt 2011-2012FOAMGLAS® application Inverted roof; FOAMGLAS® T4+ TAPERED; 280 mm thickon average, loose laid, single ply membrane (system for hot countries), 8 271 m2

Finish layer Raised prefab tiles

Cleveland Clinic, Abu Dhabi – UAE

Cleveland Clinic Abu Dhabi is part ofAl Suwwa Island and owned byMubadala. CCAD has the objective ofbringing world-class healthcare to theregion and will be organized into thefive institutes of Digestive Disease, Eye,Heart and Vascular, Neurological, andRespiratory and Critical Care.

FOAMGLAS® is used as thermalinsulation on the flat roof. It’s neverdegrading properties, combined withhighest ecological standard, was onereason for the consultant to go withthe world leader in cellular glassinsulation. Additionally the choice is backed bythe high compressive strength whichenables any terrace build-up withoutthermal bridges and the ability toinclude the slope into the thermalinsulation.

FOAMGLAS® is the decision for sustai-nability in regards to ecology andeconomy.

Sustainable in ecologyand economywww.foamglas.ae

Roof structure 1 Concrete roof deck2 Single ply waterproofing

membrane3 FOAMGLAS® T4+,

TAPERED ROOF, double layerloose laid, average thickness 280 mm

4 Protection layer / geotextile5 Single pedestal6 Prefab tiles

Flat roof,terraces

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Architect I. M. PeiBuilt 2007FOAMGLAS® application on flat roof. Total area of FOAMGLAS® applied for flatroof and facade behind stone cladding 22 000 m2.

Flat roof,terraces

Museum of Islamic Art, Doha-Qatar

The Museum of Islamic Art is situatedon the southern part of Doha’sseafront on a manmade island about60 meters off the coast of Doha.Terraces and other roofs with peopletraffic require a stable undergroundstone tiles to avoid any deformation orcracks of the finish. FOAMGLAS® cancarry the highest load without beingflexible. The load can be placed on topof the insulation without any thermal

bridges. Where thermal efficiency needsto be combined with load bearingcapacity, FOAMGLAS® cellular glass isthe key player.

High load bearingcapacity combinedwith highest rigidityenable the perfectdetailwww.foamglas.ae

Roof structure1 Concrete roof deck2 Primer coat3 FOAMGLAS® slabs or4 FOAMGLAS® TAPERED ROOF

slabs, laid in hot bitumen5 Two layers of bitumen

waterproofing membranes6 Separation / protection layer7 Chippings or gravel8 Interlocking paving stones9 Support pads

10 Paving

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Architects Oliver Schwarz Architekten ETH / SIA / BSA, ZurichBuilt 1996FOAMGLAS® application Roof insulation, about 850 m2 type T4+, 120 / 80 mm thick, in hot bitumenFinish layer Boardwalk in hardwood

Compact roof,accessible tofoot traffic

Stepped apartment buildings, Meilen, Switzerland

An exclusive residence with wonderfulviews across Lake Zurich is the perfectsetting for the stepped apartment build-ings with surrounding terraces. Thesespacious accessible terraces, which formthe roof of the lower apartments,required a high performance insulationsolution: the FOAMGLAS® CompactRoof. The robust and deformation-freeinsulation is designed to ensure a rain-proof construction for generations tocome. Due to its outstanding physical

qualities, FOAMGLAS® allows for asimple roof structure needing just afew basic components. The system isdesigned to eliminate the risks ofwater ingress and leakage.

The insulation systemwith superiorperformance minimizesmaintenance andrefurbishmentwww.foamglas.ae

Terrace roof structure1 Concrete decking2 Bituminous primer coat3 Emergency waterproofing

(basic protection during construction)

4 FOAMGLAS® T4+ slabs in hot bitumen, 120 mm thick

5 Two-layer bitumen roofingsheets

6 Playground flooring screed(Barfo screed)

7 Boardwalk8 HEA-bearer9 Angle bar

10 FOAMGLAS® edge element

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Architect Rafael Moneo, MadridRefurbishment 2010 FOAMGLAS® application Roof insulation, about 800 m2 type T4+ Tappered, 50 to 220 mm, bonded in hot bitumenFinish layer Granite slabsBuilding Contractor UTE Dragados Tecsa Atocha Ampliación Complejo Fase IProject Management ADIF

Compact roof,accessible tofoot traffic

Atocha Station, Madrid, Spain

Atocha Station was inaugurated in 1851under the name of "Mediodia Station",and was the first railway station atMadrid. This station was renewed aftera fire under the direction of Alberto dePalacio, colleague of Gustav Eiffel, andthe works took 4 years. The structure ofthe roof was built in Belgium with DeDion beams and is the more importantelement of "Atocha Station". Between1985 and 1992 the refurbishment worksintended to increase the passenger’s

capacity of the station and were leadedby architect Rafael Moneo. Those worksand the works finished in 2010 havejoint several stations in one: local trains,medium and High range trains (includingthe high speed AVE), buses, metro anda Parking. The old station was con -verted in a commercial mall including atropical garden. The Works that finishedin 2011 allows the new connection byhigh speed with Valencia renewing the"Puerta de Atocha" terminal.

EcologicallyRecommendedbuilding material www.foamglas.ae

Build-up1 Concrete support2 Bituminous primer ± 0,3 kg/m2

3 FOAMGLAS® TAPERED READYBLOCK T4+ slabs fullyadhered with hot bitumen ± 4 – 5 kg /m2

4 Waterproofing membrane (1ste layer a 2nd layer)

5 Geotextile membrane6 Mortar layer7 Granite slabs

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Client Mubadala Development CompanyConsultant HDP Overseas Limited, HDR Location Abu Dhabi, UAEBuilt 2011

FOAMGLAS®

TAPERED for all flat roofsand terraces

Arzanah Medical Complex, Abu Dhabi

Just a few yards from the national soccerstadium, the Arzanah Sports MedicalCenter is prominently located within anew mixed-use community in Abu Dhabi,UAE. The project set out to design asustainable building which respondedto this very public site while balancingthe need for a calming, healing envi-ronment and a facility organized toprovide an integrated multi-disciplinaryhealthcare facility to serve the commu-nity and region. The new LEED Golddesigned, 78-bed medical centre willform part of the US$6 billion Arzanahdevelopment near Zayed Stadium onAbu Dhabi Island. As thermal insulationthe consultant came to the decision touse FOAMGLAS® cellular glass insulationfor roof and some wall application.FOAMGLAS® is produced by PittsburghCorning and free of any harmful blow-ing agent. It’s well known for theextreme long durability and the highestresistance to any kind of moisture. Dueto the 60 % recycling glass contentand use of only renewable energy inthe production FOAMGLAS® gets the

Highest durability andecology provides bestsustainabliltywww.foamglas.ae

Build-up1 Concrete roof deck2 Primer coat3 FOAMGLAS® TAPERED slabs

(160 ~ 240 mm), laid in hotbitumen

4 Two layers of bitumen waterproofing membranes

5 Separation / protection layer6 Gravel7 Paving

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highest credits in all environment rat-ings and is supporting with LEED andEstidama credits. The high compressivestrength without creeping and deform-ing makes it to the perfect solutionespecially in roof areas with gardenand terraces.

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Architects Bernard Tschumi, Paris, New York – Michael Photiadis, Athens Built 2004-2007Thermal insulation FOAMGLAS® Compact Roof Tapered Roof System (TRS), average thickness 116 mm, 2700 m2

Accessible concrete deck, FOAMGLAS® slabs, 50 mm thick, 1903 m2

Roof finish Marble slabs on adjustable BUZON® pedestals

Compact roof

New Acropolis Museum, Athens, Greece

A project much spoken of has beenfinalized as a building which has be-come internationally famous for theGreek classical treasures it is exhibit-ing. The designers were consistent totheir initial main concern for solutionsthat would combine the integration ofthe site’s excavations, the use of natu-ral light as well as the balance bet-ween the Museum and the Acropolismonument.On the accessible concrete deck of

level 2, FOAMGLAS® slabs have beenused. The coverage consists of marbleslabs placed on adjustable pedestals.With unique technical characteristics –dimensional stability without deforma-tion, high pressure resistance, imper-meability to water, water vapor andlongevity – FOAMGLAS® has met theextremely high demands of the con-struction contributing at the same timeto the ‘environmental character’ of theNew Museum.

Ecologicallyrecommendedinsulation material www.foamglas.ae

Build-up 1 Concrete deck2 Primer coat3 FOAMGLAS® slabs,

in hot bitumen4 Two layers of bitumen

waterproofing membranes, with polyester reinforcement

5 Adjustable support pads6 Marble slabs

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Architect Tilla Theus und Partner, ZurichBuilt 2006FOAMGLAS® application Main building, roof insulation: about 3470 m2 typeT4+ slabs in hot bitumen, 160 mm thick. Cloakroom building, roof insulation:about 1670 m2 type T4+ slabs in hot bitumen, 2 layers. Tapered Roof System(cut-to-fall slabs), average thickness: 90 / 190 / 290 mmFinish layers Extensive greening system

Green compact roof

The Home of Fifa, Zurich, Switzerland

sion" building. By use of the mostenergy efficient technologies it can beoperated without fossil energy sources.A key element of this sustainable ener-gy concept is the use of FOAMGLAS®

thermal insulation. Cellular glass insu-lation is an ecological building productthat provides important energy-savings. It is made from recycled glassusing renewable energy sources. Lastbut not least, the Compact Roof is avery durable system, which is the bestbargain for the environment.

Flat roof constructionwith the best scoresfor economic and ecologicalperformanceswww.foamglas.ae

Roof structure1 Concrete decking2 Bituminous primer coat3 Emergency waterproofing

(basic protection during construction)

4 FOAMGLAS® T4+ slabs in hotbitumen, 160–200 mm thick,and angle fillets

5 Bitumen roofing sheets, 2 layers

6 Protection layer PP-nonwoven800 g / m2

7 Drainage gravel 8/168 Filter layer9 Extensive roofing system

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When building the new "Home ofFifa", the headquarters of the world’sfootball/soccer governing body, maxi-mum performance was required at alllevels. The building needed being con-structed in a record time and ‘fair play’was required in all environmental mat-ters. New ideas were demanded fordecorative art on the building to refer-ence the world of football. The Fifaheadquarters is a so-called "zero emis-

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Art director Andre Heller Architect Mag. Carmen Wiederin and Propeller Z, ViennaIng. Georg Malojer, Project Management GmbH & Co, InnsbruckBuilt 1995 / 2003 / 2007FOAMGLAS® application Roof insulation, about 5200 m2 type T4+ slabs in hot bitumen, 100 mm thickRoof finish Intensive greening system

Green compact roof

Swarovski Group, Wattens, Austria

As with the first building of SwarovskiCrystal Worlds, FOAMGLAS® insulationsystems were chosen for the extension"Sequel of Fairy Tales". "CrystalWorlds" – an underground building –was designed with a most demandingroof structure. A critical concern wasreplacement and repair work on greenroofs of that scale and design couldpossibly require investment and shutdown the enterprise. Therefore, the

principal selection criteria for thermalinsulation was efficient, totally weather -proof, failure-free roof system thatwould last for decades. The high com-pressive strength of the insulation wasan additional reason. FOAMGLAS® wasselected, since the filled ground top-ping the roof structure is meters thickand the roof has to bear considerablesoil pressure.

FOAMGLAS® –Compact Roof, doublesecurity to preventwater ingresswww.foamglas.ae

Roof structure1 Concrete deck2 Bituminous primer coat3 FOAMGLAS® T4+ slabs,

100 mm thick, in hot bitumen4 Bitumen roofing sheets,

2 layers5 Building protection mat6 Drainage layer7 Filter layer8 Intensive greening system

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Owner Metro GroupContractor builder ISInsulation Contractor ICS Built 2009Thermal insulation FOAMGLAS® T4 in 8 cm thickness

Parking roof

Shopping Mall, Merter M1 Merkez Santiyesi, Istanbul, Turkey

In Istanbul, the owner and the contrac-tor decided to use FOAMGLAS® asthermal insulation on the parking roofof the shopping mall. FOAMGLAS®

was choosen not only because of hishigh compression resistance but alsobecause the compact roof systems wasone of the best guarantee for the RealHypermarket underneath the roof. The2000 m2 of roof where insulated withFOAMGLAS® fully adhered to the

concrete slab. On top of FOAMGLAS®

two waterproofing membranes where100 % adhered and a slip layer wasloose laid before applying a finishingconcrete.

On the safe side.www.foamglas.ae

Parking roof description1 Concrete support2 Bituminous primer

~0.3 kg /m2

3 FOAMGLAS® Slabs fullyadhered with hot bitumen~5–7 kg /m2

4 Two waterproofingmembranes

5 Slip layer, PE 0.2 mm +/- 200 g /m2

6 Concrete finishing for roadtraffic1

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Architecture Pedro Lacerda Pimentel – Camilo RebeloEngineeering GOP – Gab. de Organização e Projectos LdaNunes da Silva and Ana SilvaBuilt 2007-2009Thermal Insulation FOAMGLAS® Compact RoofFinal Roof coverage asphalt

Parking roof, FOAMGLAS® S3compact roof

Museu de Arqueologia de Foz Côa, Portugal

In 1989, E.D.P. (Electricidadede Portugal)ordered an Environmental Impact Studyto be caried out in the Côavalley, inpreparation for the construction of alarge dam to be located near themouth of the river. In the frameworkof that study, a team of archaeologistsmade a preliminary survey of the area torecord and evaluate the cultural her-

EcologicallyRecommendedbuilding materialwww.foamglas.ae

Parking roof description1 Concrete support2 Bituminous primer

~0.3 kg /m2

3 FOAMGLAS® S3 Slabs fullyadhered with hot bitumen~5–7 kg /m2

4 Waterproofing membrane5 Polyethylene sheets6 2 cm mortar7 Acoustic layer8 Light concrete9 Waterproofing membrane

10 8 cm cold bituminous asphalt

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itage items that would be submergedor destroyed as a result of the construc-tion of the dam. An important aray ofarchaeological sites was identified,including four rock-shelters with pre-historic paintings. In November 1995,recognisingthe importance of the cultur-al heritage of the region, the Portuguesegovernment decided to halt the con-struction of the dam and to integratethis ensemble of finds into a CôaValleyArchaeological Park, including thismuseum.

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Architect Betrix & Consolascio Architekten, ErlenbachFrei & Ehrensperger Architekten, ZurichBuilt 2007FOAMGLAS® application Roof insulation, about 2680 m2 type F slabs in hotbitumen. Tapered Roof System (cut-to-fall slabs), 130 mm average thicknessFinish layer Grouting asphalt pavement

Compact rooffor car parkdecks

Letzigrund Stadium, Zurich, Switzerland

The characteristic feature of the newZurich Letzigrund Stadium is eleganceand not intrusion. Slim, slanting stayssupport the stadium roof. The innercourt and the stands are partiallyembedded in the ground. It is a multi-purpose event arena, where soccer /football and athletic sports (ZurichWorld Championships in Athletics)have excellent facilities and utilities.With respect to thermal insulation,FOAMGLAS® tops the league. Where

thermal efficiency needs to be com-bined with heavy duty (trafficked serv-ice decks), FOAMGLAS® cellular glassinsulation is a key player. It is also afront-runner as an ecological buildingproduct. It does not give off harmfulemissions (low-e product) and fulfillsall requirements regarding health andindoor air quality in buildings. Finally,durability is one of the essentialrequirements, and FOAMGLAS® insula-tion gets the best score.

Peak performance:compressive strength,safety, durabilitywww.foamglas.ae

Roof structure1 Concrete deck2 Bituminous primer coat3 FOAMGLAS® F slabs in

hot bitumen, 130 mm thick,Tapered Roof System

4 Bitumen roofing sheets, 2 layers

5 Separation layer6 Protection layer in mastic

asphalt, 30 mm thick7 HMT top layer, 100 mm thick8 Grouting asphalt pavement,

35 mm thick9 Gutter

10 Flashing strip11 Parapet

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Architect Atelier 8000, České BudějoviceBuilt 2006Build-up FOAMGLAS® compact roof, approx. 8500 m2 140 mm type S3, with 2 layers of bituminous membranes fully adhered by hot bitumenSurface finish Concrete redistribution slab on acoustic layer

Parking deckfor heavytraffic, bus terminal

Shopping centre 'MERCURY', České Budějovice, Czech Republic

The Architect’s task was to place the busterminal of 100 000 citizens city ČeskéBudějovice on the roof of Shoppingcentre located on the premises of oldground Bus terminal. The FOAMGLAS®

compact roof offered the unbeatablecompressive strength and most reliablesolution compare to all competitivebuild-ups. The main advantages ofFOAMGLAS® in this project are: highcompressive strength and rigidity,chemical resistance to oil products,durability and water-tightness of entire

roof build-up. The bus terminal servesseveral hundreds of buses every day andis located directly above the shoppingfloor. The acoustic layer based on rubbermat and gravel layer was adapted tothe design. The bus terminal build-upis designed not only for bus passing orits short stops, but also for longer timeparking and enables also to carry minorrepairs – i.e. tyre exchange which requiresuse of the lifting jack and can causeheavy point loads.

Ecologicallyrecommended buildingmaterialwww.foamglas.ae

Build-up1 Concrete2 Bituminous primer3 Temporary waterproofing4 FOAMGLAS® S3 140 mm,

compact roof system, in hotbitumen

5 Two layers of bitumen waterproofing membranes

6 Rubber mat7 Fine gravel8 PE-foil9 Reinforced concrete deck

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Architecture HOK, Hellmuth, Obata and KassabaumEngineering BechtelBuilt 2007-2012FOAMGLAS® Roof Insulation 11000 m2 as TAPERED ROOF SYSTEM(54 jet bridge roofs)

FOAMGLAS®

TAPERED and void formeron metal deck

Hamad International Airport Package 18, Doha, Qatar

Hamad International Airport (formerproject name New Doha InternationalAirport) replaces the old DohaInternational Airport as Qatar’s onlyinternational airport. It is the first air-port worldwide to fully handle AirbusA380, the world’s biggest commercialaircraft. Qatar has witnessed a highgrowth in passenger and cargo trafficin the recent years, so the old terminalsuffered from overcapacity. The plan-ning took place in 2003 and construc-tion began in 2004. The first two phases have opened in January, 2012.The FOAMGLAS® roof system is usedon the metal roofs of the 54 roofs ofthe jet bridges. The build-up compriseson the corrugated metal deck a densedeck to span the gap between the bigsupport. This can be neglected if themetal deck is chosen accordingly. Thegypsum board is mechanically fixed.The first layer of FOAMGLAS® 180 mmis applied as void former only becauseof the upstanding parts of structuralbeams. FOAMGLAS® is used instead oflight weight concrete because of the

high rigidity without compression,non-combustibility and the light weight.Above the FOAMGLAS® TAPERED ROOFSYSTEM with integrated slope is used,to create the slop and providing thethermal protection. An additional gyp-sum board as protection layer is fullybonded and covered with two layers ofSBS elastomeric bitumen waterproof-ing membrane fully torched, with UV protection.

Light, rigid, safe anddurable. The mostsimple system on metal deckwww.foamglas.ae

Build-up1 Metal deck2 Substrate board3 FOAMGLAS® T4+ 180 mm flat4 FOAMGLAS® T4+ TAPERED

ROOF SYSTEM 50-350 mmlaid in bitumen

5 Roof cover board6 Two layers of bitumen

waterproofing membranes,top layer UV-resistant

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Planning ASG Contracting RiyadhBuilt 2012Application Roof, 3000 m2, FOAMGLAS® READY BOARD T4+, 70 mm thick andT4+ slabs, 30 mm thick Wall, 2000 m2, FOAMGLAS® T4+ slabs, 70 mm thick Finish layer UV resistant bituminous layer waterproofing

Conversion to cold storage, Alsafi Danone, al Kharj, KSA

The Alsafi farm in al Kharj KSA is thelargest integrated dairy farm world-wide with Guinness World Book ofRecords entry 1998. The farm is fullyintegrated from the growing of forageto the final distribution of milk anddairy products and includes factoryand storage facilities. Due to theadjustment of the daily need theupgrading of a storage to a coldstorage needed to be done.The client decided to follow a proposalto upgrade the building envelope on the roof and the wall with

FOAMGLAS® systems which are FMapproved.The existing PU-panels on the hallwere the base for the application ofthe FOAMGLAS® on the roof. Thecorrugation filler and the top layer areexecuted with FOAMGLAS® cellularglass insulation. A double layer bitu -men membrane is the waterproofingand final finish of the roof.

Final performance testing of the clientshowed excellent performance to thefull satisfaction of Alsafi Danone.

Upgrade for the nextlifetime with durableand fire safeFOAMGLAS®

insulation materialwww.foamglas.ae

Roof system1 Existing PU-panel, 50 mm2 FOAMGLAS® T4+ filler,

30 mm, in corrugation gluedwith PC® 11 adhesive

3 FOAMGLAS® READY BOARD,70 mm, glued with PC® 11adhesive and mechanical fixation

4 Two layers of bitumen waterproofing membrane; top layer UV-resistant

5 Anchor F fixed into existing PU-Panel

Roof upgradeto high thermalperformance

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Owner Government of MoscowArchitect Bokov AndreyBuilt 2005-2006Thermal insulation 35 000 m2 FOAMGLAS® T4 140 mmFinish PVC SIKA

Compact roofon steel deck

Megasport Arena, Khodynka, Moscow, Russia

The erection of the Ice Palace in Moscow,later renamed the Megasport Arena start-ed in November 2005 at the KhodynkaField. This beautiful multi-purpose are-na was completed in December 2006.Moscow Megasport is an unrivalledconstruction, meeting all the modernrequirements needed to carrying outinternational sporting events. Basically itis aimed at hosting hockey, figure skatingand short-track contests as well as over20 other sports. The Megasport Arenaradiates with its festive look. An unusualhovering ceiling is like a giant chande-lier in the centre supporting a mediacube providing a large four sided visualdisplay which gives the 14 000 specta-tors a perfect view of the Ice surface.The media cube provides a colorfulbackdrop to the multi-colored seatingdesign around the arena. FOAMGLAS®

slabs were used in the Roof constructionand are adhesively bonded to the crownsof the steel deck. The bonding tech-nique, the high compressive strength &the dimensional stability of the insula-tion achieve an excellent rigidity of the

whole roof system. Non-combustibilityof FOAMGLAS® also plays also a keyrole in preventing possible damage inthe future. Warm indoor air with highhumidity – like a sport hall building –must not be allowed to condense withinthe construction build up otherwise thethermal integrity will not be maintained.FOAMGLAS® with its closed cellular glassstructure is non hygroscopic, fully waterand vapor-proof, keeping moisture out inlong term. Insulating the roof of a highhumidity building with FOAMGLAS® ful-fills all requirements regarding buildingphysics and indoor air quality. Finallythis roof solution ensures a lifetime ofperformance without degradation.

Do it right the firsttime with FOAMGLAS®

www.foamglas.ae

Build-up1 Steel deck2 Primer3 FOAMGLAS® T4 140 mm in

two layers (2 x 70 mm)4 Top coat of hot bitumen5 One layer of bitumen

waterproofing membrane6 Top layer of PVC membrane

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Client Unibail – RodamcoEngineering Office B.E.T. SECC (94)Contractors SNA (94) and Batecmo (78)Refurbishment 2011

Compact roofnon-accessible, waterproofingfoil

CNIT, Paris (75), France

The CNIT (Centre for New Industriesand Technologies) was built in 1958 inthe Paris la Défense development zonein the Puteaux suburb. It was concei-ved by architect Bernard Zehrfuss andthe structural engineer Nicolas Esquil -lan. It has the world’s largest spanningvaulted roof with a self-supportingshell and a central height of 50 m. Theroof rests on three supports at the cor-ners of an equilateral triangle of 218 mside length.

The refurbishment concept identifiedFOAMGLAS® T4+ and S3 blocks (di -men sions 45 cm x 60 cm and 22,5 cm x60 cm) as the optimal insulation soluti-on to meet the shape of the conti-guous arched concrete segments. Thethermal insulation is finished with afully adhered waterproofing foil, typeRAL 9010. For the more vertical areas of the roofFOAMGLAS® READY BOARD is cold-bond ed to the concrete deck.

FOAMGLAS®, the thermal insulationthat fits to all shapesof a constructionwww.foamglas.ae

System1 Concrete deck2 Adhesive3 FOAMGLAS® S3,

size 22,5 x 60 cm, 6 cm thick

4 2-layer waterproofing,bitumen compatible foil on bitumen membrane

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Architect Neutelings Riedijk Architecten, Rotterdam, HollandBuilt 2004Application 11 000 m2 of FOAMGLAS® T4Finishing Water

Compact roofcovered by anexpanse ofwater

Walterboscomplex, Apeldoorn, Holland

Captive Roof’s, no risk if you choseFOAMGLAS®

www.foamglas.ae

Build-up1 Concrete slab2 Bituminous Primer3 FOAMGLAS® glued with hot

bitumen 110 / 304 Coating of hot bitumen5 Bitumen membrane6 EPDM / SBS membrane7 Tiles as protection in option8 Level of water

The Walterboscomplex houses one ofthe largest branches of the NetherlandsCentral Tax Office. The original build-ings wer built in the 1960s and con-sisted of four office towers surroundedby parking bays and number of tempo-rary buildings. By the late 1990s, thesite required modernization and a newmaster plan was commissioned to bringcomplex up to date. The new mainarchitectural element that can be seenby the public from the street is thelarge reflecting pool with a clutch ofstainless steel-clad cones rising from it.Architects designed this plinth buildingas a sunken structure, which opens intotwo large underground patio gardens.The roof of the sunken building is cov-ered by an expanse of water, a reflectingpool that gives the grounds a naturalaura and connects with the parklandsurrounding the complex. All centralfacilities are located beneath the pool.The reflecting pool also works as asecurity barrier to protect the groundsfrom intruders. At the same time, thewater is a buffer tank used for cooling

the building & for sanitary water.Captive roof’s are being increasinglydesigned as a buffer for rainwater inorder to relieve the drainage systemduring heavy rains. But they also offerother options: Aesthetic beauty as wellas a reservoir of water in case of fire!With over 5 million liters above the headof this Green Complex, the FOAMGLAS®

Compact Roof has been logically chosenby the specifier. The system is designedto eliminate the risks of water ingressand leakage due to the imperviousqualities of the cellular glass insulation.

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Roof structures covering heated and cooled rooms

Three variations exist in the construction of thermallyinsulated flat roofs: the single skin flat roof (warm roof),the inverted roof and the twin-skin flat roof (cold roof).The design challenges associated with flat roofs can easily be avoided by choosing a FOAMGLAS® solution. Inthe following sections, some successful FOAMGLAS®

solutions are outlined.

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1 Secondary school Weid,Pfaffikon (Switzerland)

2 Lack of dimensional stabilityof insulation materials cancause warping and theroofing felt joints to burstopen.

Warm roof

Flat roofs, using insulation materialsthat are not stable when exposed tothe effects of rain or frost-thaw cyclesare at risk of thermal performance lossand need a 100 % effective water-proofing membrane for moisture pro-tection. As the roofing sheets on topare generally very impermeable to watervapor, a vapor control layer has to belaid beneath the insulation layer.

With rigid FOAMGLAS® being laidon plain structural decking there isno need to install an additionalvapor-barrier, because cellular glassCompact Roofs are totally imper-meable to diffusion.

The waterproofing is at serious riskwhere point loads puncture the roof-ing sheets that have been installed over

low-density and compressible insula-tion. The compressive strength of theinsulation is quickly exceeded. Lack ofdimensional stability of insulation mate-rial when exposed to thermal shockcan also cause damage to the weath-erproofing membrane.

Dimensional stability and integrityof FOAMGLAS® is absolute. It remainsstable, and even under permanentload, the roof system is fully sup-ported by the high compressivestrength of FOAMGLAS®. The struc-tural integrity and puncture resist-ance of the system reduce the likeli-hood of leakage.

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In rare cases of water ingress, moistureis generally kept at the surface of theinsulation. FOAMGLAS® forms animpervious skin that protects theroof. All roof components and lay-ers are bonded to each other so theinsulation will not absorb waterand the system prevents the spreadof water.

With conventional systems, water whichhas entered the roof, will find its wayto any imperfection in the vapor controllayer, run on the concrete deck andleak out inside the building. This makesit difficult to detect the origin of thedamage, and is likely to have harmfulconsequences for the insulation.

Inverted roof

The waterproofing membrane is directlyapplied to the structural deck and thencovered with an insulation that is mois-ture resistant when exposed to inter -mittent water load. Often extruded poly-styrene insulation (XPS) is used, in hotcountries FOAMGLAS® can be used aswell considering manufacturer’s advice.

However, in many environments insu-lation boards are frequently soaked byrainwater and XPS-boards becomepermeable to diffusion. Diffusion-tightcovering layers can lead to increasedmoisture content in the insulation,and, wet insulation results in signifi-cant heat loss as the heat is withdrawnby the water flow beneath the insula-tion boards. Permanently wet layershave the same effect as a topsidevapor-barrier and should be avoided.

For inverted green roofs, Green RoofBuilding Regulations demand protec-tion of the thermal insulation fromroot penetration. This requires anti-root membranes, which are, totallyvapor-proof. Use of these special roof-ing sheets is, however, contrary to therequirement of using covering layerspermeable to diffusion.

FOAMGLAS® cellular glass is imper -vi ous to the effects of moisture andis not affected by heat loss or inter-stitial condensation. A dry insulationis the best protection against roots.

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Roof structure of a non-ventilated roof ("Inverted roof")

1 Structural deck (in generalreinforced concrete)

2 Waterproofing membrane3 Extruded polystyrene boards (XPS)

with shiplap edge profile4 Filter layer (permeable to

diffusion)5 Finish layer

As in the FOAMGLAS® CompactRoof moisture is kept away fromthe structural deck, as the weatherproofing membrane isdirectly bonded on to the deck.

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Roof structure ventilated roof("cold roof")

1 Structural deck (e. g. reinforcedconcrete)

2 Vapor-barrier3 Thermal insulation4 Ventilation space5 Outer shell ( e. g. timber deck)6 Separating layer7 Roofing sheets8 Finish layer

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Conventional roof structure of a non-ventilated roof("warm roof")

1 Structural deck (e. g. reinforcedconcrete)

2 Vapor-barrier3 Thermal insulation (tapered slabs,

if required)4 Separating layer, dependent on

type of roofing sheets5 Roofing sheets6 Protection and separating layer7 Finish layer

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Deformation and irregularities in thestructural deck can also be harmful tothe weatherproofing sheets and caneven damage them. Irregularities inthe weatherproofing surface (e.g. sideoverlaps of bitumen roofing sheets, inparticular with 5 mm thick torch-onmembranes) can create voids beneaththe insulation, which are likely to haul concrete stone pavements of traf-ficked roofs. FOAMGLAS® installa-tion method is fast and easy.Potential irregularities at the insu-lation surface, which may bepassed on from the sub-construc-tion, can simply be levelled outwith a grinding tool. FOAMGLAS®

thus provides an optimal, stableand plane bearing surface for theroofing sheets.

Cold roof

This construction is twin-skin based ona thermally insulated sub-roof and anouter shell with weatherproofing – andin between a ventilated roof space. Inprincipal, the ventilation space helps toprevent condensation from beingabsorbed. In comparison with warmroofs, cold roofs have the advantagethat wet insulation has the chance todry.

FOAMGLAS® roof systems do notrequire a ventilation space, as cellu-lar glass is resistant to moistureabsorption (water and vapor) andacts as an efficient vapor-barrier.The rainproof insulation does notget wet from rain or mist. This elim-inates the risk of wet insulationbeing built in.

In a ventilated roof very small leaksmay not affect the construction, asthere is a chance for it to dry out. Incases of more significant leakage, evenafter repair, the problem may persistunless all roof components are removed.With an unpredictable leakage path,resolving it may prove to be a futiletask.

The FOAMGLAS® Compact Roof isimpervious with all insulation slabsand layers being bound to eachother, forming a water tight layerthat prevents the ingress of water.As it is a sealed system, the prob-lem tracking in case of leakage isvery easy.

Accessible or trafficked flat roofs, whichmust meet additional demands andrequire appropriate building technolo-gy, generally have no cold roof layout.

3 Polystyrene insulationdamaged by roots.

4 Investigation of an upside-down roof: in large areas the XPS insulation hasabsorbed moisture.

5 Wet insulation under paving.

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Weatherproofing – one- or two-layer system?

A two-layer waterproofing systemis preferable to one, as two layersapplied to the insulation have bet-ter puncture resistance and prod-uct reliability in case of bad spots inthe roofing membrane. With sin-gle-ply roofing membranes (andfelt joints) full imperviousness torainwater must be achieved. Withtwo or multiple layers of weather-proofing bonded to each other,

minor imperfections in one of thesheets does not allow water ingressinto the roof.

1 Imperfections in the cap sheet2 Imperfections in the underlay sheet

Two layers of roofing sheet fully bonded to each other provide saferrain proofing in case of bad spots inone layer or the other

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Sloping roofs

In the direction of the roof slope, theweather-proofing level should presenta falling gradient of at least 1.5 % tothe outlet or drainage gutter. If thefalling gradient is less, specific meas-ures have to be taken. For instance, thedrainage capacity needs to be improvedby lowering the outlet opening by atleast 20 mm below the weatherproof-ing surface. For balconies, accessibleroofs, terraces or roofs without protec-tion and mastic asphalt layers or fornon-ventilated timber constructions afalling gradient lower than the stipu-lated bare minimum is not allowed(see Building Regulations).

With warm roof construction thefalling gradient can be created by ascreed to fall on the concrete deck orby using cut-to-fall insulation slabs.

Inverted roofs should not be designedwith extruded polystyrene cut-to-fallinsulation slabs, as adaptation and lev-eling out by grinding become neces-sary. The full integrity of the foamedskin is essential to ensure the perform-ance of the roof system. In addition,the lowering of the rainwater outlets(if the falling gradient is lower thanstipulated) becomes problematic, sincethe waterproofing sheets are appliedto the structural concrete deck and'soft' insulation is not well suited tomake recesses once installed.

You should also be aware that accessi-ble roofs – designed with thermal insu-lation on top of the waterproofing –do not allow for a reverse gradient.Unlike warm roofs, totally horizontalinverted roofs cannot be designed(with regard to the constructional tol-erances).

FOAMGLAS® Tapered Roof Systemprovides an intelligent solution.The insulation slabs are tapered forany specific project and specifiedgradient. The construction of aFOAMGLAS® Tapered Roof is recom-mended in all cases where an addi-tional screed-to-fall on the structur-al deck is not practicable, eitherbecause of stability and load limi -tations or because of the roofdrainage pattern.

In order to prevent any water ingressFOAMGLAS® Compact Roofs or invert-ed roofs using FOAMGLAS® should notbe constructed with an additionalscreed-to-fall layer on top of the insu-lation. This is to prevent the risk ofleakage paths within the screed whereflashings/connections to parapet walls,doorsills or roof outlets may be fin-ished improperly.

Types of usage and construction layout

Compact Roofs are classified according to the type ofusage: Compact Roofs with limited accessibility, acces -sible Compact Roofs (terrace roofs), green CompactRoofs, trafficked Compact Roofs and 'natural or naked'Compact Roofs. The following section outlines the differentkinds of usage and the specific design principles. Withfocus on failure-free performance, some planning rulesare provided how to avoid possible damage.

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Compact Roof with limited accessibility

The Compact Roof with limited accessis a flat roof where accessibility is onlyallowed for maintenance. Thermal insu-lation is FOAMGLAS® T4+ and the slabsare fully bonded to the structural deckusing hot bitumen. A polymer bitumenweatherproofing is applied in two lay-ers – and covered by a protection layer;for instance a synthetic fiber fleecethat fulfills mechanical protection andfilter functions. To ensure long mem-brane life, a heavy protective layer ofwashed roofing gravel (shingle) isplaced, to offer resistance againstmechanical stresses and UV-attack.

For details of the different FOAMGLAS®

roof systems see page 8.

Accessible Compact Roof

The accessible Compact Roof is fre-quently situated in close proximity tocommon rooms. It covers heated roomsand can be used as outdoor livingspace. The elementary structure up tothe weatherproofing is identical to theCompact Roof with limited accessibility.In cases where no impact noise is alsoan issue, sound insulation boards canbe laid to replace the fleece layer. Theflooring is generally made of ceramic,concrete, cast stone or natural stonetiles, occasionally asphalt layers orboardwalk finishes are laid. Tiles areeither set into a mortar screed, into abed of fine gravel or placed on pres-sure distributing rubber pads.

Green Compact Roof

With green roofs, distinction is madebetween extensive and intensive plant-ing systems. Typical coverings for theextensive planting systems are low-levelfoliage and ground-cover plants, whichare not very demanding regarding soilthickness, nutrition and irrigation require-ments. A soil thickness of 5 to 10 cm issufficient for these types of plants andthey can even grow on pitched or slop-ing roofs.

1 Stadium 'Stade de Suisse'Wankdorf, Berne.

Typical possibilities for the intensiveplanting systems are conventional roofgardens, where time is spent and whichare kept immaculate. Plant and land-scaping choices are nearly unlimited.The plant species require a soil thick-ness from 15 cm to 1.5 m. Dependingon the type of plantings and theirmaintenance / nutrition requirements adistinction is made between "simpleintensive plantings" (grasses, herba-ceous perennials, low-growing bushes)and "intensive plantings" (includingbushes and trees, needing space fordevelopment). The layout of a greenCompact Roof from the waterproofinglevel upward generally includes the following functional layers (from topto bottom):

Soil: or the planting medium for theplantsFilter layer: to prevent fine particulatesoil from obstructing the drainage layerDrainage layer: to carry off rainwateror for water retentionBuilding protection mat: to offer pro-tection against mechanical damage ofthe anti-root membrane and the roof-ing sheetsAnti-root membrane: to protect thewaterproofing against root penetration(not required as an additional layer, if theroofing sheets themselves are anti-root)

For extensive planting systems a fallinggradient of at least 1.5 % is recommend-ed. With intensive planting systems therainwater is generally used to feed theplants and the installation of a waterretention irrigation system on top of azero degree waterproofing level meetsthe requirements.

The planting system protects the build-ing’s waterproofing against thermalstresses. However, risks of damagemay come from activities as:

horticultural work and outdoorleisure (risks of mechanical damage)

With extensive planting systems theeffort to detect possible leakage andto complete repair work are as compli-cated as on terrace roofs with tiles in abed of fine gravel. With intensive plant-ing systems (thick soil layers etc.) theseefforts and expenses can be much moresignificant.

As the source of the damage and thedamage caused by leakage are notlocated together, it is highly recom-mended to use materials, that limit orprevent the moisture penetration insidethe insulation: therefore fully bondedand impervious FOAMGLAS® CompactRoof systems are the best choice.

Trafficked Compact Roof

In this application preference is given tothe FOAMGLAS® system due to the highcompressive strength and the higherresistance to edge pressure of cellularglass. This is true also for heavy traf-fic – for instance, heavy goods vehicles(HGV). The allowable stresses can beapplied without any deformation ofthe insulation. The result is total secu-rity with a slim roof construction.

In rooftop car park decks, roofingmembranes are directly applied to theinsulation layer. To protect the water-proofing skin a load distribution layeris required. The thickness / reinforce-ment of the pressure distribution slabis dependent on the load assumptionsand the wheel load. If an asphalticwearing course is demanded, a matreinforced concrete slab of about 8 cmmust be laid beneath the two-layermastic asphalt topping. This reinforcedconcrete slab must be used for areas thatare exposed to weathering and notsheltered by a roof. In these exposedareas, heating and softening of themastic asphalt may be considerable. Inaddition, it has to be taken into consid-eration that, compared to non-accessedflat roofs, car park decks are subject tovarious additional stresses, which canbe quite high and induced by:

2 Insulation penetrated by roots.

3 Spreading / deformation ofthe pavement in consequenceof a soft, resilient substrate.

4 Breakage of tiles and tilt up of sleepers as a result ofdeflecting insulation in sub-construction.

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Mechanical stresses on thewaterproofing caused by the pavement and the traffic load

By braking and acceleration,shear forces around curves

On the joints / transition zones oflarge paving slabs or on joints ofthe load distribution slab

Stresses on the waterproofingdue to the deformation of thesupported load distribution slab(changes in temperature)

Stresses at fissures in the load distribution slab (caused forinstance by insufficient or lackingjoint cutting)

Stresses on the waterproofingdue to deformation of the structuraldeck under the traffic loads

Stresses on the waterproofing during construction (for instanceduring laying of the concrete orthe pavement blocks)

Stresses on the borders of theoverlay in front of rising walls (in particular with rigid topping).

The above inventory of stress factorsmakes it obvious that the choice of ahigh-grade waterproofing and thermalinsulation system is essential for the serv-ice life of a car park deck. Particularlycritical is that the weatherproofingmembrane be both robust and flexible.

Dependability of car park deck lay-outs: Leakage detection on warm roofswith reinforced concrete pavement israther difficult because of the longleakage paths and repair work requiresextensive effort and money. That beingthe case, FOAMGLAS® solution is thefirst choice. Cellular glass thermal insu-lation slabs fully adhered and bound toeach other with hot bitumen (and thewaterproofing applied by pour androll) ensures system integrity and pro-vides protection against water ingress.

Standard Compact Roof (aunatural) – with two-layerwaterproofing

Where roofing efficiency and minimaldead load are key requirements, thestandard Compact Roof without anyprotection layers or specific use finishesprovides the ideal solution. The roof

system must ensure full wind loadresistance. The wind forces have to bepassed on to the structure without anyrisk. In the standard Compact Roof aunatural this is accomplished by meansof bonding all layers to each other;from structural deck to insulation, tothe weather-proofing. Since this is ingeneral, the layout of industrial light-weight roofs on steel deck, this appli-cation is examined in more detail inthe following.

Industrial lightweight roof:Lightweight construction is increasinglybeing used for commercial and indus-trial buildings. This means that flatroof systems without any protection orfinish layers are being built. Where theindoor use requires thermal insulation,requirements for stability and the con-trol of interactions in building have tobe met as well. Conventional insula-tion systems often do not provide thesame efficiency and safety in the longterm as FOAMGLAS® systems canensure. An insulation made of highcompressive and non-combustible cel-lular glass has proven advantages.

Bonded system: particular require-ments: With profiled steel decking forlightweight construction the trendtowards particularly thin steel sheets,wide spans and wide troughs areobserved. This is where the use ofFOAMGLAS® adds to the structural sta-bility of the roofing design.

FOAMGLAS® Boards and slabs areadhesively bonded to the crowns of the steel deck. The bonding technique, the high compressivestrength and the dimensional stabil-ity of the insulation achieve anexcellent rigidity of the whole roofsystem.

Non-combustibility and the impervi-ousness to water and water vapor ofcellular glass play a key role in prevent-ing possible damage as explained inthe following.

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5 Obvious folds in the vapor-barrier The consequence:moisture is carried by airflowinto the insulation layer.

6 Corrosion damage on a steeldeck roof.

7 Perforated steel deck sheetson the soffit side. Eachmechanical fastener forms a cold bridge and is at risk of corrosion.

8 Condensation and shearstresses contribute to thedestruction of fasteners bycorrosion.

Damage symptoms and how to prevent them

Typical defects on flat steel deck con-structions can be categorized in fourgroups:

Leakage (rainwater ingress fromoutside) – e. g. because of a combi-nation of different materials, insuf-ficient fixing at connections andedges, imperfect butt- and side-joints on the roofing sheets.

Construction and functional deficiencies – due to non-observance of building physics(permeability to water-vapor andthermal insulation), installation of wet insulation material

Storm damage – due to insuf -ficient anchoring of canopies orpoor workmanship in sealing /bonding technology

Ageing of materials, failure ofmaterials: no weather-resistant top coatings, crack formation due to UV-attack, unsuitableroofing felts.

"A flat roof is as efficient as its con-nection joints": In addition to damagefrom physical interactions in buildingthe second contributory damage factoris faulty connection joints.

Building physics

Steel decks, contrary to heavy concretedecks, have very low thermal mass.Fluctuation in temperature has a directeffect on the indoor climate. In addi-tion, steel decks will not absorb mois-ture from ambient air. Condensationforming on the soffit from drippingwater is likely to appear more frequent-ly, if thermal insulation is insufficientlydesigned.

It must be ensured that the insulationlayer is adequately dimensioned andremains dry to ensure thermal per-formance after installation. An essen-tial consideration is moisture transportrelated to vapor diffusion. Warm airwith high humidity must not beallowed to condense moisture into theinsulation structure. To prevent thepassage of vapor, full vapor barriersmust be used with bonding tape on

the joint connections to form an air-tight layer. In many cases this is notdone, even with good workmanship.

FOAMGLAS® with its closed cellularglass structure is non hygroscopic, fullywater-and vapor-proof and keeps mois-ture out in the long term. Because of itsall glass closed cell geometry the vapor-barrier function is automatically incor-porated.

Deterioration in thermal performancecaused by water or water vapor can beavoided. Even in case where there aredeficiencies in the weatherproofingmembrane, the insulation performanceremains unaffected. And: the roof sys-tem layout keeps potential leakageconfined to a limited area.

No risks of corrosion

The long-term behavior of a roof maysubstantially be compromised by cor-rosion when mechanical fixing of thethermal insulation and the vapor-barri-er to the steel deck is required. For a5000 m2 roof area, using 4 mechanicalfasteners per m2 surface area, thismeans that the steel deck has 20,000perforations. Furthermore, the fasten-ers create cold bridging and can beharmed by condensation water. TheFOAMGLAS® Compact Roof solutionon steel deck avoids these difficulties.Using the compact construction method

where all layers are adhesively bonded,including steel deck, FOAMGLAS® insu-lation and the weatherproofing mem-brane, there is no need for mechanicalfasteners. In addition, the load-depend-ent vibrations and deflections of thesteel deck are considerably reduced asFOAMGLAS® stiffens the roof system.Residual dynamic stresses can be sup-ported by the FOAMGLAS® roof systemwithout problems.

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A win-win situation

Construction should be assessed for the long-term. Thebuilding owner wants to use their real estate for decadesand seeks sustainable performance without expensivereplacement or refurbishment. The guiding principle forinvestment should be "Once and for all". This strategy willpay off: The FOAMGLAS® Compact Roof system is likely toprovide a service life of 50 years or more. Be it residential,commercial, industrial or public construction: the qualityof the insulation system is critical for the service life ofthe roof and the sound structure of the building over thelong-term. It plays a key part in the overall cost efficiency!

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1 National Convention Center Cark Park, Doha, Qatar.

2 Migros Distribution Center,Neuendorf, Switzerland.

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Good investments help you save money

Escalating prices for energy make"investment in thermal insulation" theorder of the day, and probably for manydecades to come. In considering theprofitability in construction, it’s clearthat excellent thermal insulation is thekey to optimal efficiency. The axiom,"a penny saved is a penny earned" isvalid. The best solution is not the low-cost one, but the one that steadily savesenergy costs and eliminates expensivereplacement or refurbishment. It paysoff to invest in high-quality materials and

economic environment, the need forenergy-efficient house building and theuse of ecological construction materi-als is vital to our future.

Optimal protection for yourbuilding investments

Well-engineered FOAMGLAS® insula-tion technology – for the protection ofthe fabric of the building from theeffects of cold, heat and rain – is abooming market, particularly for flatroofs. Cellular glass insulation ensuresthat thermal performance remains effec-tive for the long-term and protects thebuilding against serious damage fromall sorts of catastrophes. This adds upto an all-inclusive value proposition,that smart architects and clients appre-ciate and choose.

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3 Armed Forces Officers Club,Abu Dhabi, UAE.

systems. FOAMGLAS® Compact Roofdesign ticks all the boxes. CompactRoofs bring a new dimension in struc-tural performance and economy.

Durability

Particularly for flat roofs, thermal insu-lation is the key to long-term preserva-tion of value of the building. Thermalinsulation makes part of the construc-tion elements difficult to access so therepair or replacement can even be costprohibitive. It is thus essential to paygreat attention to the choice of mate-rials and workmanship. It is withoutdoubt, that high-end FOAMGLAS®

Compact Roofs set the course for abright future.

For good and all

With 50 years of experience in flat roofinsulation it’s a fact: FOAMGLAS®

Compact Roofs offer solutions for themost demanding roof situations, withperformance that remains totally effec-tive for the lifetime of the building. Thishas been acknowledged by many build-ing-professionals. The trend towardsquality, according to the principle "Onceand for all", is increasing on construc-tion projects. In today’s challenging

37

Preventive action starts with thechoice of materials

"Fire disaster", "There is evidence thatfire safety regulations have not beenfollowed", "Rapid propagation of thefire has been encouraged", "Sea offlames" ...

These headlines make evident: To fighta fire in a building – in particular atroof level – is rather difficult, even iffire regulations have been followed.

All the more care and attention has tobe given to preventive fire protection.By choosing adequate materials androof systems the risk of fire develop-

ment – in particular the spread of fireacross voids and flammable materials –can be reduced significantly. In manycases FOAMGLAS® cellular glass insula-tion, especially the Compact Roof system, can help avert disaster.

Smoldering fires – extraneous perils

Fires of this nature generally spreadinside construction elements where theymay go undetected for a long time.Sometimes there are hours betweenundetected ignition and blazing up ofa fire.

The specific structural and chemicalcharacteristics of some insulants increasethe risk of smouldering fires. This isnot the case with FOAMGLAS®. The allglass closed cell structure of the insula-tion forms a shield.

Foam insulation, for instance poly-styrene or polyurethane, are com-bustible. During combustion, liquefiedand blazing parts of the material dripdown, causing fire to spread. In particu-lar for public buildings, in conferenceand exhibition halls, office buildings,hotels, restaurants and catering build-ings the use of combustible / flamma-ble materials is not recommended.

Preventive fire protection

After fire strikes intense discussions take place regardingresponsibilities and fire precautions. The part played byinsulation materials is a frequent issue. Studies provideclear evidence: FOAMGLAS® contributes to efficient pre-ventive fire protection. Cellular glass is non-combustibleand does not give off fumes or toxic gases.

1

1 The propagation of fire acrossthe roof can cause total damage on the building.

FOAMGLAS®: Neither fumes nor toxic gases

Fire disasters may not always exhibit"a sea of flames". Flashback to theevents at Düsseldorf Airport (1995),with 17 casualties or the fire in theMontblanc Highway Tunnel (1999),which caused the death of 39 people.In both cases toxic gases from insula-tion materials, that were not fire safe,were considered responsible for thefatality (polystyrene in Düsseldorf,polyurethane at Montblanc).

ASTMBy contrast FOAMGLAS® does not giveoff fumes or toxic gases. In respect tofire safety FOAMGLAS® performs unlikeall other insulation materials, classifiedas "non-combustible".This is established according to ASTM E 136 and Euro class A1. FOAMGLAS® provides real benefits interms of fire safety. ASTM E 84 attestsa smoke development of 0 and UL Building Materials Directory, aflame spread of 0.

FOAMGLAS®

melting point > 1000 °C

According to german DIN 4102-17 themelting point of FOAMGLAS® was test-ed at MPA Braunschweig Institute (D).More than 50 % of the insulationthickness lasted the 90 minute fireperiod without significant damage. Asan official result the melting point is>1000 °C.

General protection withFOAMGLAS® in case of fire: Melt Shield-Effect

Comparable as a thermal protectionshield the melted glas surface of theflame treated area is protecting thelower cell structure. The temperatureon bearing structure is remaining low.FOAMGLAS® is defending the buildingstructure in case of fire.

Superimportant for roofconstruction

The need for structural measures toimprove protection against fire in roofscannot be over-stated. The propagationof fire across a roof can cause totaldamage to a building. Combustible /flammable insulation materials andvapor control layers make up animportant fire load in the roof andinfluence the intensity and duration ofthe fire – vapor control layers and insu-lation can soften and burn. The firecan rapidly spread across the wholeroof and the prevention of totaldestruction is likely to be difficult. Thisdoes not apply to FOAMGLAS®. TheFOAMGLAS® Compact Roof stops thespread of fire across the roof and pre-vents complete combustion at roof level. A decelerated development of afire is a precious gain of time for firefighting – the property damage can bereduced and there is more time to rescue people in danger.

FOAMGLAS® offers superior performanceregarding preventive fire protection.

FOAMGLAS® is a safer product as it is pure and non-combustible cellularglass insulation. Reaction to fire classification: EN standard. Euro Class A1.

Closed cell FOAMGLAS® insulation prevents oxygen from passing throughthe material to tease the trouble spot.

FOAMGLAS® is gas-tight. The transfer of hot gases through the insulationand their development inside the insulation is avoided. FOAMGLAS® is asafety insulation that forms a barrier against the propagation of the fire.

5

6

4

4 FOAMGLAS® cellular glass is non-combustible.

5 Conclusion after testprocedure: FOAMGLAS®

melting point > 1000 °C.6 The propagation of fire across

the roof can cause total damage on the building.

To play safe

A series of fire testing concluded thatcellular glass has excellent fire controlattributes. Relevant test certificatesare available from the national FOAMGLAS® subsidiaries. With regardto recent findings in preventive fire pro-tection, architects and clients shouldredefine their safety requirements,which should be geared towards low-risk management for the roof construc-tion under fire conditions.

38

39

Production and composition

FOAMGLAS® manufacturing is twosub-processes. In the first part of theprocess the recycled glass is meltedand subsequently batched with theremaining raw materials and crushedin a mill. In the second sub-process thepowder mix passes in the cellulatingfurnace at high temperature whereFOAMGLAS® cellular glass is foamed –comparable to the process of fermen-tation in bread baking.

Typically 60 %+ of the raw material isrecycled glass. A very low percentageof carbon is added during manufactur-ing which makes the charcoal grey color of the insulation. In the cellulat-ing furnace the soft, viscous glass isfoamed through release of carbondioxide (CO2) and forms millions of air-tight glass cells enclosing the gas. Thisclosed cell glass structure ensures fullresistance to the transmission of vapor(resistance to water vapor transmissionμ = oo).

Excellent Ecological profile

FOAMGLAS® insulation systems are stable under all con-ditions of use and protects the owner from unexpectedexpenditures for heating or expensive replacement of theinsulation or repair. FOAMGLAS® systems safeguard theenvironment one way or another. They allow for energysaving and, from the cradle to the grave, they do notcontribute to environmental pollution, a safe productconsistent with the principles of building physics. Cellularglass is certified to standards of health and indoor airquality. Ecologically viable product recycling is possible inthe case of building demolition.

1

1 Renewable energy sources are increasingly used inFOAMGLAS® production.

2 FOAMGLAS®: millions ofairtight glass cells.

2

40

Environmentally friendlyproduction

The raw materials used in the FOAMGLAS® production are inherentlymineral and thus environmentallyfriendly. Principal raw material is recy-cled glass. Further raw materials arefeldspar, sodium carbonate, iron oxide,manganese oxide, carbon, sodium sul-fate and sodium nitrate. By the intro-duction of recycled glass into the pro-duction FOAMGLAS® makes a relevantcontribution to the protection of theenvironment.

Minimal environmental pollution

Due to improvements in process engi-neering and in the energy supply (com-ing from hydro electric energy andwind turbines) significant progresseshave been achieved in recent yearsregarding air pollution, greenhousegas emissions, consumption of energyand resources:

The demand for non-renewableenergy was reduced 4.24 kWh/kg.

Greenhouse gas emissions havebeen halved.

The percentage of recycled glasswas progressively increased from 0 % to 30 and to 60 %.

The environmental pollutionscore (UBP97) was reduced from1619 to 743 points.

The eco-indicator (EI99 H, A)dropped from 0.13 to 0.09 points.

Reduction of the production energymeans that the time period for energyamortization of the investment in ther-mal insulation – as an important evalu-ation unit – is considerably reduced.

1

2

5

6

7

3

13

9

9

10 8

11

12

4

FOAMGLAS® manufacturing(Tessenderlo Plant, Belgium)

1 Mixing and batching of the raw materials: Recycled glass, feldspar, sodium carbonate, iron oxide, manganese oxide, sodium sulphate, sodium nitrate.

2 The melting furnace has a constant temperature of 1250°C.

3 Molten glass is drawn out of the furnace.

4 Control room for monitoring the production.

5 The glass is drawn off and falls onto the conveyor band where it cools down before enteringinto the ball mill.

6 Addition of “carbon black”.

7 Ball mill grounds all ingredients into a fine powder before putting into stainless steel moulds.

8 The filled moulds pass through a cellulating oven (Foaming furnace) with a temperature of 850°C.This is where the material gains its unique cell structure.

9 Energy recovery of heat.

10 The FOAMGLAS® blocks pass through an annealing oven to allow carefully controlled cooling of them without thermal stress.

11 The blocks are cut to size and sorted by batch. Production waste is recycled.

12 FOAMGLAS® slabs are then packaged, labelled and palletized.

13 Finished FOAMGLAS® products are stored and prepared for transport.

41

0 20 000 40 000 UBP / m2

17 157

21 807

23 790

26 571

46 056

53 232

FOAMGLAS® W+FFOAMGLAS® T4+Polyisocyanorate (PUR)Expanded polystyrene (EPS)Stone woolExtruded polystyrene (XPS)

0 2000 4000 6000 8000

Cellular glass

Stone wool

Expandedpolystyrene (EPS)

Polyisocyanurate (PUR)

Extrudedpolystyrene (XPS)

Waste disponal Production total

14.9888903

26.919902020

200032205210

180043006100

200064908490

UBP / kg

? ?D* d weight UBP* UBPInsulation per m2 per kg per m2

kg / m3 W / mK m kg / m2 UBP / kg UBP / m2

FOAMGLAS® T4+ 115 0.041 0.21 24.15 903 ~ 21 807

FOAMGLAS® W+F 100 0.038 0.19 19.00 903 ~ 17 157

Polyisocyanorate (PUR) 30 0.026 0.13 3.90 6100 ~ 23 790

Stone wool 120 0.038 0.19 22.80 2020 ~ 46 056

Expanded polystyrene (EPS) 30 0.034 0.17 5.10 5210 ~ 26 571

Extruded polystyrene (XPS) 33 0.038 0.19 6.27 8490 ~ 53 232

* The data are taken from building database KBOB / EMPA, june 2009.** The environemental pollution score (UBP 2006) quantifies the pollution coming from resources, water consumption, emissions into air, water andground and also for the waste disposal. The environment pollution through grey energy and global warming are included in the UBP score.

FOAMGLAS® stands comparisonThe environemental pollution score (UBP 2006**) for the production and waste disposal of FOAMGLAS® is 903 points /kg(insulation). This puts FOAMGLAS® into the pole position in eco-balance. Other insulation products show points between2020 (stone wool) and 8490 (Extruded polystyrene).

Compared to surfaces, with a specified insulation value of 0,20 W/m2K, FOAMGLAS® performs very well. The environ-mental pollution score (UBP 2006**) of cellular glass is 17 157 points (FOAMGLAS® W+F), 21 807 points (FOAMGLAS®

T4+) per square meter. Other insulation products show 23 790 points (PUR), 26 571 points (EPS), 46 056 points (stonewool) and 53 232 points (XPS) for an identical U-value (see table).

42

Ecological assessment for different thermal insulation materials

Pro

du

ctio

n e

ner

gy

Res

ou

rces

Nu

isan

ce f

or

wo

rker

s

Emis

sio

ns

du

rin

g

pro

du

ctio

n

Emis

sio

ns

in c

ase

of

fire

Lon

g-t

erm

per

form

ance

Dis

po

sal /

Rec

yclin

g

Glass wool

Stone wool

Cellulose insulation

Pure expanded cork

Expanded polystyrene

Extruded polystyrene

Polyurethane (PUR)

FOAMGLAS®

Very good Acceptable Critical Very critical

Positive ecological assessment for FOAMGLAS®: Source: Cellular glass insulation, a cost-effectiveand environmentally sustainable solution. [Schaumglas-Dämmstoff, Wirtschaftlich und umweltver -träglich Dämmen.] Markus Welter, Lucerne, Switzerland

World resources

The principal raw material of FOAMGLAS® production today is select-ed recycled glass (in the past the mainraw material was silica sand). The sup-plies of recycled glass are ample, as inthe construction and other industrieslarge quantities amass and have to bedisposed of as waste. Plastic foaminsulation, however, is produced fromcrude oil, which is a non renewablefossil fuel.

FOAMGLAS® cellular glassinsulation products now withnatureplus label

Natureplus, an international organisa-tion for the development of a cultureof sustainability within the buildingsector, has selected cellular glass ther-mal insulation from Pittsburgh CorningEurope SA as a green building productand awarded the natureplus qualitylabel. "Cellular glass thermal insulationby Pittsburgh Corning Europe SA ideallymeets the quality requirements for asustainable construction product", notedUwe Welteke-Fabricius, president ofnatureplus e.V., when handing-in thecertificate. The natureplus quality seal isthe symbol of recognition for buildingproducts with a high level of quality inthe areas of health, the environmentand functionality. Pittsburgh Corning’sFOAMGLAS® types W+F, T4+, S3 and Ffrom the Tessenderlo plant (Belgium)are tested and certified successfully.

Service life

Having outstanding qualities (mineral,impermeable to water and vapor, resist-ant to acids, non-combustible, high-temperature resistant), cellular glass is avery durable material. The long servicelife of the material has very positiveeffects, ecologically and financially, onthe service-life of the construction and,consequently, on the life of the build-ing. Maintenance and replacementcycles can significantly be reduced bythe use of durable materials.

Emissions / nuisance during installation and use

Cellular glass does not release harmfulor toxic components into the environ-ment. It does not contain green housegases or ozone depleting products, noflame retardant and no con-taminativeor carcinogenic particles and fibers.When recommended installation instruc-tions are followed, cellular glass insula-tion does not produce emissions thatdegrade the environment or health, atproduction, installation nor use.

Emissions in case of fire

Dumping and burning of constructionwaste is most critical for the environ-ment, even in small quantities. In par-ticular plastic foam materials are classi-fied as harmful. In the case of burning of these materials high levels danger-ous emissions are released than in com-bustion in an incineration plant. Studieshave been conducted in Germa ny on

thermal combustion of polystyreneinsulation, which clearly indicated thatreleased fumes are acutely toxic. Seriousadverse health effects in the long-termcannot be excluded. Even with com-bustion in a waste incineration plant,there is high impact to the environ-ment, as annually several thousand tonsof slag and filter residue have to betransported to special disposal sites.The non-combustibility of cellular glassmakes the toxicity issues irrelevant.

natureplus – The European quality sealfor approved green building products.

43

FOAMGLAS® – a valuable contribution to theprotection of the environment.

Today FOAMGLAS® is made from about 60 % recycled glass. The FOAMGLAS® manu -facturing concept is waste reduction and green energy utilisation.

For the FOAMGLAS® production only energy from renewable sources is used.Environmental pollution during manufacturing has halved when compared to 1995.FOAMGLAS® insulation meets all environmental and health requirements for construc-

tion products.At the end of its service-life FOAMGLAS® disposal is simple. One option is the use of

recycled cellular glass as infill in trenches or back-up for buried pipes.FOAMGLAS® has an outstanding service-life, which is clearly the best for the

environment.On balance: FOAMGLAS® is an insulation concept fit for the future that gives an

answer to the genuine concerns for the environment. The system ensures that alldemands on performance, durability, environmental integrity and sustainability arefulfilled.

Waste disposal

In the assessment of insulation materi-als one consideration is repercussionson the environment from waste dis-posal. There are significant differencesbetween the various insulation prod-ucts. In total evaluation – and consid-ering the scarcity of raw materials – asdocumented in eco-balance data sheetsfor the building industry, plastic foaminsulation receives poor ratings for envi-ronmental pollution.

Recycling

Cellular glass being non-combustible,combustion in a waste incineration plantis not a possibility. An option is therecycling of cellular glass as crushedstone (for bedding in road construc-tion) or infill material for noise barriers.Recycled FOAMGLAS® is a safe andsuitable product for these applications,as it is dimensionally stable, neutral forthe environment, inorganic, rot-proofand without any risks for the groundwater (meets ELUAT-test requirements).If crushed and recycled FOAMGLAS® isnot used as bedding or infill material,it can be taken to an inert waste dis-posal site, like crushed concrete orbrick.

LEED® and FOAMGLAS® insulation

LEED® is an internationally recognizedgreen building certification system,providing third-party verification that a

Sustainable Sites – Vegetated RoofLEED-NC Credit 6 – stormwater managementLEED-NC Credit 7.1 – roof heat island effectFOAMGLAS® insulation can be part of a vegetated roof design, which isone sustainable strategy that can be used to earn both of theseSustainable Sites credits.

Energy & Atmosphere – Energy Performance and Refrigerant ManagementLEED-NC Prerequisite 2 – minimum energy performanceLEED-NC Credit 1 – optimize energy performanceIn the LEED® rating system, up to 19 points can be awarded for improved energy efficiency. FOAMGLAS® insulation can be used as onestrategy to help achieve the required energy performance and to furtherreduce the amount of energy consumed.

LEED-NC Credits 4.1 and 4.2 – recycled content FOAMGLAS® insulation that incorporates recycled materials can be included in this calculation of the total recycled content in all building materials.

Materials & Resources – Recyclable, Recycled Content andRegional MaterialLEED-NC Credits 2.1 and 2.2 – construction waste management FOAMGLAS® insulation scrap waste can be recycled.

LEED-NC Credit 4 – enhanced refrigerant management

Indoor Environmental Quality – Low-Emitting MaterialsLEED-NC Credit 4 – low-emitting materialsThough insulation is not considered in this section, using FOAMGLAS® insulation eliminates another potential source of VOCs in abuilding. Low-VOC sealants and adhesives sold by Pittsburgh Corningcould be used as part of this strategy.

Pittsburgh Corning FOAMGLAS® is committed to conducting its businessin an environmentally responsible manner that protects the public, itsemployees, and a country’s natural resources. Therefore, PittsburghCorning’s environmental practices are in compliance with all applicableenvironmental laws and regulations.

building or community was designedand built using strategies aimed atimproving performance across all themetrics that matter most: energysavings, water efficiency, CO2 emis-sions reduction, improved indoorenvironmental quality, and steward-ship of resources and sensitivity totheir impacts. FOAMGLAS® insulation

can contribute toward earning LEED®

points on a project. While no one pro-duct or material alone can earn LEED®

credit points, FOAMGLAS® can beused as part of a strategy to earnpoints in several credit categories.FOAMGLAS® is also eligible for LivingBuilding Challenge™ Projects becauseit con tains no red-listed materials.

3

4

5

3 The percentage of recyclingglass in the FOAMGLAS®

production has gone up from30 to 60 %.

4 Crushed FOAMGLAS® – arecycled filler material fortrenches.

5 FOAMGLAS® EnvironmentalProduct Declaration(according to ISO 14025).

6 FOAMGLAS® is Masdar A rating.

6

www.foamglas.com

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Pittsburgh Corning Europe Rep. Office Middle EastArenco Tower, Media CityP.O. Box 213345Dubai, U.A.E.Phone + 971 4 434 7140Fax + 971 4 432 7109info@foamglas.aewww.foamglas.ae

Pittsburgh Corning Europe NVHeadquarters Europe, Middle East and Africa (EMEA)Albertkade 1, B-3980 Tessenderlowww.foamglas.com

Copyright Oct 2013. The product information and technical details contained in this brochure areaccurate, according to our research and technical programme, at the point of going to press. Wereserve the right to make any changes to the construction or product range, which seam technicallyappropriate, in view of our high standards for product advancement and development. All up-to-date data can be found under the button products on our website:www.foamglas.com