Telling Architectural LimitedUnit 4 EStation RoadFour AshesWolverhamptonWV10 7DFTel: +44 (0) 1902 797 700Fax: +44 (0) 1902 797 720Email: info@telling.co.uk

Leading suppliers of GRC fibres and polymers

Manufacturers of GRC production equipment

Producers of distinctive brick slips and clay profiles

Creators of ceramic innovation

Suppliers of rubber and moulds for GRC panels and profiles

OUR PARTNERS

London ShowroomUnit 129 Business Design Centre52 Upper StreetLondonN1 0QHE: info@telling.co.ukTel: +44 (0) 207 288 6724Email: info@telling.co.uk

www.telling.co.uk

Excellence in Glass FibreReinforced Concrete

Suppliers of distictive pre-mixed GRC systems

About TellingTelling Architectural have established a modernfacility at their plant in Four Ashes,Wolverhampton to manufacture glass fibrereinforced concrete (GRC)

Established in 2002 Telling have a reputation forthe design and supply of innovative forms offaçade cladding.

Our 60,000 sq ft modern facilities, handlingequipment and methods enable us to offer offsite manufactured GRC panel including pre-fabrication where required.

Our skilled operatives are capable of producingGRC ranging from the most basic flat panelformats, to complex 3D and curved forms, pre-fabricated and pre-finished with ceramic or brick.

Our production is undertaken under license to Byggimpuls Fiberbeton whose systems have beenproven in use over 25 years in the harsh climatesof Scandinavia.

Telling Architectural manufacture all grades ofGRC recognised by GRCA International, theindustry’s governing body, hold ISO9001 &ISO14001 accreditation and are workingtowards ISO18001 in early 2018.

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The company undertakes specialised projects such as the‘chevron’ shaped roof panels of GRC in which the Cumellaceramic tiles from Barcelona were both adhesively bondedand mechanically attached to GRC in turn mounted onprefabricated aluminium frames. 180 panels each with adifferent tile configuration were produced.

Existing customers of Telling know thatwe do not stand still and our moving toa bigger facility means demands upon usto take an increased market share withcontinuing diversification can be met.

Telling Architectural welcome visits byclients, contractors and architects whowish to see the production of the GRCpanels and brick facing process.

Our extensive storage facilities enable panels to bemanufactured in advance and stored in readinessfor delivery to site.

The majority of our façade projects require thespecialised grade 18 GRC which is the highesttechnical performing of the GRC grades. Thisallows Telling to manufacture large format panelsystems as standard or bespoke façade totalsolutions.

Telling have developed pre-fabricated brickcolumns and spandrel panels which at 100 kgs perm2 will offer optimum savings to clients in weight,speed and installation.

Brick slips are profiled on the rear face to receivemechanical anchors embedded in the GRC panelsproviding pull out values in excess of 2 kN peranchor.

Design of our GRC facades is undertaken by ourin-house team of draughtsmen and engineers. Ourlaboratory carries out daily analysis to ensure thatour GRC meets the design performance for theselected project in terms of MOR and LOP

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Byggimpuls AS has its headquarters in Oslo Norway, with regionaloffices in Sweden and the UK supporting their operations inEurope. They manufacture exceptionally high quality vertical andhorizontal linings for the exterior and interior building envelopein GRC [Glass Fibre Reinforced Concrete] and have a reputationfor delivering premium quality profiles in short timelines, toexacting standards all within budget.

They have delivered complete solutions where it was believedone did not exist. The national Opera House in Oslo, The KildenCentre for Performing Arts in Kristiansand and the Scandic VulcanHotel are examples of their expertise.

‘By the transfer of production process, engineering technologyand management, Telling Architectural licensed the manufacturingof the Byggimpuls Fibrebeton processes in the UK, developingand testing them where necessary to meet the requirements ofBritish Standards and the GRCA.

Who are Byggimpuls AS?

GRC is a fibre reinforced pre-cast concretewith a 50-50 sand cement matrix in a typicalwall thickness of 12 to 15mm thick. Reinforced rib profiles created around theperimeter and across the rear face atdesigned centres provide the structuralintegrity of the components. These ribs arebetween 50 and 100mm in depth and are notvisible once the façade is assembled.

GRC is made in thin concrete sectionscreated by a proprietary process of machinespraying an enriched OP cement and silicasand mix within which alkali resistant glassfibres and polymers combine to provide theengineered performance. Unlike steel, glassfibres will never rust and are consistentthroughout the thickness of the profiles. GRCis approximately 80% lighter than pre-castreinforced concrete cladding and 70% percent than traditional brick. It offers greateraccuracy in manufacturing and installation withexcellent flexural strength. It isenvironmentally preferred with a lowercarbon footprint by reducing the co2emissions created during manufacture andupon associated elements of the structure.It is lightweight imposing less load on thebuilding frame and thereby producingeconomies in structural sections for the frameand foundation.

The GRC panels, range from basic storeyheight units, to more complex 3D and curveddesigns, in natural aggregate finishes, polishedor faced with brick/ceramics. They are provingto be suitable for new construction and therefurbishment of existing buildings.

Telling Architectural supports it range ofcladding systems with in-house design andengineering services providing technicalsupport to the client from the outset in aneffort to maximise these advantages. Ourmodern facilities, handling equipment andmethods enable us to offer off sitemanufactured GRC panel including pre-fabrication where required.

What is GRC?

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The weight of brick faced GRC is 40% of hand laid brick and 25% ofprecast.

Accellerated weather testing has been undertaken to determine themechanical bond strength and the performance of the brick, mortar andconcrete in accordance with ETAG 034. Impact and pull off testing werealso undertaken with further detailed evaluation underway for review for asoffit application as well as general service as a cladding medium by theNHBC.

The development of offsite manufactured brick panels offers advantages in

• weight to promote savings in the ground and the structural frame• speed of installation removing the need for multiple trade contractors• quality by obviating the skills shortages upon high rise structures• logistics in material distribution and access strategy• programme whereby the façade is wholly removed from the critical path and is supplied to site on a just in time basis• tower cranes – the reliance upon these for the external facade is removed with installation by mono rail or spider crane

Telling has developed the technology for brickfaced GRC panels, columns and spandrels panelswhich at 100 kgs per m2 offer savings to clients inweight, speed and installation. Hand-made,extruded or standard brick slips, 16-24mm thick,are mechanically fixed to the grade 18 concretewith threaded stainless steel rods embedded in therear face of the brick.

Pull out values in excess of 2 kN per anchor areachieved. Special lime mortars ensure penetratingmoisture is evacuated through the pointing joints.A recently completed scheme on 160 Aldersgatein London (pictured) is testimony to the qualityand benefits of lightweight offsite manufacturedbrickwork.

Manufactured in rubber moulds, brick faced GRCcan use any brick of an appropriate quality in stack,running and ‘Flemish’ bond with depth/style ofpointing created from the in house manufacturedmould design.

Brick Faced GRC

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Characteristic Mechanical Properties of Byggimpuls Grade 18 GRC at 28 days

(MOR28) 18-30 N/mm2(LOP28) 5-10 N/mm2(UTS28) 8-12 N/mm2(BOP28) 4-6 N/mm2Interlaminar Shear 2-4 N/mm2In-Plane Shear 7-12 N/mm2Punching Shear 25-25 N/mm2Charpy Impact Strength 15-25 N/mm2Dry Bulk Density 18-21 Kg/m3Water Absorption 8-13%Apparent Porosity 16-25%

MOR - Modulus of Rupture (flexural), the ultimatebending stress obtained from the four point bendtest.LOP -Limit of Proportionality (flexural) ie the pointat which the stress/strain curve deviates from astraight line.UTS - Ultimate Tensile Strength - Stress at whichGRC fails in pure tension.BOP - Bend over point (tensile), namely, the stressat which the stress/strain curve deviates from astraight line variation when a sample of GRC is testedin direct tension.

Telling have an in house testingfacility which in addition to the

daily calibration and qualitycontrol measures enables them totest in isolation panels produced

on any given day. A bar codescanning system creates total

traceability through the productionprocess with unique panel

reference labels attached to thedelivered units

The thickness and weight of the systems will vary according tothe system design:

For bespoke and unitised solutions the weight per m2 will beproject specific.

NORSKREEN M4™ claddings weigh approx. 50-70kg per m2NORSKREEN M2™ panels weigh approx. 40-50kg per m2

GRC is a versatile pre-cast concrete material creating façadeelements from as small as 450X450mm up to storey height panels.Manufacturing seamless cast corners, returns to windows, integralwindow cill, coping and soffit details, all promote a widescalereduction in unsightly panel joints on the elevations.

The surface of our GRC is closed and extremely dense ensuring theunits are fully waterproof and easily maintained.

Since the Telling GRC is manufactured from natural materials withcolours and textures produced using UV stable natural pigments andochres and aggregates. There is a subtle mineral variation in each unitproviding a natural warmth and softer aesthetic than can be achievedwith man made synthetics and metals.

Generally the performance of Grade 18 GRC (as with pre-cast concrete) is determined by engineered calculationsalthough CWCT weather performance and impact testinghas been undertaken upon a variety ofschemes/applications.

Whilst GRC Grade 18P has a generic fire test evaluationindicating it to be Class O surface spread of flame, providingfour hours integrity and A1 performance our systems arecurrently undergoing firetesting across the range of GRCpanels including the brick facings.

Accellerated weather testing has been undertaken onpolished aggregate, brick faced and standard GRC panels.

Testing and FirePerformance

Technical Performance data

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In broad terms Telling GRC envelope solutionswill fall into four categories;

• Bespoke GRC façade solutions including brick/ceramic facings• NORSKREEN M4™ unitised GRC façade system• NORSKREEN M2™ GRC rainscreen façade system• Unitised ‘I’ frame columns and panels

All GRC components are manufactured at apurpose built factory in Four Ashes, NrWolverhampton in England.

The GRC components are manufactured in allcases to the current guidelines laid down bythe GRCA International specification for themanufacturing and curing of GRCcomponents.

ISO 9001 internal quality control systems arerigorously applied at all times, with supportfrom external and independent qualityassurance bodies.

Components are designed using firstprinciples under the guidance of the GRCAinternational limit state design guide and theapplication of Finite Element Analysistechniques again used in line with the limitstate design guide. Some of the standardsystems such as the NORSKREEN™ M2 &M4 systems are designed and tested in linewith CWCT guidelines and therecommendations of the BS codes or relevantbodies.

Telling Architectural offer a range of façadesranging from spanning storey height units Intheir NORSKREEN M4™ range to thin sectionpanels using the NORSKREEN M2™ system.GRC cladding can be used in traditionalconstruction, within unitised curtain walling oras a ventilated cavity rainscreen.

Byggimpuls AS are a leading Europeanmanufacturer of GRC and their transfer oftechnology, management and manufacturingexpertise has enabled us to be creative in thedesign of our modern day façades. Whether apigmented colour or natural in grey or white,textural or smooth faced, pre-mixed GRC canbe cast in moulds made from GRP, rubber ortimber to produce the most consistent detailand quality available.

Façades

These formers allow GRC to closely replicate smoothnatural stone or travertine, split face and ‘hammered’ effects.For refurbishment cornices, columns, parapet features andother mouldings can be replaced with excellent accuracyand consistency of profile. Decorative columns or otherclassical features can be added to existing or new buildings.

Off Site and Unitised ConstructionTelling Architectural manufacture their GRC in large formatpanels which are lightweight and can be mounted onaluminium or steel frames . They welcome NDA exclusivepartnerships with specialised unitising fabricators. GRC canalso be used in modular construction with bracketsmounted prior to stacking of the pods.

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Telling Architectural has in house engineeringfacilities to design support systems varyingfrom the most simple and economical tobespoke solutions, each designed to withstandloadings applicable to the individual structure.

Support systems vary from lightweight rail andclips systems to suit the weathering profile ofthe NôRSKREEN™ panels which are availablein a range of natural colours in a maximumheight of 1.0 metre and length of 4.0 metres.

Support Systems

GRC will perform equally as well as pre-cast concrete andthere is guaranteed to be no maintenance or degradationassociated with rusting or spalling of steel reinforcement.

Telling Architectural have adopted the most advancedtechniques developed by GRC companies since theintroduction of the process in the 1980’s. Developments inthe fibre sizing, mix proportions and applications expertisehave been ongoing in this much studied industry. Supportedby accelerated aging analysis the performance of GRC isnow widely acknowledged enabling designers to engineerwith confidence for 50+ years life expectancy.

The weathering of the panels will greatly be dictated by localenvironmental conditions. Based on the performance ofGRC over the last 25 years weathering is assessed to belittle different from that of natural materials of equivalentporosity such as stone.

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Linished GRC for water repellency

Weathering and LifeExpectancy