1 The Building Regulations 1991 (as amended) (England and Wales)The Secretary of State has agreed with the British Board of Agrémentthe requirements of the Building Regulations to which cladding productscan contribute in achieving compliance. In the opinion of the BBA,

Trespa Meteon Cladding Systems, if used in accordance with the provisions ofthis Certificate, will contribute to meeting the relevant requirements.Requirement: A1 Loading

Comment: When designed as specified in sections 7.3 to 7.5, 9.3and 9.6 of these Front Sheets and the marked sections of theaccompanying Detail Sheets, the products have sufficientstrength and stiffness to accept wind loads and to transferthem to the supporting structure.

Requirement: B4(1) External fire spread — external walls

Comment: The products are acceptable for use as dictated by the resultsand considerations included in sections 10.1 to 10.4 ofthese Front Sheets.

Requirement: C4 Resistance to weather and ground moisture

Comment: The cladding panels will resist the passage of rainwater tothe supporting structure. See sections 11.1 to 11.3 of theseFront Sheets.

Requirement: Regulation 7 Materials and workmanship

Comment: The products are acceptable. See section 13 of these FrontSheets.

Trespa International B.V.P O Box 1106000 AC WeertThe NetherlandsTel: 00 31 0495 458358 Fax: 00 31 0495 458570

AgrémentCertificate

No 99/3629/C

Designated by Governmentto issue

European TechnicalApprovals

TRESPA METEON CLADDING SYSTEMSPanneaux de façadeVerkleidungsplatten

Product

Regulations — Detail Sheet 1• THIS CERTIFICATE OFCONFIRMATION REPLACESCERTIFICATE No 91/2628AND RELATES TO TRESPAMETEON CLADDINGSYSTEMS, INCORPORATINGTRESPA METEON CLADDINGPANELS AND FIXINGMETHODS.• The cladding panels havebeen assessed for useexternally on buildings as adecorative and protectivefacing, fixed via timber battensor aluminium sub-frames.• It is essential that thecladding panels are installed inaccordance with themanufacturer’s instructions andthe requirements of thisCertificate.

CI/SfB

(41) R

continuedReaders are advised to check the validity of this Certificate by either referring to the BBA’s website (www.bbacerts.co.uk) or contactingthe BBA direct (Telephone Hotline 01923 665400).

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2

2 The Building Standards (Scotland) Regulations 1990 (as amended)

In the opinion of the BBA, Trespa Meteon Cladding Systems, if used inaccordance with the provisions of this Certificate, will satisfy orcontribute to satisfying the various Regulations and related Technical

Standards as listed below.Regulation: 10 Fitness of materialsStandard: B2.1 Selection and use of materials and components

Comment: The products are acceptable. See section 13 of theseFront Sheets.

Regulation: 11 StructureStandard: C2.1 Construction

Comment: When designed as specified in sections 7.3 to 7.5, 9.3and 9.6 of these Front Sheets and the marked sections ofthe accompanying Detail Sheets, the products have sufficientstrength and stiffness to accept wind loads and to transferthem to the supporting structure.

Regulation: 12 Structural fire precautionsStandard: D4.1 Concealed spaces (cavities)Standards: D6.3, D6.4, D6.5 Distance of sides of buildings from boundaries: unprotected areas

Comment: The products are acceptable for use as dictated by the resultsand considerations included in sections 10.1 to 10.4 of theseFront Sheets.

Regulations: 17 and 18 Preparation of sites and resistance to moistureStandard: G3.1 Resistance to precipitation

Comment: The cladding panels will resist the passage of rainwater to thesupporting structure. See sections 11.1 to 11.3 of theseFront Sheets.

3 The Building Regulations (Northern Ireland) 1994 (as amended)

In the opinion of the BBA, Trespa Meteon Cladding Systems, if used inaccordance with the provisions of this Certificate, will satisfy orcontribute to satisfying the various Building Regulations as listed below.

Regulation: B2 Fitness of materials and workmanship

Comment: The products are acceptable. See section 13 of theseFront Sheets.

Regulation: C5 Resistance to ground moisture and weather

Comment: The cladding panels will resist the passage of rainwater tothe supporting structure. See sections 11.1 to 11.3 of theseFront Sheets.

Regulation: D2 Stability

Comment: When designed as specified in sections 7.3 to 7.5, 9.3and 9.6 of this Certificate and the marked sections of theaccompanying Detail Sheets, the products have sufficientstrength and stiffness to accept wind loads and to transferthem to the supporting structure.

Regulation: E8 External fire spread

Comment: The products are acceptable for use as dictated by the resultsand considerations included in sections 10.1 to 10.4 of theseFront Sheets.

continued

• The products are marketed inthe UK by Trespa UK Limited,Grosvenor House, HollinswoodRoad, Central Park, Telford,Shropshire TF2 9TW,Tel: 01952 290707,Fax: 01952 290101.• Confirmation of a DutchAgrément Certificate issued byIntron Certification on1st January 1995.Note: Detail Sheet 3 is not included inthe Dutch Agrément Certificate.

These Front Sheets, which provideinformation common to all parts ofthe system together with specificinformation on the Trespa MeteonPanels, must be read in conjunctionwith the accompanying DetailSheets, giving details of fixingmethods.

4 Construction (Design and Management) Regulations 1994

Information in this Certificate may assist the client, planning supervisor,designer and contractors to address their obligations under these Regulations.See section: 8 Practicability of installation of these Front Sheets.

Technical Specification

5 Description5.1 Trespa Meteon Cladding Systems comprisepanels fixed to buildings via conventional timberbattens or specific aluminium sub-frames andprovide a protective and decorative facing forexternal applications.

5.2 The panels are formed under high temperatureand pressure from thermosetting resins,homogeneously reinforced with cellulose fibres.During the manufacturing process a pigmenteddecorative surface layer is integrated into theproducts.

5.3 The Trespa Meteon panels are available intwo grades, standard and FR (fire resistant).

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5.4 The panels are available in three standardsizes (shown below) and four thicknesses (seeTable 1):1530 mm x 3050 mm1860 mm x 2550 mm1860 mm x 3650 mm

Table 1 Panel thicknesses and weights

Nominal thickness (mm) Weight (kgm–2)

6 8.48 11.2

10 14.013 18.2

5.5 The panels are available in a range of coloursmade up from approved base pigments.

5.6 Strength characteristics of the panels are:modulus of elasticity � 8000 Nmm–2

tensile strength � 90 Nmm–2

flexural strength � 110 Nmm–2

5.7 Fixings and a particular aluminium sub-framesystem are covered in the accompanying DetailSheets. Other sub-frame systems, trims and ancillaryitems are outside the scope of this Certificate.

5.8 Factory production control of the panels at theTrespa factory in Holland is monitored byBDA-Intron BV.

6 Delivery and site handling6.1 Panels are stacked on pallets, packed inplastic sheets and banded. Every full-size panelcarries a label bearing the manufacturer’s nameand production batch number and a label bearingthe BBA identification mark incorporating thenumber of this Certificate.

6.2 The panels and ancillary items must be storedin a dry store room away from damp areas and innormal ambient conditions.

6.3 Stacked panels should be stored horizontallyon a flat surface. A protective sheet must be placedbetween panels and the stack covered to protectagainst the ingress of foreign particles between thepanels.

6.4 To avoid scratching, each panel must be liftedup clear of the remaining stack, and not slid acrossunderlying panels.

Design Data

7 General7.1 Trespa Meteon panels are suitable for fixingto the studs of a timber-frame building via timberbattens, and to masonry or concrete walls, viatimber battens or an aluminium sub-frame. Thefixing of timber battens or an aluminium sub-frameto the substructure is outside the scope of thisCertificate.

7.2 The designer should ensure that the strengthand integrity of the intended substrate iscommensurate with that required of the claddingsystem (see sections 7.3 and 7.4).

7.3 Masonry or concrete to which thesupport work and cladding are fixed shouldbe structurally sound and have been

constructed in the conventional manner inaccordance with one or more of the followingtechnical specifications:(1) BS 5628 : Part 1 : 1992 and BS 5628 :Part 3 : 1985

(2) BS 8110 : Parts 1 and 2 : 1985

(3) Section 1, Part C of Approved Document A1/2to the Building Regulations (England and Wales)

(4) The Small Buildings Guide, for compliancewith Part C of the Technical Booklet for compliancewith the Building Standards (Scotland) Regulations

(5) Technical Booklet D Structure, to the BuildingRegulations (Northern Ireland).

7.4 Timber stud walls and timber support workshould be structurally sound and have beenconstructed in accordance with BS 5268 : Part 2 :1996 and preservative treated in accordance withBS 5268 : Part 5 : 1989. Studding and framingshould be adequately supported by noggings toensure rigidity. Where timber stud walls or battensare preservative treated with copper/chrome/arsenic, care must be taken to ensure that sufficienttime is allowed for complete fixation of thepreservative (approximately seven days) before thecladding is secured.

7.5 Aluminium subframes should be constructed inaccordance with BS 8118 : Part 1 : 1991.

7.6 Panels may undergo hygrothermal movementup to 2.5 mm per metre in both length and width.A 10 mm gap between panels is recommended toaccommodate any such movement.

7.7 To prevent damage to the external wallresulting from condensation in the cavity and/orrain penetration behind the cladding, ventilationshould be provided as follows:• a continuous 20 mm cavity behind the cladding• a minimum of 5000 mm2 per metre ventilationopenings at the top and bottom of the installationabove and below window/door openings, andcuts into any horizontal battens. At least onedimension of the ventilation openings should not begreater than 10 mm to restrict the ingress of vermin.Additional ventilation is required for vertical runsexceeding 20 m and for buildings with high internalrelative humidity (see section 11.1). Particular careneeds to be taken to ensure that adequateventilation in accordance with BS 5250 : 1989, isprovided behind cladding attached to horizontaltimber battens fixed directly to the substrate.

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8 Practicability of installationTrespa Meteon Cladding Systems are easy to installby competent trained operatives under normal siteconditions using equipment and techniquescommonly used for claddings. However, careneeds to be exercised when installing claddingpanels above ground-floor level.

9 Strength and stabilityWind loading9.1 Trespa Meteon Cladding Systems must bedesigned by chartered civil or structural engineersor other suitably qualified persons.

9.2 Where increased strength and stability arerequired, consideration should be given toreducing the spacing of the fixings and supportingframe members.

9.3 The panels should be installed inaccordance with the wind load/spangraphs given in Figure 1, based on a

limiting deflection of span/200 and a safety factorof 10 over ultimate panel failure. Wind loadsshould be calculated in accordance withBS 6399 : Part 2 : 1995.

Figure 1 Wind load — panel span data

9.4 Information on the fixings is given in theaccompanying Detail Sheet.

9.5 The panels should not be taken into accountwhen designing a timber stud wall to resist rackingforces.

Impact strength9.6 The panels have adequate resistance tothe hard and soft body impacts likely tooccur in practice and are satisfactory for use

in the locations described in categories B to F ofBS 8200 : 1985.

10 Behaviour in relation to fire10.1 When tested in accordance withBS 476 : Part 6 : 1989 for fire propagation,and BS 476 : Part 7 : 1987 for surface

spread of flame, the panels achieved the resultsshown in Table 2.

Table 2 Fire test data

Fire test Panel grade

Standard FR

Surface spread of flame rating 2 1

Fire propagation indices I 19.0 9.8i1 1.0 0.8i2 13.1 4.6i3 4.9 4.4

10.2 On the evidence of the results shown inTable 2 the FR panels meet the Class 0requirements of the UK Building Regulations.

10.3 When determining the minimum distancebetween the sides of a building and the relevantboundary, any area of wall (with the appropriatefire resistance) covered by a combustible claddingis counted as an unprotected area amounting tohalf the actual area of the cladding.

10.4 Due consideration should always be givento any combustible materials behind the claddingwhich may become exposed in the event of a fire.Cavity barriers should be incorporated behind thecladding as required under the relevant buildingregulations.

11 Air and water penetration11.1 Trespa Meteon Cladding Systems aresuitable for use as drained and back-ventilated rainscreen provided:

• adequate ventilation is allowed in accordancewith BS 8200 : 1985 and BS 5250 : 1989 (seesection 7.7)• vertical runs do not exceed 20 m without theaddition of further ventilation points, equivalent to5000 mm2 openings per horizontal metre run• where internal relative humidity conditions in abuilding exceed 65% (maximum normal domestic)and where a wall does not incorporate vapourchecks, additional ventilation openings (minimum

300 400350 450 550 650 750 850 950 1050 1150

500 600 700 800 900 1000 1100 1200

210020001900180017001600150014001300120011001000900800700600

panel span (mm)

deflection for 2 supports (F=L/200)

6 mm 8 mm 10 mm 13 mm

300 400350 450 550 650 750 850 950 1050 1150

500 600 700 800 900 1000 1100 1200

210020001900180017001600150014001300120011001000900800700600

panel span (mm)

perm

issib

le w

ind

load

(Nm

)�

2pe

rmiss

ible

win

d lo

ad (N

m)

�2

deflection for more than 2 supports (F=L/200)

6 mm 8 mm 10 mm 13 mm

4

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5000 mm2 per horizontal metre run) should beprovided at vertical spacings of 8 m (maximum)• provision must be made for water penetrating thecladding to drain away at the base.

11.2 The use of a vapour-permeable water barrieris recommended when the cladding is installed ona wall not fully watertight.

11.3 When insulation is incorporated behindopen-jointed cladding (see section 14.3), thethermal resistance of the insulation may be reducedas it becomes wet. For these installations the use ofa vapour-permeable water barrier in front of theinsulation should be considered.

12 MaintenanceThe maintenance of the systems is generally lowunder normal climatic conditions. Where soilingoccurs the panels may be cleaned with soap andwater. Strong alkaline or abrasive cleaners shouldbe avoided.

13 DurabilityThe product will perform effectively as acladding system with an ultimate life of atleast 30 years and a decorative life of at

least 15 years in heavily polluted areas and atleast 20 years in other areas. The decorative lifefor dark colours may be reduced if used inexposed conditions.

Installation

14 General14.1 Installation must be carried out inaccordance with the manufacturer’s instructions.

14.2 A minimum 10 mm wide gap must beallowed between all panel edges to accommodatehygrothermal movement (see section 7.6).

14.3 Panels may be joined with open or closedjoints (see Figure 2). Closed joints may beachieved by use of a metal, plastic or rubbersealing strip behind adjoining panels, a tongue-and-groove joint, a half-lapped joint (panel

thickness 8 mm minimum), or a cover trim. For alljoints the manufacturer’s recommendations must beobserved. Care must be taken to ensure that theclosed jointing does not restrict panel movement.The use of sealants around the joints is notrecommended.

14.4 Fixing details are given in theaccompanying Detail Sheets.

Figure 2 Joints

5

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Technical Investigations

The following is a summary of the technicalinvestigations carried out on the Trespa Meteonpanels.

15 Tests15.1 An examination was made of test datarelating to:surface spread of flamefire propagation.

15.2 In the assessment leading to the issue of theDutch Agrément Certificate an examination wasmade of:hard and soft body impact strengthUV resistance and colour fastnessSO2 resistanceswelling and water absorptionmodulus of elasticity with four-part bending.

16 Investigations16.1 An inspection of the manufacturing operationand quality control procedures was undertaken byBDA-Intron B.V.

16.2 Under the assessment leading to the issue ofCertificate No 91/2628 the followinginvestigations were carried out:site visits to assess performance in use and

practicability of installationevaluation of the effectiveness of the system as a

back-ventilated rainscreen with open or closedjoints.

An examination was made of independent datarelating to:hygrothermal behaviouremission of toxic substancesdurability.

Bibliography

BS 476 Fire tests on building materials andstructures

Part 6 : 1989 Method of test for fire propagationfor productsPart 7 : 1987 Method for classification of thesurface spread of flame of products

BS 5250 : 1989(1995) Code of practice forcontrol of condensation in buildings

BS 5268 Structural use of timberPart 2 : 1996 Code of practice for permissiblestress design, materials and workmanshipPart 5 : 1989(1997) Code of practice for thepreservative treatment of structural timber

BS 5628 Code of practice for use of masonryPart 1 : 1992 Structural use of unreinforcedmasonryPart 3 : 1995 Materials and components, designand workmanship

BS 6399 Loading for buildingsPart 2 : 1995 Code of practice for wind loads

BS 8110 Structural use of concretePart 1 : 1985 Code of practice for design andconstructionPart 2 : 1985 Code of practice for specialcircumstances

BS 8118 Structural use of aluminiumPart 1 : 1991 Code of practice for design

BS 8200 : 1985 Code of practice for design ofnon-loadbearing external vertical enclosures ofbuildings

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Conditions of Certification

17 Conditions17.1 This Certificate:(a) relates only to the product that is described,installed, used and maintained as set out in thisCertificate;(b) is granted only to the company, firm or personidentified on the front cover — no other company,firm or person may hold or claim any entitlement tothis Certificate;(c) has to be read, considered and used as awhole document — it may be misleading and willbe incomplete to be selective;(d) is copyright of the BBA.

17.2 References in this Certificate to any Act ofParliament, Regulation made thereunder, Directiveor Regulation of the European Union, StatutoryInstrument, Code of Practice, British Standard,manufacturers’ instructions or similar publication,shall be construed as references to such publicationin the form in which it was current at the date ofthis Certificate.

17.3 This Certificate will remain valid for anunlimited period provided that the product and themanufacture and/or fabricating process(es) thereof:(a) are maintained at or above the levels whichhave been assessed and found to be satisfactoryby the BBA;

(b) continue to be checked by the BBA or itsagents; and(c) are reviewed by the BBA as and when itconsiders appropriate.

17.4 In granting this Certificate, the BBA makesno representation as to:(a) the presence or absence of any patent orsimilar rights subsisting in the product or any otherproduct;(b) the right of the Certificate holder to market,supply, install or maintain the product; and(c) the nature of individual installations of theproduct, including methods and workmanship.

17.5 Any recommendations relating to the use orinstallation of this product which are contained orreferred to in this Certificate are the minimumstandards required to be met when the product isused. They do not purport in any way to restate therequirements of the Health & Safety at Work etcAct 1974, or of any other statutory, common lawor other duty which may exist at the date of thisCertificate or in the future; nor is conformity withsuch recommendations to be taken as satisfying therequirements of the 1974 Act or of any present orfuture statutory, common law or other duty of care.In granting this Certificate, the BBA does notaccept responsibility to any person or body for anyloss or damage, including personal injury, arisingas a direct or indirect result of the installation anduse of this product.

7

In the opinion of the British Board of Agrément, Trespa Meteon Cladding Systems are fit for theirintended use provided they are installed, used and maintained as set out in this Certificate.Certificate No 99/3629/C is accordingly awarded to Trespa International B.V.

On behalf of the British Board of Agrément

Date of issue: 17th August 1999 Chief Executive

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British Board of AgrémentP O Box No 195, Bucknalls LaneGarston, Watford, Herts WD25 9BAFax: 01923 665301

©1999For technical or additional information,contact the Certificate holder (seefront page).For information about the AgrémentCertificate, including validity andscope, tel: Hotline 01923 665400,or check the BBA website.

e-mail: mail@bba.star.co.ukwebsite: www.bbacerts.co.uk

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Technical Specification

1 Description1.1 Standard fixings include:• visible screw fixings to timber battens (see Figure 1)• visible rivet fixings to aluminium sub-frames (seeFigure 2)• invisible fixings for use where aluminium hookslocate onto aluminium rails, which are attached tothe substrate by battens or an aluminium sub-frame(see Figure 3).

1.2 Two types of screw are approved for fixing thepanels to timber battens, a powder-coated screwfor quick assembly and a self-centreing screw witha separate washer and cap. The cover caps andpowder-coated screws are available in colours tomatch the panel (see Figure 1 and Table 1).

1.3 Aluminium or stainless steel rivets areavailable for fixing panels to an aluminium sub-frame (see Figure 2 and Table 2). Powder-coatedrivets or coloured caps are available to match thecolour of the panel.

1.4 Two types of invisible fixings are approved forfixing 8, 10 and 13 mm thick panels via aluminiumhooks onto aluminium rails. One, an expandingplug fixing, and the other, a self-tapping screw (seeFigure 3 and Table 3). The hooks and aluminiumrails are outside the scope of the Certificate.

2 Delivery and site handlingFixings are delivered to site in boxes of between100 and 500 units, each box bearing a Trespalabel with the product identification and colour code.

Design Data

3 General3.1 Timber battens to which panels are fixed mustbe a minimum size of 34 mm by 75 mm at the joinof two panels and 34 mm by 45 mm at the end ormid-panel. The recommended practice is to alignthe battens vertically to optimise ventilation anddrainage behind the panel (see Figure 1). Wherethe panels are attached to horizontal battens fixeddirectly to the substrate, ventilation slots, equivalentto a minimum 5000 m2 per metre run, must be cutinto the battens (see section 7.7 of the Front Sheets).

3.2 Where panels are fixed to timber battens, thefixings must be arranged as shown in Figure 4.Screws must be placed centrally in the holes,allowing 1.5 mm clearance around each screw.

3.3 Where panels are riveted to an aluminiumsub-frame, the fixings must be arranged in the sameway as for timber battens. With rivets there must beat least one fixed point per panel (hole diameter5.1 mm), others being expansion points (hole diameter10 mm) (see Figure 5). Where there are two fixedadjacent points, the hole diameter should be 6 mm.

3.4 Fixings to aluminium rails via hooks can onlybe used with 8 mm, 10 mm and 13 mm thickpanels. Aluminium brackets are fixed onto the backof the panel with either an expanding plug or aself-tapping screw (see Figure 3). The positioning ofthe fixings behind the panel is shown in Figure 6.The top row of fixings comprises a central bracketfixed securely to the aluminium support rail and twoouter brackets incorporating screws to adjust the

• THIS DETAIL SHEET RELATES TO THE STANDARD FIXINGS FOR USEWITH TRESPA METEON PANELS.• It is essential that the fixings are installed in accordance with themanufacturer’s instructions and the requirements of this Certificate.• The fixing of timber battens and aluminium sub-frames to the substrate isoutside the scope of this Detail Sheet, as are the hook connections whichform a part of the invisible-fix system.• The fixings are part of a Dutch Agrément Certificate relating to TrespaMeteon panels issued by Intron Certification on 1st January 1995.

This Detail Sheet must be read in conjunction with the Front Sheets, which givethe product’s position regarding the Building Regulations, information common toall parts of the systems, specific information on Trespa Meteon panels, and theConditions of Certification.

Certificate No 99/3629/C

DETAIL SHEET 2Trespa International B.V.

FIXINGS

Product

CI/SfB

(41) Xh

Readers are advised to check the validity of this Detail Sheet by either referring to the BBA’s website (www.bbacerts.co.uk) or contactingthe BBA direct (Telephone Hotline 01923 665400).

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level of the panel. Other fixings use the standardbracket and allow movement in the panel.

3.5 Provision must be made for the thermalmovement of aluminium sections behind thecladding.

Figure 1 Visible screw fixings to timber battens

Table 1 Screws(1) for timber battens — visible fix

Characteristics (mm) Self-centreing screw Powder-coatedwith cover cap screw

(6, 8, 10 mm panels only)

Length 36 min 36Screw diameter 4 4.8Head diameter 9 12Diameter of washer 11.4 —Hole diameter 7 8(1) Material: A2/A4 stainless steel to BS EN 10088-1 : 1995grades 1.4301, 1.4401).

Figure 2 Visible rivet fixings to aluminium sub-frames

Table 2 Rivets(1) for aluminium sub-frame — visible fix

Characteristics (mm) Rivet

Length Panel thickness and metal thickness + minimum 5Diameter 5Head diameter 14 (with cover cap): 16 (powder coated)Hole diameter 10 — expansion hole

5.1 — fixed hole(1) Material: A1 Mg5 aluminium to BS EN 573-3 : 1995 or A2/A4 stainlesssteel to BS EN 10088-1 : 1995 (grades 1.4301, 1.4401).

Table 3 Fixings for aluminium sub-frame — invisible-fix

Characteristics (mm) Expanding plug Self-tapping screw(2)

Lengthfor panel thickness 8 5.5 9.5

10 7.5 11.513 10.5 14.5

Diameter plug(1) 8 6screw(2) M6

Head diameter 10.0 12.0Hole diameter 8 5.0Hole depth:for panel thickness 8 5.5 5

10 7.5 713 10.5 10

(1) Brass.(2) A2/A4 stainless steel to BS EN 10088-1 : 1995 (grade 1.4301, 1.4401).

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Figure 3 Invisible fixings for use where hooks locateonto aluminium rails*

*See also Figure 6 showing hook detail.

4 Strength and stabilityPermissible tensile forces on panel fixings are givenin Table 4.

Table 4 Permissible tensile forces(1) on panel fixings (N)

Panel Visible-fix(2) Invisible-fixthickness (mm) Fixing position Expansion Self-tapping

centre edge corner plug screw

6 600 450 360 — —8 600 600 600 350 550

10 600 600 600 500 45013 600 600 600 800 1750

(1) All values include a material safety factor of 2 and, for the invisible fixings, anadditional factor of 2 to allow for the eccentricity of the force on the hooked fixing.

(2) Screws to timber, rivets to aluminium.

Installation5 General5.1 Installation must be carried out in accordancewith the manufacturer’s instructions.5.2 Panels should be installed from bottom to top.5.3 Screws and rivets must be placed centrally intheir holes. Screws should not be over-tightenedand a 0.3 mm space should be left between rivethead and panel by using a pressure plate on theblind riveter. A gun with a special nosepiece isavailable for this purpose.5.4 When fixing a panel with rivets, a steppeddrill can be used to make a 5 mm hole in thealuminium rail and a 10 mm expansion hole in thepanel.5.5 Adequate provision must be made forhygrothermal movement of panels and ventilationand drainage behind the cladding, as detailed insections 7.6, 7.7 and 11.4 of the Front Sheets.

3

Figure 4 Fixing into timber battens

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Figure 5 Rivet fixing into aluminium sub-frame

Figure 6 Invisible-fix — fixing arrangements

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5

Technical Investigations

The following is a summary of the technicalinvestigations carried out on the standard fixingsfor use with Trespa Meteon panels.

6 TestsUnder the assessment leading to the issue ofCertificate No 91/2628, tests were carried outby KIWA NV to determine the strength of fixings.

7 Investigations7.1 Under the assessment leading to the issue ofCertificate No 91/2628 an evaluation was madeof the durability and design strength of fixings.7.2 Under the assessment leading to the issue ofthe Dutch Agrément Certificate an evaluation wasmade of the durability and design strength offixings.

Bibliography

BS EN 573 Aluminium and aluminium alloys.Chemical composition and form of wroughtproductsBS EN 573-3 : 1995 Chemical composition

BS EN 10088 Stainless steelsBS EN 10088-1 : 1995 List of stainless steels

On behalf of the British Board of Agrément

Date of issue: 17th August 1999 Chief Executive

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6

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7

BLANK PAGE

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British Board of AgrémentP O Box No 195, Bucknalls LaneGarston, Watford, Herts WD25 9BAFax: 01923 665301

©1999For technical or additional information,contact the Certificate holder (seefront page).For information about the AgrémentCertificate, including validity andscope, tel: Hotline 01923 665400,or check the BBA website.

e-mail: mail@bba.star.co.ukwebsite: www.bbacerts.co.uk

Electronic Copy

Technical Specification

1 Description1.1 System 700 is an aluminium sub-frame systemfor supporting Trespa Meteon panels. It is primarilyintended for use in high rise overcladdingapplications.

1.2 The components of the system are detailed inTable 1 and shown in Figure 1. The fixings arelisted in Table 2.

1.3 Wall brackets are available:• in two depths to accommodate varyingthicknesses of insulation behind the cladding, whilstmaintaining the required 20 mm ventilationpathway (see Front Sheets, section 7.7)• with an 8 mm diameter round hole for tight fixingand an 8 mm by 28 mm elongated hole forexpansion fixing.

Table 1 System 700 Components

Dimensions (mm)Component length width depth thickness

Wall bracket(1) 100 53 72 3.5122

Vertical T-rail(1) variable 125 (at flange) 75 346.3 (at box section)

Vertical box rail(a T-rail withoutflange)(1) variable 46.3 75 3Spigot box end(1) 200 40 40 2.5Trimmer (typical)(1) variable 50.8 76.2 3.18End plates(2) 150 80 — 3PVC-U self-adhesive tape variable 45, 125 — 3

(1) 6063A T6 aluminium alloy to BS 1474 : 1987(2) 1200 H14 aluminium alloy to BS 1470

Table 2 Fixings

Fixing between Description

Vertical T-rail — wall bracket Stainless steel M8 x 70 mm bolt,stainless steel full nut,stainless steel washer,nylon washer.

Vertical T-rail — spigot box end Self-drilling screw with EPDM washer

Vertical T-rail — trimmer Self-drilling screw with EPDM washer

Vertical box rail — trimmer rail Self-drilling screw with EPDM washer

1.4 The internal faces of the wall brackets and theexternal faces of the vertical rails are serrated toallow correct positioning of the rails prior to fixing.

1.5 T-rails are supplied pre-fixed to a spigot boxat one end.

1.6 A frame section comprising horizontaltrimmers and vertical box rails is pre-fabricated atthe factory for use between window openings. Endplates are welded to the ends of both trimmers andbox rails before the box rails are screwed to thetrimmers through their end plates.

1.7 A range of trims (eg base plate, corner trims,window pods, h-profile for closing the horizontaljoint between panels) is available for use with thesystem but is outside the scope of this Certificate.

1.8 Fire-break plates for use with a nose plate atthe horizontal joint between panels at each floorlevel are also available, but are outside the scopeof this Certificate.

1.9 Aluminium sections are manufactured tospecification by conventional extrusion techniques.Critical dimensions are monitored regularly.

• THIS DETAIL SHEET RELATES TO SYSTEM 700, AN ALUMINIUMSUB-FRAME SYSTEM TO WHICH TRESPA METEON CLADDINGPANELS MAY BE FIXED.• It is essential that the system is installed in accordance with themanufacturer’s instructions and the requirements of this Certificate.

This Detail Sheet must be read in conjunction with the Front Sheets, which givethe product’s position regarding the Building Regulations, information common toall parts of the system, specific information on Trespa Meteon panels and theConditions of Certification; and Detail Sheet 2, which includes information on theriveting of panels to sub-frames.

Certificate No 99/3629/C

DETAIL SHEET 3Trespa International B.V.

SYSTEM 700

Product

CI/SfB

(41) Hh4

Readers are advised to check the validity of this Detail Sheet by either referring to the BBA’s website (www.bbacerts.co.uk) or contactingthe BBA direct (Telephone Hotline 01923 665400).

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Figure 1 System 700 Components

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Design Data

3 General3.1 The sub-frame system should be designed byappropriately qualified and experienced persons inaccordance with the general requirementsspecified in the Front Sheets and Detail Sheet 2 ofthis Certificate. They will need to specify themethod of fixing wall brackets to the substrate,which is outside the scope of this Certificate.

3.2 The coefficient of linear expansion ofaluminium is 23 x 10–6. A minimum 15 mm gapbetween vertical rails is recommended toaccommodate thermal movement.

4 Strength and stabilitySystem 700 is a suitable sub-frame support system forTrespa Meteon panels. For each application abespoke sub-frame system must be designed inaccordance with CP 118 : 1969 or BS 8118 : 1991.

Installation

5 General5.1 Installation must be carried out in accordancewith the manufacturer’s instructions.

5.2 Installation details are shown in Figure 1.

5.3 When a fire-break system is incorporated intothe sub-frame, care must be taken to ensure that theventilation run behind the cladding is not obstructed(see section 7.7 of the Front Sheets). The fire-breakplate must slope slightly towards the outer face toallow water penetrating behind the cladding todrain away from the insulation or substrate wall.

6 Procedure6.1 Alternate tight and elongated hole wall bracketsare fixed to the substrate at each floor level.

6.2 Vertical rails (with a spigot box section fixedinto an end) are slotted into the serrations in the

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wall bracket and fixed with a through bolt. Thevertical rails normally cover two floors (5.3 m) witha tight fixing to the central bracket and expansionfixings at the two ends. The open end of the nextrail is fitted over the spigot box end of the previousrail, leaving an expansion gap of 15 mm(minimum) between rails.

6.3 A strip of the PVC-U self-adhesivecompressible tape is run down the face of allvertical rails to prevent panel `drumming’.

6.4 In between window openings in the wall, apre-fabricated frame (see section 1.6) is fixed tovertical T-rails by screwing through the trimmer endplates.

6.5 Panels are riveted to the face of the verticalrail sections by the standard procedure describedin Detail Sheet 2.

Technical Investigations

7 Investigations7.1 A site visit was undertaken to assess thepracticability of installation.

7.2 Calculations were made to check the strengthof the system.

7.3 An assessment was made of:factory production controldurability.

Bibliography

BS 1474 : 1987 Specification for wroughtaluminium and aluminium alloys for generalengineering purposes: bars, extruded round tubesand sections

BS 8118 Structural use of aluminium designPart 1 : 1991 Code of practice for designPart 2 : 1991 Specification for materials,workmanship and protection

CP 118 : 1969 The structural use of aluminium

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On behalf of the British Board of Agrément

Date of issue: 17th August 1999 Chief Executive

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British Board of AgrémentP O Box No 195, Bucknalls LaneGarston, Watford, Herts WD25 9BAFax: 01923 665301

©1999For technical or additional information,contact the Certificate holder (seefront page).For information about the AgrémentCertificate, including validity andscope, tel: Hotline 01923 665400,or check the BBA website.

e-mail: mail@bba.star.co.ukwebsite: www.bbacerts.co.uk

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