12
Readers are advised to check the validity of this Certificate by either referring to the BBA’s website (www.bbacerts.co.uk) or contacting the BBA direct (Telephone Hotline 01923 665400). 1 The Building Regulations 2000 (as amended) (England and Wales) The Secretary of State has agreed with the British Board of Agrément the aspects of performance to be used by the BBA in assessing the compliance of building systems with the Building Regulations. In the opinion of the BBA, buildings constructed using the Rollalong LiNX Relocatable Building System, if used in accordance with the provisions of this Certificate, will meet or contribute to meeting the relevant requirements. Requirement: A1 Loading Comment: The buildings will have adequate strength and stability. See sections 8.1 to 8.8 of this Certificate. Requirement: A2 Ground movement Requirement: B2 Internal fire spread (linings) Requirement: B3(1)(4) Internal fire spread (structure) Requirement: B4(1)(2) External fire spread Comment: The buildings will meet the relevant requirements within the limitations set out in this Certificate. See sections 9.2 to 9.6 of this Certificate. Rollalong Ltd Woolsbridge Industrial Park Three Legged Cross Wimborne Dorset BH21 6SF Tel: 01202 824541 Fax: 01202 826525 e-mail: [email protected] website: www.rollalong.co.uk Building System Agrément Certificate No 05/4265 Designated by Government to issue European Technical Approvals ROLLALONG LiNX RELOCATABLE BUILDING SYSTEM Système pour constructions Bausystem Product Regulations • THIS CERTIFICATE RELATES TO THE ROLLALONG LiNX RELOCATABLE BUILDING SYSTEM. • The system is for use as single- storey educational, office, institutional, barracks and non-residential accommodation other than dwellings. The Certificate holder offers adaptations to the system for the construction of buildings up to three storeys, but these have not been assessed by the BBA. • This assessment does not cover internal partitions, staircases, windows, doorsets, fittings and raised access floors or the adequacy of the plumbing, drainage and electrical services supplied with the buildings or the ventilation of bathrooms and rooms containing sanitary conveniences, which will vary according to use. CI/SfB 81 continued Specifiers shall ensure for each building constructed using the system that plan form, internal subdivision, siting of the buildings, access for people, access for fire services, glazing safety and means of warning and escape in case of fire, comply with the relevant Building Regulations’ requirements.

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Page 1: CI/SfB Rollalong Ltd

Readers 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).

1 The Building Regulations 2000 (as amended) (England and Wales)

The Secretary of State has agreed with the British Board of Agrémentthe aspects of performance to be used by the BBA in assessing thecompliance of building systems with the Building Regulations. In the

opinion of the BBA, buildings constructed using the Rollalong LiNX RelocatableBuilding System, if used in accordance with the provisions of this Certificate,will meet or contribute to meeting the relevant requirements.Requirement: A1 Loading

Comment: The buildings will have adequate strength and stability. Seesections 8.1 to 8.8 of this Certificate.

Requirement: A2 Ground movementRequirement: B2 Internal fire spread (linings)Requirement: B3(1)(4) Internal fire spread (structure)Requirement: B4(1)(2) External fire spread

Comment: The buildings will meet the relevant requirements within thelimitations set out in this Certificate. See sections 9.2 to 9.6 ofthis Certificate.

Rollalong LtdWoolsbridge Industrial ParkThree Legged CrossWimborneDorset BH21 6SFTel: 01202 824541 Fax: 01202 826525e-mail: [email protected]: www.rollalong.co.uk

Building SystemAgrément Certificate

No 05/4265

Designated by Governmentto issue

European TechnicalApprovals

ROLLALONG LiNX RELOCATABLE BUILDING SYSTEMSystème pour constructionsBausystem

Product

Regulations• THIS CERTIFICATE RELATES TOTHE ROLLALONG LiNXRELOCATABLE BUILDINGSYSTEM.• The system is for use as single-storey educational, office,institutional, barracks andnon-residential accommodationother than dwellings. TheCertificate holder offersadaptations to the system for theconstruction of buildings up tothree storeys, but these have notbeen assessed by the BBA.• This assessment does not coverinternal partitions, staircases,windows, doorsets, fittings andraised access floors or theadequacy of the plumbing,drainage and electrical servicessupplied with the buildings or theventilation of bathrooms androoms containing sanitaryconveniences, which will varyaccording to use.

CI/SfB

81

continued

Specifiers shall ensure for each building constructed using the system thatplan form, internal subdivision, siting of the buildings, access for people,access for fire services, glazing safety and means of warning andescape in case of fire, comply with the relevant Building Regulations’requirements.

Page 2: CI/SfB Rollalong Ltd

2

Requirement: C2(a)(c) Resistance to moisture

Comment: The buildings are acceptable. See sections 13.1, 13.2, 13.4and 13.5 of this Certificate.

Requirement: L2(a) Buildings other than dwellings

Comment: The building fabric adequately limits heat loss. Seesections 10.2 and 10.3 of this Certificate.

Requirement: Regulation 7 Materials and workmanship.

Comment: The buildings are acceptable. See section 16.1 of thisCertificate.

2 The Building (Scotland) Regulations 2004In the opinion of the BBA, the buildings described in this Certificatesatisfy or contribute to satisfying the various Regulations and relatedMandatory Standards as listed below.

Regulation: 8 Fitness and durability of materials and workmanshipRegulation: 8(1) Fitness and durability of materials and workmanship

Comment: The system panels can contribute to a construction satisfying thisRegulation. See section 16.1 and the Installation part of thisCertificate.

Regulation: 9 Building standards — constructionStandard: 1.1(2) Structure

Comment: Buildings incorporating the system will have sufficient strengthand stiffness when designed and constructed in accordancewith sections 8.1 to 8.8 of this Certificate, with reference toclause 1.1.1(1).

Standard: 2.3 Structural protection

Comment: Walls using the appropriate lining can achieve a period of fireresistance of short duration, with reference to clauses 2.3.1(1) to2.3.5(1). See sections 9.2 to 9.5 and 9.7 of this Certificate.

Standard: 2.5 Internal linings

Comment: Walls and ceiling surfaces can satisfy this Standard, withreference to clause 2.5.1(1). See section 9.5 of this Certificate.

Standard: 2.6 Spread to neighbouring buildings

Comment: External walls can satisfy the relevant requirements of thisStandard, with reference to clause 2.6.1(1). See section 9.4 ofthis Certificate.

Standard: 2.8 Spread from neighbouring buildings

Comment: Roofs can satisfy this Standard, with reference to clauses 2.8.1(1)

and 2.8.2(1). See section 9.7 of this Certificate.Standard: 3.4 Moisture from the groundStandard: 3.10 Precipitation

Comment: The buildings are acceptable, with reference to clause3.10.1(1). See sections 13.1, 13.2, 13.4 and 13.5 of thisCertificate.

Standard: 6.2 Building insulation envelope

Comment: The building fabric will adequately limit heat loss to satisfy thisStandard, with reference to clauses 6.2.1(1), 6.2.4(1) and6.2.5(1). See sections 10.2 to 10.3 of this Certificate.(1) Technical Handbook (Non-domestic).

3 The Building Regulations (Northern Ireland) 2000In the opinion of the BBA, the buildings described in this Certificate arecapable of satisfying the Building Regulations (Northern Ireland) 2000with regard to the following matters, subject to the qualifications

contained in this Certificate.Regulation: B2 Fitness of materials and workmanship

Comment: The buildings are acceptable. See section 16.1 of this Certificate.Regulation: C4 Resistance to ground moisture and weather

Comment: The buildings are acceptable. See sections 13.1, 13.2, 13.4and 13.5 of this Certificate.

Regulation: D1 Stability

Comment: The buildings will have adequate strength and stability. Seesections 8.1 to 8.8 of this Certificate.

Regulation: E3 Internal fire spread — LiningsRegulation: E4 Internal fire spread — StructureRegulation: E5 External fire spread

Comment: The buildings will meet the relevant regulations within thelimitations set out in this Certificate. See sections 9.2 to 9.6 ofthis Certificate.

Regulation: F2 Building fabric

Comment: The buildings are acceptable. See sections 10.2 and 10.3 ofthis Certificate.

continued

• The system is relocatable andextendable, and can be used toconstruct buildings with a varietyof plan forms.• The steel structure frameworkhas a minimum life of 60 years.• The design life of the externalenvelope and internal finishes isbetween 20 and 60 years.

Page 3: CI/SfB Rollalong Ltd

Technical Specification

5 DescriptionGeneral5.1 This Certificate relates only to the form ofconstruction described below and in the RollalongLiNX Relocatable Building System TechnicalSpecification approved by the BBA, when appliedto single-storey buildings.

5.2 The Rollalong LiNX Relocatable Building Systemis based on a module consisting of a structural steelframework, composite timber-framed (with bracing asrequired), external-wall construction, galvanized,riveted floor and roof frame with infill softwoodframing. Mineral wool provides insulation to walls,floor and roof. Floor decking is of OSB. Vinyl-wrapped plasterboard is bonded to the internal faceof external walls and is screwed to the ceiling. Themodules incorporate a variety of wall constructions tosuit the location in the building (see Figure 1).

5.3 The modules are available in the standardrange of sizes given in Table 1.

5.4 The full specification and drawings for thematerials and components covered by thisCertificate have been examined and are retainedby the BBA. This section gives only general detailsof the system. Typical details are shown inFigures 2 to 6.

Figure 1 Typical Rollalong LiNX relocatable building

3

4 Construction (Design and Management) Regulations 1994 (as amended)Construction (Design and Management) Regulations (Northern Ireland)1995 (as amended)

Information in this Certificate may assist the client, planning supervisor,designer and contractors to address their obligations under these Regulations.See sections: 7 Delivery and site handling (7.1 and 7.2) and 19 Procedure

(19.2).

Table 1 Size range

Description Module type Floor External External External Internal Internal Internalarea length width height length width ceiling height(m2) (m) (m) (m) (m) (m) (m)

LiNX 120 End module 34.20 12.49 3.0 3.2 12.00 2.85 2.541.40 3.6 3.45

Mid module 36.00 12.49 3.0 3.2 12.00 3.00 2.543.20 3.6 3.60

LiNX 108 End Module 30.78 11.29 3.0 3.2 10.80 2.85 2.537.26 3.6 3.45

Mid module 32.40 11.29 3.0 3.2 10.80 3.00 2.538.88 3.6 3.60

LiNX 96 End module 27.36 10.09 3.0 3.2 9.60 2.85 2.533.12 3.6 3.45

Mid module 28.80 10.09 3.0 3.2 9.60 3.00 2.534.56 3.6 3.60

LiNX 84 End module 23.94 8.89 3.0 3.2 8.40 2.85 2.528.98 3.6 3.45

Mid module 25.20 8.89 3.0 3.2 8.40 3.00 2.530.24 3.6 3.60

LiNX 72 End module 20.52 7.69 3.0 3.2 7.20 2.85 2.524.84 3.6 3.45

Mid module 21.60 7.69 3.0 3.2 7.20 3.00 2.525.92 3.6 3.60

LiNX 60 End module 17.10 6.49 3.0 3.2 6.00 2.85 2.520.70 3.6 3.45

Mid module 18.00 6.49 3.0 3.2 6.00 3.00 2.521.60 3.6 3.60

Page 4: CI/SfB Rollalong Ltd

Figure 2 Details in plan Figure 3 Long wall section

colour coatedsteel fascia

mineral woolinsulation

colour coated steel,bonded to plywoodbracing

galvanized steel side rail

EDPM roof sheet, bondedto OSB sheet

galvanized steelcross joist

vinyl-wrappedplasterboard

galvanized steelcross joist

mineral woolinsulation

mineral woolinsulation

colour coatedsteel trim

floor decking

galvanized steelside rail

concrete slab

mortar

concrete pad

vinyl-wrappedplasterboard

vinyl-wrappedplasterboard

mineral woolinsulation

mineral woolinsulation

colourcoatedsteel trim

colourcoatedsteel trim

galvanized steelcorner column

galvanized steelcorner column

galvanized steelcorner column

air andwatertightcompressibletape

colour coatedsteel trim

colour coatedsteel, bondedto plywoodbracing

colour coated steel, bondedto plywood bracing

vinyl-wrappedplasterboard

mineral woolinsulation

4

Page 5: CI/SfB Rollalong Ltd

Figure 4 Short wall section Figure 5 Section through junction — two modulesjoined end to end

EDPM roof sheet,bonded to OSB sheet infill panel

colourcoatedsteel trim

galvanizedsteel crossjoist

mineral woolinsulationvinyl-wrapped

plasterboard

galvanizedsteel side rail

mineral woolinsulation

galvanizedsteel cross joist

timber subfloor

floor deckingair and watertightcompressible tape

mineral woolinsulation

vinyl-wrappedplasterboard

EDPM roof sheetbonded toOSB sheet

galvanized steel side rail

preformed gutterbehind colourcoated steel fascia

mineralwoolinsulation

colour coatedsteel, bondedto plywoodbracing

galvanized steelcorner column

preformed ventilatedcolour coated steelskirt

galvanized steelcross joist

floor decking

timbersub floor

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Page 6: CI/SfB Rollalong Ltd

Figure 6 Section through junction — two modulesjoined side by side

Structural frame5.5 The structural framing to each module consistsof 100 mm by 100 mm by 5 mm SHS cornercolumns bolted to cold rolled channel section edgebeams, of a depth to suit the span requirement,with M16 x 25 bolts. Columns and channels arebolted together. The external walls are notdesigned to carry vertical load but provideadditional racking resistance to the module. Theyprovide resistance to lateral (wind) load, transferringload through fixings to the structural frame.

5.6 Each column head has a top plate with a32 mm diameter, centrally-drilled clearance holewith an M30 nut welded onto the back to receivean eyebolt to allow the complete module to belifted by crane. Upper floor modules(1) have a pin

within the bottom of the columns to locate in theholes in the column heads of the lower modules.(1) Outside the scope of this Certificate.

Floors5.7 Floor framing is of hot-dipped galvanized(Z35 grade Fe E350G-coated G275 toBS EN 10326 : 2004) cold-formed channelsections used as both edge beams and cross-floorjoists. Connection is by M10 bolts and 6.6 mm by14.1 mm long steel Megagrip rivets.

5.8 Floor decking is water-resistant, 22 mm thickoriented strand board, type OSB3/4 toBS EN 300 : 1997, fixed to floor side rails using47 mm self-drilling screws and to decking supportswith 50 mm ring-shank nails. Floor deckingsupports are 64 mm by 38 mm softwood timber,fixed to cross-floor joists at 400 mm centres using85 mm by 5.5 mm self-drilling screws.

5.9 Thermal insulation is provided by 120 mmthick mineral wool, suspended between the floorjoists with a vented polythene membrane. Theoverall floor construction achieves a U value of0.25 Wm–2 K–1.

External walls5.10 External walls are of composite constructioncomprising 122 mm by 36 mm T16 grade CLSstudwork framing at a maximum of 600 mmcentres. Internal lining is 12.7 mm thick vinyl-wrapped plasterboard, screwed top and bottomand bonded to the timber framing. Externalcladding is 9 mm thick plywood, nailed to thestudwork and overclad with 0.7 mm thick colour-coated steel (Colorcoat HP200 as described inBBA Certificate No 91/2717). Thermal insulationis provided by 120 mm thick mineral wool insertedbetween the timber studding. The overall wallconstruction achieves a U value of 0.35 Wm–2K–1.

5.11 All external walls are fixed to the perimetergalvanized steel floor channels with steel self-tapping screws and to SHS corner columns usingsimilar fixings. The wall-to-wall corner trims arefixed with colour-matched nails.

Internal walls and finishes5.12 Typically, internal walls(1) are 12.7 mm thickvinyl-wrapped plasterboard, screwed top and bottomand bonded to the timber framing. Where requiredfor sound insulation, cavities are filled with mineralwool insulation. Skirtings are of white PVC in twoparts.(1) Outside the scope of this Certificate.

Roof5.13 Each module roof is of compositeconstruction using hot-dipped galvanized (Z35grade Fe E350G-coated G275 to BS EN 10326 :2004) cold-formed channel sections used as bothedge beams and cross-roof joists. Connection is byM10 bolts and 6.6 mm by 14.1 mm long steel

air and watertightcompressible tape

galvanizedsteel side rail

colour coatedsteel trim

EDPM roof sheet,bonded to OSB sheet

vinyl-wrappedplasterboard

mineral woolinsulation

mineral woolinsulation galvanized

steel side rail

galvanized steel cross joist

floor deckingair and watertightcompressible tape

mineral woolinsulation

6

Page 7: CI/SfB Rollalong Ltd

Megagrip rivets. The roof/ceiling is pitched at0.6 degrees.

5.14 Roof decking is water-resistant 15 mm thickoriented strand board, type OSB3 to BS EN 300 :1997, fixed to timber firring pieces which are fixedto cold-formed channel-section cross joists.

5.15 A timber ceiling frame is screwed to cross-joists using 65 mm by 6.7 mm self-drilling screws.Internal lining is 12.7 mm thick vinyl-wrappedplasterboard, screwed to the timber ceiling frame.

5.16 External roof covering is a single-layerroofing system (Firestone Rubberguard EPDM —BBA Certificate No 89/2216) — fire retardantversion, 1.15 mm thick. The membrane is bondedto the OSB ceiling using a water-based deckingadhesive.

5.17 Thermal insulation is provided by mineralwool to totally fill the roof voids. The overall roofconstruction achieves a U value of 0.25 Wm–2K–1.

Protection of exposed steelwork5.18 All exposed structural steelwork is shot-blasted,hot-dip galvanized to BS EN ISO 1461 : 1999,coated with primer and finished in gloss paint.

5.19 Roof flashings and wall drips fabricated fromColorcoat EPS steel are fitted around supportcolumns, the perimeter of the roof, the lowerperimeter of all modules.

Pitched roof system5.20 Lightweight steel roofs to various pitches anddesigns are available but are outside scope ofCertificate.

6 Manufacture6.1 Bought-in materials and components are toagreed specifications or in accordance with BritishStandards or Agrément Certificates.

6.2 Steel-framed components of the system arefabricated using conventional metalworkingtechniques.

6.3 Quality checks are made on the sub-assemblies, such as wall and roof panels and thesteel frame, and on the final assembly of themodules. During manufacture checks are made ondimensions, squareness and welding.

7 Delivery and site handling7.1 The modules are transported to site on aflat-bed lorry or trailer, long enough to fully supporteach module.

7.2 The modules are unloaded and positioned bycrane using eyebolts screwed into the column-headplates.

7.3 The open sides of the modules areweatherproofed using polythene sheeting duringtransit. The polythene sheeting also provides

protection during storage on site should themodules not be positioned on the day of delivery.

Design Data

8 Strength and stability8.1 The design of the Rollalong LiNXRelocatable Building System is generally inaccordance with:

• BS 5950-1 : 2000• BS 5950-5 : 1998• BS 5268-2 : 2002• BS 5268-6.1 : 1996• BS EN 594 : 1996.

8.2 The system is designed to support loadsevaluated in accordance with:• BS 6399-1 : 1996• BS 6399-2 : 1997• BS 6399-3 : 1988• BS 6767-1 : 1999• BS 6767-2 : 1998.

8.3 The racking resistance of the building isgenerally provided by the external walls and, insome building configurations, the internal walls,with additional bracing depending on site, locationand building layout. The structural design isgenerally in accordance with BS 5950-1 : 2000,BS 5950-5 : 1998 and BS 5268-6.1 : 1996.Any post-construction changes to steel framing,external walls (or internal walls where applicable)must be agreed by the Certificate holder.

8.4 The roof is designed to support a uniformlydistributed imposed load of 0.60 kNm–2 or aconcentrated load of 0.9 kN, in accordance withBS 6399-3 : 1988, and, therefore is acceptablewhere access is only for cleaning or repair.

8.5 The ground floor is designed to support auniformly distributed imposed load of 5 kNm–2 or aconcentrated load of 4.5 kN, in accordance withBS 6399-1 : 1996, and, therefore, is acceptablein, for example, classrooms and offices for generaluse.

8.6 Most building configurations do not requirethe modules to be bolted to foundations. Stabilitycalculations are available from the Certificateholder justifying any requirements for boltingmodules to the foundation.

8.7 Foundations must be designed in accordancewith BS 8004 : 1986.

8.8 If dismantled and relocated, full account mustbe taken of any changes made to the layout anduse of the reconstructed modules in respect ofstructural adequacy. The Certificate holder’s adviceshould be sought before modifications to any of thestructural components of the modules are made.

7

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9 Behaviour in relation to fire9.1 Statements in this section relate to the systembeing used in single-storey applications only. Theinformation on fire resistance does not support anyother applications.

9.2 Buildings subject to Building Regulationshave not been assessed for use within onemetre of a boundary. Due regard must be

taken of all ‘unprotected areas’.

9.3 It has been shown by tests and assessmentthat the buildings will meet Building Regulationsrequirements for fire rating as given in Table 2.

Table 2 Fire rating(1)

Component Duration

External walls half-hour(2)

Combined ceiling and floor assembly half-hour(2)

Steel column protection half-hour(2)

(1) Fire ratings given in this table relate to single-storey applications only.

(2) Short duration in Scotland.

9.4 The external claddings are assessed ashaving the following surface spread of flamecharacteristics(1):Plastisol-coated steel Class 0(2)

(1) As defined in the national Building Regulations thus:England and WalesApproved Document B, Appendix AScotlandMandatory Standard 2.5 Annex 2ENorthern IrelandTechnical Booklet E.(2) ‘Low risk’ in Scotland.

9.5 The internal surfaces of walls and ceiling areassessed as having the following surface spread offlame characteristics:vinyl-wrapped plasterboard Class 0(1)

ceiling surface Class 0(1)

(1) ‘Low risk’ in Scotland.

9.6 The roof is designated EXT.F.AA inaccordance with The Building Regulations2000 (as amended) (England and Wales),

Approved Document B, Appendix A, and TheBuilding Regulations (Northern Ireland) 2000,Technical Booklet E. When tested in accordancewith BS 476-3 : 2004, a roof constructionconsisting of Firestone Rubbergard EPDM FR,latex/neostrene blend contact adhesive on 12 mmthick OSB/2 substrate, acheived an EXT.F.AArating. Therefore, the roof is unrestricted under thenational Building Regulations.

9.7 The designation of the roof in Scotlandmust be determined in accordance withMandatory Standard 2.8 for compliance

with The Building (Scotland) 2004 Regulations.

9.8 Adequate provision must be made for escapein case of fire.

9.9 Where it is necessary for fittings, servicesor ducts to penetrate part of the fire-resistingconstruction, the detailing must ensure that therelevant fire resistance is not impaired, particularlyin relation to the integrity requirements.

9.10 When dismantling, relocating andre-assembling the building system, the re-assemblyprocess must include measures to ensure that therelevant fire resistance is not impaired, particularlyin relation to the integrity requirement.

10 Thermal insulation10.1 The building elements are designed toachieve or improve on the following U values(Wm–2K–1):ground floor 0.25(1)

external wall 0.35roof (flat) 0.25windows 1.90(1) For typical floor dimensions.

10.2 The requirements for limiting the heatloss through the building fabric are satisfiedwhere the U values, including thermal

bridging, of the building elements do not exceedthe maximum values given in:England and WalesApproved Document L2, Table 1(1)

ScotlandMandatory Standard 6.2, clause 6.2.2(2) or6.2.3(2)

Northern IrelandTechnical Booklet F, Table 1.4(1).(1) Elemental method.(2) Heat loss method or Carbon emissions calculation

method. Technical Handbook (Non-Domestic).

10.3 The level of insulation at junctions betweenelements and around openings in walls willadequately limit excessive additional heat loss andrisk of local condensation.

11 Condensation11.1 Although the Certificate holder does notspecify an upper internal relative humidity level,where high levels of condensation are likely toform, advice can be offered on suitable solutionsincluding mechanical ventilation and airconditioning.

11.2 If the floor is penetrated by services, eg soilpipes, the joints between the services and the floordeck and floor insulation must be adequatelysealed to prevent the ingress of water and watervapour.

11.3 Electric heating is supplied with themodules(1). Equipment producing large quantities of

8

Page 9: CI/SfB Rollalong Ltd

water vapour, for example flueless heaters, mustnot be used.(1) Not covered by this Certificate.

12 Ventilation12.1 The two windows supplied with the systemincorporate 4000 mm2 trickle vents and are ableto be opened to allow rapid ventilation whenrequired. The adequacy of provision must beconsidered for each building design.

12.2 Adequate underfloor ventilation is providedby pre-punched holes in the steel skirt to ensurecondensation on the steelwork or insulation iseffectively dispersed.

13 Weathertightness and damp-proofing13.1 The steel supporting columns raise thebuilding clear of the ground, giving it aninherent resistance to ground moisture.

13.2 The ground beneath the building, as aminimum, should be effectively cleared of turf andother vegetable matter at least to a depth sufficientto prevent later growth. The Certificate holderrecommends that a polythene or other suitablemembrane be placed over the surface to inhibitfuture weed growth.

13.3 In preparing the site for erection of thebuilding, adequate drainage must be provided, toprevent water collecting beneath or against thebuilding structure. Landscaping should not bepositioned so that loose soil can become bankedagainst the building perimeter.

13.4 The roof and external wall surfacesprovide adequate weather resistance. Thefinal weathertightness of the building is

dependent upon correct positioning and sealing ofthe roof beam casings and the sealing of thehorizontal and vertical joints between modules.

13.5 The buildings are provided with rainwatergutters and downpipes(1).(1) The Certificate holder can supply design calculations on

request but these are outside the scope of this Certificate.

13.6 The performance of windows and doors isnot covered by this Certificate; however, theperimeter joints between windows and doors andthe wall panels have been assessed and areadequate to ensure that water penetration will notoccur at these positions.

14 ServicesElectrical and plumbing services are outside thescope of this Certificate; however, in designingand installing these services, precautions must betaken to avoid the possible risk of long-termdamage to the structure or the services by, forexample, the ingress of water, water vapour orcondensate from cold water service pipes.

15 Maintenance15.1 The external wall skin of Colorcoat HP200requires an occasional washing with watercontaining a mild detergent. Where a highaesthetic standard is required, maintenancepainting may be required after a period of from10 to 30 years, depending on colour andenvironmental conditions, using a paintrecommended by the Certificate holder.

15.2 The walls, ceilings and internal surfaces canbe cleaned using water containing a milddetergent. These surfaces can be decorated usinga paint recommended by the Certificate holder.

15.3 Should it be necessary to replace or repairthe vinyl floor covering, all joints must be welded.Any replacement vinyl floor covering must be to anequivalent specification as the original.

15.4 In the event of impact or other damage toan external wall, a replacement steel panel can befitted over the original panel by the Certificateholder. If necessary, additional insulation can beinserted into the core of the wall before fitting thereplacement panel. This will restore theappearance and ensure that the weathertightnessand insulation are unaffected.

15.5 Trims or skirt panels can be readily replacedif necessary.

16 Durability16.1 The main structural framework isassessed as capable of achieving a designlife of 60 years. Other elements can achieve

a design life of between 20 and 60 yearsdepending on the materials, construction anddegree of maintenance. Reference may be madeto BS 7543 : 2003, or relevant AgrémentCertificate in this respect.

16.2 Particular care is required in the arrangementof dpcs, integrity of vapour control layers andweathertightness of the building envelope.

16.3 Foot traffic over the roof weatherproofingfinish should be restricted to the purpose ofmaintenance and suitable precautions taken toavoid the risk of damage to the single-layerreinforced roofing system.

16.4 The Colorcoat coating and galvanizing willbe effective for the building’s envisaged life. Therelevant BBA Certificate should be consulted forfurther information.

16.5 The ceiling covering will remain effective forthe period specified in section 16.1.

16.6 The sealants used in the construction of themodules in the factory and to seal betweenmodules on site are concealed and are not subjectto excessive movement. They should not normallyrequire replacement during the building’senvisaged life.

9

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Installation

17 General17.1 The Rollalong LiNX Relocatable BuildingSystem must be erected with due regard to anyboundary (see sections 9.1 and 9.2).

17.2 Erection or re-erection of the system can becarried out by either the Certificate holder or anappointed installer team(1). Training is offered tohire companies.(1) The team will have been suitably instructed by the

Certificate holder.

17.3 The arrangements for erection have beenassessed and found to be satisfactory.

18 Preparation18.1 Clients are normally responsible for provisionof suitable foundations and services and thereforethe following aspects should be subject tosupervision and should be checked before themodules are delivered to site:• setting out and level of foundations• setting out of service connections.

18.2 The requirements for access to the site by thecrane must be agreed with the client prior toerection and installation.

18.3 Modules are lifted off the delivery vehicle bycrane and placed on prepared foundations usingpurpose-designed lifting points incorporated in thecorner columns.

18.4 Temporary weatherproofing and bracing areremoved prior to final lifting into position.

18.5 Where specified, the building modules mustbe bolted to the foundations.

19 Procedure19.1 The end module is lifted into position onprepared foundations and levelled. Shims beneathcolumn base plates are used to make up anyinaccuracies in foundation levels.

19.2 The second module is lifted and positionednext to the end module and fixed together using thesite fixing stud bars, threaded through the centreholes of the corner posts.

19.3 Once lined and levelled both posts, roofand floor interfaces are bolted together. The site

fixings bars are removed and replaced with abolted connection.

19.4 The erection process is repeated for theremainder of the ground-floor modules withcappings, cover skirts, gutters and rainwater pipesbeing fixed in position as work proceeds.

Technical Investigations

The following is a summary of the technicalinvestigations carried out on the Rollalong LiNXRelocatable Building System.

20 Investigations20.1 An examination was made of existing datato assess:• structural strength and stability• impact resistance of floor and wall panels• load capacity of roof and floor• behaviour in fire• effect of thermal bridging• roof and wall U values to BS EN ISO 6946 :

1997• floor U values to BS EN ISO 13370 : 1998

and BS EN ISO 10211-1 : 1996• weathertightness• durability• maintenance requirements20.2 Calculations were made and computersimulations carried out to determine theeffectiveness of the insulation arrangements and therisk of condensation.

20.3 The manufacturing process was examined,including the methods adopted for quality control,and details were obtained of the quality andcomposition of the materials used.

20.4 A site visit was carried out to witness theinstallation process of a single-storey classroomblock.

Additional Information

The management systems of Rollalong Ltd havebeen assessed and registered as meeting therequirements of BS EN ISO 9001 : 2000 by SGSUnited Kingdom Ltd (Certificate No GB94/3223).

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Bibliography

BS 476-3 : 2004 Fire tests on building materialsand structures — Classification and method of testfor external fire exposure to roofsBS 2750-3 : 1995 Measurement of soundinsulation in buildings and of building elements —Laboratory measurements of airborne soundinsulation of building elementsBS 5268-2 : 2002 Structural use of timber —Code of practice for permissible stress design,materials and workmanshipBS 5268-6.1 : 1996 Structural use of timber —Code of practice for timber frame walls —Dwellings not exceeding four storeys

BS 5950-1 : 2000 Structural use of steelwork inbuilding — Code of practice for design — Rolledand welded sectionsBS 5950-5 : 1998 Structural use of steelwork inbuilding — Code of practice for design of coldformed thin gauge sections

BS 6399-1 : 1996 Loading for buildings — Codeof practice for dead and imposed loadsBS 6399-2 : 1997 Loading for buildings — Codeof practice for wind loadsBS 6399-3 : 1988 Loading for buildings — Codeof practice for imposed roof loads

BS 6767-1 : 1999 Transportable accommodationunits — Recommendations for design andconstruction of the basic unitBS 6767-2 : 1998 Transportable accommodationunits — Recommendations for design andinstallation of services and fittings with guidance ontransportation, siting and aspects relating tohabitation

BS 7543 : 2003 Guide to durability of buildingsand building elements, products and components

BS 8004 : 1986 Code of practice for foundations

BS EN 300 : 1997 Oriented Strand Boards(OSB) — Definitions, classification andspecifications

BS EN 594 : 1996 Timber structures — Testmethods — Racking strength and stiffness of timberframe wall panelsBS EN 10326 : 2004 Continuously hot-dipcoated strip and sheet of structural steels —Technical delivery conditions

BS EN ISO 1461 : 1999 Hot dip galvanizedcoatings on fabricated iron and steel articles —Specifications and test methods

BS EN ISO 6946 : 1997 Building componentsand building elements — Thermal resistance andthermal transmittance — Calculation method

BS EN ISO 9001 : 2000 Quality managementsystems — Requirements

BS EN ISO 10211-1 : 1996 Thermal bridges inbuilding construction — Heat flows and surfacetemperatures — General calculation methods

BS EN ISO 13370 : 1998 Thermal performanceof buildings — Heat transfer via the ground —Calculation methods

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

©2006For 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: [email protected]: www.bbacerts.co.uk

Conditions of Certification

21 Conditions21.1 This Certificate:(a) relates only to the product that is named,described, installed, used and maintained as setout in this Certificate;(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) is valid only within the UK;(d) has to be read, considered and used as awhole document — it may be misleading and willbe incomplete to be selective;(e) is copyright of the BBA;(f) is subject to English law.

21.2 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,are references to such publication in the form inwhich it was current at the date of this Certificate.

21.3 This Certificate will remain valid for anunlimited period provided that the product and themanufacture and/or fabrication including allrelated and relevant processes thereof:(a) are maintained at or above the levels whichhave been assessed and found to be satisfactoryby the BBA;

(b) continue to be checked as and when deemedappropriate by the BBA under arrangements that itwill determine; and(c) are reviewed by the BBA as and when itconsiders appropriate.

21.4 In granting this Certificate, the BBA is notresponsible for:(a) the presence or absence of any patent,intellectual property or similar rights subsisting in theproduct or any other product;(b) the right of the Certificate holder to market,supply, install or maintain the product; and(c) the actual works in which the product isinstalled, used and maintained, including thenature, design, methods and workmanship of suchworks.

21.5 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.

In the opinion of the British Board of Agrément, the Rollalong LiNX Relocatable Building Systemis fit for its intended use provided it is installed, used and maintained as set out in thisCertificate. Certificate No 05/4265 is accordingly awarded to Rollalong Ltd.

On behalf of the British Board of Agrément

Date of issue: 7th March 2006 Chief Executive