BBA Certificate
Contents
1. stop bead batten lt 1 RARAN b d L EALA At LA OCCO OCOLO OOO O seeeenees SU KESERIED ESSE ESIEO SOG EH EE 109990909 POCO OOOO COC COC OCU Seeseeees SOSSCOS OSHS CORE HSNO ECOS SSNS 109990908 1000000 000000000010000080 0S Celotex PIR 100090000 leanasassunanactocinaceasenis Gea eeee mM SHS SR HORE SHORES NG TEER NE insulation 14 14 Horizontal joints are butted and taped and a vapour control layer is fitted to the underside of the ratters 14 15 Where the ratter depth cannot accommodate the required thickness of insulation and maintain the required 50 mm ventilated gap one of the following options may be considered e the rafter depth is increased by attaching timber counter battens to the underside of the rafter see Figure 5 a or preferably e a second layer of insulation is added to the underside of the rafters see Figure 5 b Page 9 of 12 roof tile underlay Celotex PIR insulation a stop bead plasterboard aA x lt O me oO Q additional Celotex PIR insulation plasterboard roof tile underlay insulation plasterboard insulation imber grounds L Page 10 of 12 SRR a increased rafter depth b standard rafter depth Figure 5 Additional insulation timber counter batten Fi2. the building envelope and or services 5 5 The products can contribute to maintaining continuity of thermal insulation at junctions between elements Example junction details shown in Figure 1 are acceptable and the corresponding psi values in BRE Information Paper IP 1 06 Table 3 Assessing the eftects of thermal bridging at junctions and around openings may be used in carbon emission calculations in Scotland and Northern Ireland Detailed guidance on other junctions and on limiting heat loss and air infiltration can be found in England and Wales Approved Documents to Part L and for new thermal elements to existing buildings Accredited Construction Details version 1 0 See also SAP 2009 Appendix K and the iSBEM User Manual for new build Scotland Accredited Construction Details Scotland Northern Ireland Accredited Construction Details version 1 0 Page 5 of 12 Figure 1 Junctions between roots and walls breather membrane DY A A N yan b A XO 4 KO Celotex PIR insulation Ze i below rofter A W JA DQ gt D aN A ON A e n Oy See XI X Y YN AIX XI Celotex PIR insulation between rafter C Oo aS las A void filled with insulation meeting an Rvalue of 1 2 m KW Y N N w Q pu 6lg 7A Z Celotex PIR cavity wall insulation N b AY a Existing buildings 5 6 For existing buildings in work such as extension
3. to manufacture supply install maintain or market the product system e individual installations of the product system including the nature design methods and workmanship of or related to the installation e the actual works in which the product system is installed used and maintained including the nature design methods and workmanship of such works 17 5 Any intormation relating to the manufacture supply installation use and maintenance of this product system which is contained or referred to in this Certificate is the minimum required to be met when the product system is manufactured supplied installed used and maintained It does not purport in any way to restate the requirements of the Health amp Safety at Work etc Act 1974 or of any other statutory common law or other duty which may exist at the date of this Certiticate nor is conformity with such information to be taken as satistying the requirements of the 1974 Act or of any statutory common law or other duty of care In granting this Certiticate the BBA does not accept responsibility to any person or body for any loss or damage including personal injury arising as a direct or indirect result of the manufacture supply installation use and maintenance of this product system British Board of Agr ment tel 01923 665300 Bucknalls Lane w Oo COSCO Garston Watford email mail bba star co uk Herts VVD25 9BA website www bbacerts co uk Page 12 of 12
4. 0 200 FR4000 1200 x 2400 25 50 00 70 75 80 90 100 110 120 130 140 and 150 2 Delivery and site handling 2 1 The boards are delivered to site in packs Each pack contains a label bearing the manufacturer s name board dimensions and the BBA identification mark incorporating the number of this Certificate 2 2 The boards must be protected from prolonged exposure to sunlight and should be stored either under cover or protected with opaque polythene sheeting Where possible packs should be stored inside It stored outside the boards should be stacked flat and raised above ground level and not in contact with ground moisture 2 3 Care must be exercised in handling individual boards to avoid crushing the edges or corners 2 4 The boards must not be exposed to open flame or other ignition sources Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on the Celotex Range of PIR Insulation Boards for Pitched Root Insulation 3 General 3 1 The Celotex Range of PIR Insulation Boards for Pitched Roof Insulation is effective in reducing U value thermal transmittance of new or existing pitched roofs for use above between and or below roof rafters in conjunction with internal lining board roof tile underlay timber counter battens and tiling battens in tiled or slated pitched roofs designed and constructed in accordance with the relevant Clauses of BS 5534 2003 fo
5. control layer the products will be unrestricted under this Standard with reference to clauses 3 15 1 l2 and 3 15 42 See sections 6 1 and 6 6 of this Certificate Standard 6 lo Carbon dioxide emissions Standard O2 Building insulation envelope Comment The products can contribute to satisfying clauses or parts of 6 1 10 6 1 2123 6 1 60 6 2 102 6 2 30 O2 AM2 6 2 502 and O 2 Oroi these Standards See sections 5 3 to 5 6 of this Certificate Regulation 12 Building standards conversions Comment All comments given for these products under Regulation 9 also apply to this Regulation with reference to clause 0 12 1 and Schedule 61 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 5 iA The Building Regulations Northern Ireland 2000 as amended Regulation B2 Fitness of materials and workmanship Comment The products are acceptable See section 12 and the Installation part of this Certificate Regulation C5 Condensation Comment Roofs incorporating the products can meet this Regulation See section 6 1 of this Certificate Regulation F2 a i Conservation measures Comment Roofs incorporating the products can satisfy or contribute to satisfying this Regulation See sections 5 3 to 5 6 of this Certificate Regulation F3 2 Target carbon dioxide Emission Rate Comment Roofs incorporating the products can satisfy or contribute to satisfying this Regulation See section 5 3 of this Cer
6. e o APPROVAL Celotex Limited BB A INSPECTION Lady Lane Industrial Estate E CATON Hadleigh TECHNICAL APPROVALS FOR CONSTRUCTION loswich se ne ato Fax O1473 870860 Agr ment Certificate el ax email technical celotex co uk 95 3 97 website www celotex co uk Product Sheet 3 CELOTEX INSULATION CELOTEX RANGE OF PIR INSULATION BOARDS FOR PITCHED ROOF INSULATION This Certiticate relates to the Celotex Range of PIR Insulation Boards for Pitched Root Insulation comprising rigid polyisocyanurate foam boards with low emissivity aluminium foil facings on both sides for use in pitched roots AGREMENT CERTIFICATION INCLUDES e factors relating to compliance with Building Regulations where applicable e factors relating to additional non regulatory information where applicable independently veritied technical specification assessment criteria and technical investigations design considerations installation guidance regular surveillance of production formal three yearly review KEY FACTORS ASSESSED Thermal performance the manufacturer s declared thermal conductivity gg 99 value of the insulation component of the products as declared by the Certificate holder is 0 022 W m K see section 5 Condensation the foil facings have a water vapour resistance exceeding 70 MN s g and the insulation core has a water vapour resistivity of 300 MN s g m7 and therefore will provide a significant resistance to wate
7. gure 6 Added timber grounds 14 18 Where the insulation thickness makes securing of the internal lining panels impractical timber grounds of 14 17 Boards are temporarily tixed with broad headed clout nails and joints butted and taped Appropriate internal appropriate depth may be fixed through to the rafters and the panels secured to the grounds see Figure 6 14 16 Boards may be attached to the underside of ratters either as a single layer or in conjunction with insulation lining panels may then be tixed through the insulation and into the underside of the ratters boards between the rafters 14 19 Roof tiles or slates are installed in accordance with the relevant Clauses of BS 5534 2003 14 20 Internal lining panels appropriate to the application and required decoration are applied Finishing 15 Tests Tests were carried out on the Celotex Range of PIR Insulation Boards for Pitched Root Insulation to determine e load compression characteristics e effect of cyclic loading e thermal conductivity e compressive strength 16 Investigations 16 1 The manufacturing process was examined including the methods adopted for quality control and details were obtained of the quality and composition of the materials used 16 2 An examination was made of data relating to e thermal conductivity fresh and aged e dimensional accuracy e dimensional stability e water vapour resistance e compressive strength at 10 compression e densit
8. n be obtained from the Certificate holder The Certificate holder and fixing manufacture must advise on the use of the correct proprietary fixings and improved nails and fixing capacity in accordance with BS EN 1995 1 1 2004 and the National Annex 10 Resistance to moisture The products will not be adversely affected by rain during installation nor by wind driven snow or rain penetrating the tiling in service Water absorption is low and its influence on the value is minimal 11 Maintenance As the products are confined within the pitched root by the overlay and it has suitable durability see section 1 2 maintenance is not required 12 Durability products will have a life equivalent to that of the roof structure in which they are incorporated 13 General 13 1 Installation of the Celotex Range of PIR Insulation Boards for Pitched Root Insulation must be in accordance with the relevant Clauses of BS 5534 2003 and the manufacturer s instructions and can be carried out in all conditions normal to roof work Page 7 of 12 13 2 The boards are light to handle but some handling difficulties may be experienced in windy conditions Once laid the boards will not support the weight of operatives Appropriate care must be taken during installation and tiling 13 3 The boards can be cut easily but care must be taken to prevent damage particularly to edges Damaged boards should not be used Small areas of damaged facer may be repaired
9. n the board thickness is not greater than 25 mm the counter battens 38 mm by 50 mm may be tixed through the insulation to the supporting timber by means of slab nails 3 35 mm diameter 100 mm long at maximum centreto centre spacing of 400 mm Page 8 of 12 14 11 The root tile underlay should be installed in the appropriate manner Tiling battens should be nailed through the underlay into the counter battens in accordance with BS 5534 2003 at the required batten gauge Where vapour permeable tile underlays are used they should be installed in accordance with the appropriate Agr ment Certificate Method 3 14 12 Where additional insulation is required an additional layer of insulation can be installed between the counter battens but the counter battens should be at least 12 mm thicker than the insulation boards see Figure 3 Figure 3 Additional insulation Celotex PIR counter batten insulation additional Celotex PIR insulation between counter batten rafter Between rafter insulation 14 13 Boards are cut and from the inside fitted tightly between the rafters flush with the underside and butt against stop beads or battens which maintain a ventilated air gap at least 50 mm deep see Figure 4 Where vapour permeable root tile underlays are used the insulation may be installed without a ventilated air space see section 6 1 Figure 4 Fitted board
10. nalysis in accordance with BS 5250 2002 shows that it is not necessary Surface condensation 7 6 5 Roots will adequately limit the risk of surface condensation when the thermal transmittance U value does 55 gm not exceed 0 35 W m K at any point and the junctions with walls are designed in accordance with the relevant requirements of Limiting thermal bridging and air leakage Robust construction details for dwellings and similar buildings TSO 2002 or BRE Information Paper IP 1 06 Assessing the effects of thermal bridging at junctions and around openings not exceed 1 2 W m K at any point Guidance may by obtained from BS 5250 2002 Section 8 and For Roots will adequately limit the risk of surface condensation when the thermal transmittance U value does BRE Report BR 262 2002 7 Behaviour in relation to fire 7 1 When installed between under or over rafters the product will be contained between the roof and internal lining board until one is destroyed Therefore the insulation will not contribute to the development stages of a fire or present a smoke or toxic hazard Page 6 of 12 7 2 The product must not be carried over junctions between roots and walls required to provide a minimum period of tire resistance The continuity of tire resistance must be maintained tor example as described in England and Wales Approved Document B Volume 1 Dwelling houses paragraphs 5 11 and 5 12 Approved Document B Volume 2 B
11. nductivity Nog 99 value of 0 022 W m Kl and an emissivity of the outer layer of 0 05 5 2 The U value of a completed root will depend on the thickness of the insulation used the extent and arrangement of timber bridging and the insulating value of other roof components layers Calculated U values tor example constructions are given in Table 2 Table 2 Example roof U values U value Insulation Over Between Between and thickness rafters rafters under rafters mm VV m2 K7 VV m2 K WV m2 K 12 O57 0 83 30 0 39 O55 50 0 29 0 40 70 0 23 O32 90 0 19 O27 100 O 17 0 25 120 0 15 oO 150 0 12 0 18 165 0 11 0 16 200 0 10 0 14 40 45 0 25 504 45 0 28 504 50 0 22 60 65 0 18 70470 0 16 5 5 0 15 80 40 0 20 100 25 0 20 120425 0 17 100 65 0 19 documents supporting the national Building Regulations The U values shown in Table 3 indicate that the product can contribute to enabling a roof to achieve typical design U values referred to in those supporting documents see Tables 3 4 and 5 AG When considering insulation requirements designers should refer to the detailed guidance contained in the Table 3 Mean design roof U values England and Wales Construction U value W m 2 K 1 Notional dwelling 0 16 Existing building new replaced renovated or retained roof 0 18 Notional non domestic buildi
12. ng 0 18 Dwelling new build limit 0 20 Non domestic new build limit 0 25 1 Flexible approaches on existing buildings are given in the Approved Documents Page 4 of 12 Table 4 Mean design roof U values Scotland Construction U value W m 2 K 1 Notional dwelling 0 13 New dwelling simplitied method 0 13 Conversion of unheated building into dwelling 0 15 Extension to dwelling 0 15 New non dwellings limit for shell and fit out 0 15 Conversion of unheated building O 15 Non domestic extension alterations and reconstructions 0 15 Alterations and reconstructions to an element 0 18 Stand alone building lt 50 m to a dwelling 0 18 New dwelling limit 0 18 New non domestic limit 0 20 Conversion of heated building 0 25 Notional non dwelling O25 1 Flexible approaches on existing buildings are given in the Technical Handbooks Table 5 Mean design roof U values Northern Ireland Construction U value W m 2 K 1 Notional dwelling 0 16 Existing building replaced renovated or retained roof 0 20 Building new build limit 0 25 Notional non domestic building Jaa 1 Flexible approaches on existing buildings are given in the Technical Booklets New buildings 5 4 Roots with U values lower than or the same as for dwellings in Scotland the relevant notional value specitied in section 5 3 will contribute to a building meeting its Target Emission Rate Roofs with higher U values will require additional energy saving measures in
13. r dwellings or other buildings with similar temperature and humidity conditions 3 2 The boards are for use in constructions where the ceiling follows the pitch of the root and encloses a habitable space or where the ceiling is horizontal and encloses a loft space 3 3 Although the boards will contribute to the buckling and racking strengths of the roof normal cross bracing is necessary when using them 3 4 During installation the boards must not be walked on except over supporting root timbers The boards have insufficient nail holding ability to be considered as an alternative to timber sarking Page 3 of 12 3 5 It is essential that detailing and jointing of the boards achieves a convection tree envelope of high vapour resistance Any gaps should be filled and or taped Ridges abutments and penetrations should also be sealed Flue pipes passing through the insulation should be suitably sleeved 3 6 The requirements provisions of fire stops should be considered with regard to national Building Regulations A Practicability of installation The products are designed to be installed by a competent general builder or a contractor experienced with this type of product 5 Thermal performance 5 1 Calculations of the thermal transmittance U value of specific root constructions should be carried out in accordance with BS EN ISO 6946 2007 and BRE Report BR 443 2006 Conventions for U value calculations using the declared thermal co
14. r vapour transmission see section 6 Behaviour in relation to fire the products will not contribute to the development stages of a fire or present a smoke or toxic hazard see section 7 Resistance to moisture the products will not be adversely affected by rain showers during installation nor by wind driven snow or rain penetrating the tiling in service see section 10 Durability the product will have a lite equivalent to that of the root structure in which it is incorporated see section 1 2 The BBA has awarded this Agr ment Certificate to the company named above for the products described herein These products have been assessed by the BBA as being fit for their intended use provided they are installed used and maintained as set out in this Certificate On behalf of the British Board of Agr ment ae 1 A Date of Second issue 12 October 2010 Chris Hunt Greg Cooper Originally certificated on 31 March 1996 Head of Approvals a Physics Chief Executive Certiticate amended on 3 November 2010 with updated information in the Thermal performance section The BBA is a UKAS accredited certification body Number 113 The schedule of the current scope of accreditation for product certification is available in pdf format via the UKAS link on the BBA website at www bbacerts co uk Readers are advised to check the validity and latest issue number of this Agr ment Certificate by either referring to the BBA website or con
15. rm or person named on the front page no other company firm or person may hold or claim any entitlement to this Certiticate e is valid only within the UK e has to be read considered and used as a whole document it may be misleading and will be incomplete to be selective e is copyright of the BBA e is subject to English law 17 2 Publications and documents referred to in this Certificate are those that the BBA deems to be relevant at the date of issue or re issue of this Certificate and include any Act of Parliament Statutory Instrument Directive Regulation British European or International Standard Code of Practice manufacturers instructions or any other publication or document similar or related to the aforementioned 17 3 This Certificate will remain valid for an unlimited period provided that the product system and the manufacture and or fabrication including all related and relevant processes thereof e are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA e continue to be checked as and when deemed appropriate by the BBA under arrangements that it will determine e are reviewed by the BBA as and when it considers appropriate 17 4 In granting this Certificate the BBA is not responsible for e the presence or absence of any patent intellectual property or similar rights subsisting in the product system or any other product system e the right of the Certificate holder
16. s and conversions roofs will be acceptable where they do not exceed the relevant U values given in section 5 3 and junctions and openings comply with section 5 6 or BRE Report BR 262 2002 Thermal insulation avoiding risks 6 Condensation Interstitial condensation 6 1 Roofs will adequately limit the risk of interstitial condensation when they are designed and constructed in 71 A accordance with BS 5250 2002 Section 8 4 and Appendix D 6 2 The risk of interstitial condensation will be minimal under normal conditions of use The foil facings have a water vapour resistance exceeding 70 MN s g and the insulation core has a water vapour resistivity of 300 MN s g m and when installed with tightly butted joints filled sealed gaps and joints will provide a continuous convection tree envelope of high vapour resistance Therefore a suitable vapourpermeable root tile underlay may be laid over the insulation boards without ventilated air space When using a high resistance type Hk underlay the space below it must be ventilated in accordance with BS 5250 2002 Section 8 4 6 3 Where the product is installed in a roof with either a horizontal or sloping ceiling ie room inthe root a warm root space is created and ventilation is not required However any insulation in a horizontal ceiling should be removed 6 4 Where high humidity may be expected a vapour control layer should also be used unless a condensation risk a
17. tacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane ene OOZES COS SiO Garston Watford email mail bba star co uk Hem ADS OBRA website www bbacerts co uk Page of 12 Regulations In the opinion of the BBA the Celotex Range of PIR Insulation Boards for Pitched Roof Insulation if used in accordance with the provisions of this Certificate will meet or contribute to meeting the relevant requirements of the following Building Regulations 5 gt The Building Regulations 2010 England and Wales Requirement C2 c Resistance to moisture Comment The products can enable or contribute to enabling a roof to meet this Requirement See sections 6 1 and 6 5 of this Certificate Requirement L1 a i Conservation of fuel and power Comment The products can contribute to meeting this Requirement See sections 5 3 to 5 6 of this Certiticate Requirement Regulation 7 Materials and workmanship Comment The products are acceptable See section 12 and the Installation part of this Certificate k The Building Scotland Regulations 2004 as amended 5 Regulation 8 1 Fitness and durability of materials and workmanship Comment The products can contribute to a construction meeting this Regulation See section 12 and the Installation part of this Certiticate Regulation 9 Building standards construction Standard Sale Condensation Comment When used in conjunction with an appropriate vapour
18. tificate Construction Design and Management Regulations 2007 Construction Design and Management Regulations Northern Ireland 2007 Information in this Certificate may assist the client CDM co ordinator designer and contractors to address their obligation under these Regulations See section 13 General 13 2 of this Certificate Page 2 of 12 Non regulatory Information NHBC Standards 2010 NHBC accepts the use of the Celotex Range of PIR Insulation Boards for Pitched Roof Insulation when installed and used in accordance with this Certificate in relation to NHBC Standards Chapter 7 2 Pitched roofs This Certificate relates to the Celotex Range of PIR Insulation Boards for Pitched Roof Insulation for use as insulation above between and or below rafters in tiled or slated pitched roofs designed and constructed in accordance with Clauses of BS 5534 2003 Technical Specification 1 Description The Celotex Range of PIR Insulation Boards for Pitched Root Insulation comprises Celotex TBR4000 GA4000 XR4000 GX4000 and FRAOOO rigid polyisocyanurate foam board with low emissivity aluminium foil facings on both sides These products are available in the dimensions given in Table 1 Table 1 Nominal dimensions Product i vm oe TBAOOO 1200 x 2400 12 20 25 30 35 40 and 45 GA4000 1200 x 2400 50 55 60 65 70 75 80 85 90 95 and 100 XRAOOO 1200 x 2400 110 120 130 140 150 165 and 200 GX4000 1200 x 600 2
19. tiling battens should be installed using one of the following alternative methods of fixing Method 1 14 6 Counter battens 38 mm by 50 mm should be fixed using suitable fixings at maximum centre to centre spacing ot 40O mm These fixings should pass through the counter batten and insulation and penetrate the supporting timber by a minimum of 37 mm 14 7 The root tile underlay should be installed in the conventional manner Tiling battens should be nailed through the underlay into the counter batten in accordance with BS 5534 2003 at the required batten gauge Where permeable tile underlays are used they should be installed in accordance with the appropriate Agr ment Certificate Method 2 14 8 Counter battens 12 mm by 50 mm or 19 mm by 50 mm in Scotland should be fixed using suitable fixings at maximum centre to centre spacing of 90O mm These fixings should pass through the counter batten and the insulation and penetrate the supporting timber by a minimum of 37 mm 14 9 The root tile underlay should be installed in the conventional manner and held in place by tiling battens fixed by the fixings passing through the tiling batten root tile underlay counter batten and insulation and penetrating the supporting timber by a minimum of 37 mm at the required batten gauge in accordance with BS 5534 2003 Where vapour permeable tile underlays are used they should be installed in accordance with the appropriate Agr ment Certificate 14 10 Whe
20. uildings other than dwelling houses Diagram 30 Scotland Mandatory Standard 2 2 clauses 2 2 72 and 2 2 10 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet E paragraph 3 21 7 3 The boards may be classitied as shown in Table 6 Table 6 Fire classification TB4000 GA4000 XR4000 GxX4000 FRAOOO Class 1 to BS 476 7 20 90 mm only Euroclass D to Class 1 to BS 4767 Class 1 to BS 476 7 Euroclass F to BS EN 13501 1 Class 1 to BS 4767 50 90 mm only BS EN 13501 1 55 90 mm Euroclass F to BS EN 13501 1 20 50 mm and 95 200 mm Euroclass F to Euroclass D to Pass to BS 476 6 BS EN 13501 1 BS EN 13501 1 55 90 mm Euroclass F to Class O as described in the BS EN 1350 1 1 national Building Regulations 50 mm 95 mm and 100 mm 8 Strength The products when installed in accordance with the Certificate holder s instructions and this Certificate will resist the normal loads likely to be met during installation and in service 9 Structural stability 9 1 Wind uplift will depend largely on the building geometry and its geographical location and should be calculated in accordance with BS 6399 2 1997 Snow loadings should be calculated in accordance with BS 6399 3 1988 9 2 When calculating the fixing spacing required to resist the calculated loadings the requirements of BS EN 1995 1 1 2004 and the National Annex should be followed where possible Further guidance ca
21. with self adhesive aluminium foil tape 13 4 It is important to fill seal gaps and joints in the insulation envelope 13 5 Roof tiles or slates are installed in accordance with the relevant Clauses of BS 5534 2003 13 6 When applying root tiles or slates to a warm roof construction the recommendations of the manufacturer should be followed 14 Procedure 14 1 A treated imber stop batten equal in thickness to the insulation board is fixed at eaves level and the boards butted directly against it see Figure 2 Figure 2 Overratter insulation rafter counter 1 le batten roof tile underlay Celotex PIR insulation over rafter aluminium _ L foil tape i AERES A treated timber stop batten 14 2 The boards should be temporarily fixed onto the rafters using broad headed clout nails and with joints running up the roof slope occurring over the rafters Cross joints may be unsupported 14 3 All board joints should be tightly butted At ridges and verges the boards should be cut to achieve a close butt joint 14 4 Once the boards have been fixed to the rafters all joints between boards and between boards and stop battens should be sealed using selfadhesive aluminium foil tape 14 5 Counter battens underlay and
22. y e tire risk 16 3 An assessment of the risk of interstitial condensation in typical constructions was made Bibliography BS 476 6 1989 Fire tests on building materials and structures Method of test for fire propagation for products BS 476 7 1997 Fire tests on building materials and structures Method of test to determine the classification of the surface spread of flame of products BS 5250 2002 Code of practice for control of condensation in buildings BS 5534 2003 Code of practice for slating and tiling including shingles BS 6399 2 1997 loading for buildings Code of practice for wind loads BS 6399 3 1988 loading for buildings Code of practice for imposed roof loads BS EN 1995 1 1 2004 Eurocode 5 Design of timber structures General Common rules and rules for buildings NA to BS EN 1995 1 1 2004 UK National Annex to Eurocode 5 Design of timber structures General Common rules and rules for buildings BS EN 13501 1 2007 Fire classification of construction products and building elements Classification using test data from reaction to fire tests BS EN ISO 6946 2007 Building components and building elements Thermal resistance and thermal transmittance Calculation method Page 11 of 12 Conditions of Certification 17 Conditions 17 1 This Certificate e relates only to the product system that is named and described on the front page e is granted only to the company fi
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