Xtratherm UK Ltd XTRATHERM SAFE
Contents
1. Floor type Perimeter Insulation thickness one 50 mm 80mm 120mm Slab on ground 0 2 0 19 0 14 0 11 support 0 4 0 25 0 17 0 13 0 6 x 0 19 0 14 0 8 0 20 0 15 1 0 0 21 0 15 Suspended timber 0 2 0 24 0 19 0 15 floor 0 4 0 22 0 18 0 6 0 24 0 19 0 8 0 25 0 19 1 0 0 20 Suspended beam and 0 2 0 20 0 15 0 12 block floori N3w4 0 4 0 24 0 17 0 13 0 6 0 18 0 14 0 8 i 0 19 0 14 1 0 0 20 0 14 1 Edge insulation not included 2 Wall thickness w 0 3 m 3 Supporting wall U 1 5 W m K 4 Ventilation area e 0 0015 m2 m Table 4 Mean design floor U values England and Wales Construction U value Wm Existing building new or replaced floor 0 22 Notional non domestic building 0 22 Dwelling new build limit 0 25 Non domestic new build limit 0 25 Notional dwelling 0 25 Existing building renovated or retained floor 0 25 1 Flexible approaches on existing buildings are given in the Approved Documents Table 5 Mean design floor U values Scotland Construction U value W m K 1 Notional dwelling 0 15 New dwelling simplified method 0 15 Conversion unheated building into dwellings 0 15 Extension to dwelling 0 15 Alterations and reconstructions to a dwelling 0 18 Stand alone building lt 50 m to a dwelling 0 18 New dwelling limit 0 20 New non dwellings limit for shell and fit out 0 20 Conversion of unheated building 0 20 Non domestic extension alterati2. 14 Tests Tests were carried out on Xtratherm SafeR Underfloor Insulation by the BBA in accordance with BS EN 13166 2008 to determine dimensional stability compressive strength e Short term water absorption long term water absorption by partial immersion e thermal conductivity compressive creep e bowing under a thermal gradient 15 Investigations 5 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 5 2 An assessment was made of the results of test data to BS EN 13166 2008 in relation to dimensions e squareness density e value 5 3 An assessment of the risk of interstitial condensation was made 5 4 An assessment was made of typical constructions which achieve the design U values Page 9 of 12 Bibliography BS 1282 1999 Wood preservatives Guidance on choice use and application BS 5250 2002 Code of practice for control of condensation in buildings BS 6399 1 1996 loading for buildings Code of practice for dead and imposed loads BS 8000 9 2003 Workmanship on building sites Cementitious levelling screeds and wearing screeds Code of practice BS 8102 1990 Code of practice for protection of structures against water from the ground BS 8203 2001 Code of practice for installation of resilient floor coverings BS 8204 1 2003 Screeds bases and in sit
3. Xtratherm UK Ltd APPROVAL Holmen BBA TESTING or TESTING Holmewood Industrial Park CERTIEICATION Holmewood TECHNICAL APPROVALS FOR CONSTRUCTION Chesterfield iu xs d Fax 0371 222 1044 tern Certificate el ax email info xtratherm com 10 4803 website www xtratherm com Product Sheet 3 XTRATHERM SAFE R INSULATION XTRATHERM SAFE R UNDERFLOOR INSULATION This Certificate relates to Xtratherm Safe R Underfloor Insulation comprising rigid phenolic board with a composite foil facing on both sides for use on ground supported or suspended concrete ground floors or between the joists of suspended timber ground floors in new and existing domestic or similar buildings AGREMENT CERTIFICATION INCLUDES e factors relating to compliance with Building Regulations where applicable factors relating to additional non regulatory information where applicable independently verified 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 product thermal conductivity 00790 value ranges from 0 021 W mr K to 0 023 Wm K depending on thickness and calculations for typical floor constructions indicate U values between O 11 W m K7 and 0 25 W m 2 K see section 5 Condensation the product can adequately limit the risk o
4. 2001 Section 3 1 2 5 Where the product is used over ground supported concrete floor slabs a suitable damp proof membrane must be installed in accordance with CP 102 1973 Section 11 and BS 8204 1 2003 or BS 8204 2 2003 to resist moisture from the ground If a liquidtype damp proof membrane is applied to the slabs it should be of a type compatible with the product and be allowed to dry out fully prior to installing the insulation 6 Ground floors with a hardcore base must be compacted and blinded with a thin layer of sand before laying the dpm product and concrete slab 7 The product can be used on beam and block suspended concrete floors that are subject of a current Agr ment Certificate It should be installed in accordance with and within the limitations imposed by that Certificate or those designed and installed to the precast and general loading codes that have been assessed as suitable 8 Where a screed or concrete slab is laid over the product vertical upstands of the product should be provided and of sufficient depth to fully separate the screed or slab from the wall and provide a minimum thermal resistance of 0 75 m K W Alternatively a suitable cavity wall insulation material can be extended below the damp proof course level to provide edge insulation to the floor 9 In suspended timber floors the product is installed between the floor joists 1O To limit the risk of damage from condensat
5. 53 accordance with BS 5250 2002 Section 8 5 and Appendix D and BRE Report BR 262 2002 Thermal insulation avoiding risks for England and Wales 6 2 For the purposes of assessing the risk of interstitial condensation the insulation core vapour resistivity may be taken as approximately 250 MN s g m and a resistance value of 1000 MN s g for each individual foil facing 4S Floors will adequately limit the risk of interstitial condensation when they are designed and constructed in 6 3 For beam and block and timber suspended ground floors it is not necessary to introduce a vapour control layer as long as adequate subfloor cross ventilation is provided Surface condensation not exceed 0 7 W m K at any point and the junctions with walls are designed in accordance with Limiting thermal bridging and air leakage Robust construction details for dwellings and similar buildings TSO 2002 BRE Information Paper IP1 06 or section 5 2 of this Certificate WS Floors will adequately limit the risk of surface condensation when the thermal transmittance U value does not exceed 1 2 W m K at any point Guidance may by obtained from BS 5250 2002 section 8 or section 5 2 of this Certificate Additional information can be found in BRE Report BR 262 2002 Thermal insulation avoiding risks NS Floors will adequately limit the risk of surface condensation when the thermal transmittance U value does 7 Behaviour in relatio
6. incorporating the product can contribute to satisfying these Regulations See sections 5 1 and 5 2 of this Certificate 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 obligations under these Regulations See seclion 2 Delivery and site handling 2 4 of this Certificate Non regulatory Information NHBC Standards 2010 NHBC accepts the use of Xtratherm Safe R Underfloor Insulation when installed and used in accordance with this Certificate in relation to NHBC Standards Chapter 5 1 Substructure and ground bearing floors Page 2 of 12 Technical Specification 1 Description 1 1 Xtratherm Safe R Underfloor Insulation comprises rigid phenolic board with a composite foil facing on both sides 1 2 The boards have the nominal characteristics as shown in Table 1 Table 1 Nominal characteristics Length mm 2400 Width mm 1200 Thickness mm 50 to 120 in 5 mm increments Minimum compressive strength at 10 compression kPa 150 Edge profile Square 1 3 Ancillary items used with the product are e saddle clips galvanized nails pretreated battens acrylic adhesive foil tape damp proof membrane e vapour control layer 2 Delivery and site handling 2 1 The product is delivered to site in polyethylene shr
7. not be used in direct contact with electrical heating cables or hot water pipes 3 2 Where the product is installed on a floor of a suspended beam and block design all services must be installed in accordance with the Agr ment Certificate for that floor and or with the relevant codes of practice 3 3 Where possible electrical conduits gas and water pipes or other services should be contained within ducts or channels within the concrete slab Where this is not possible the services may be accommodated within the product provided they are securely fixed to the concrete slab Electrical cables should be enclosed in a suitable conduit With hot pipes the product must be cut back to maintain an air space 3 4 Where water pipes are installed below the product they should be prelagged Pipes installed above the product do not require lagging although some provision may be needed for expansion and contraction 3 5 In situations where access to the services is desirable on board overlay floors a duct may be formed by mechanically fixing to the floor timber bearers of the same thickness as the product to provide support for a particle board cover The duct should be as narrow as possible and not exceed 400 mm in width or the maximum particle board spans given in DD CEN TS 12872 2007 without intermediate support Services should be suitably fixed to the floor base and not to the product see section 5 2 with regard to limiting heat loss
8. 03 Wood based panels Floating floors Test methods Page 10 of 12 Conditions of Certification 16 Conditions 16 1 This Certificate relates only to the product system that is named and described on the front page is granted only to the company firm or person named on the front page no other company firm or person may hold or claim any entitlement to this Certificate is valid only within the UK li to be read considered and used as a whole document it may be misleading and will be incomplete to be selective is copyright of the BBA is subject to English law 16 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 16 3 This Certificate will remain valid for an unlimited period provided that the product system and the manvfacture and or fabrication including all related and relevant processes thereof are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA continue to be checked as and when deemed appropriate by the BBA under arrangements that it will determine are reviewed by the BBA as and when it co
9. 23 See section 8 1 of this Certificate Standard 3 115 Condensation Comment The product can adequately limit the risk of surface condensation with reference to clauses 3 15 1012 3 15 4012 and 3 15 5012 See sections 6 1 and 6 5 of this Certificate Standard 6 1 b Carbon dioxide emissions Standard or Building insulation envelope Comment The product can contribute to satisfying clauses or parts of 6 1 60 6 2 12 6 2 31 6 2 42 6 2 50 6 2 60 6 2 71 to 6 2 1 12 6 2 1 28 and 6 2 1302 of these Standards See sections 5 1 and 5 2 of this Certificate Regulation 12 Building standards conversions Comment All comments given for this product under Regulation 9 also apply to this Regulation with reference to clause 0 12 1 and Schedule 6 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic fA The Building Regulations Northern Ireland 2000 as amended 2 Regulation B2 Fitness of materials and workmanship Comment The product is acceptable See section 10 and the Installation part of this Certificate Regulation C5 Condensation Comment The product can adequately limit the risk of surface condensation See section 6 1 of this Certificate Regulation D1 Stability Comment The product has adequate strength and stiffness See section 8 1 of this Certificate Regulation F2 a i Conservation measures Regulation F3 2 Target carbon dioxide Emissions Rate Comment Floors
10. S 12872 2007 2 6 An expansion gap between the overlay board and the perimeter walls should be provided at the rate of 2 mm per metre run or a minimum of 1O mm whichever is the greater 2 7 Where there are long uninterrupted lengths of floor eg corridors proprietary expansion joints should be installed at intervals on the basis of a 2 mm gap per metre run of overlay board 2 8 Before the overlay boards are interlocked a waterproof PVA adhesive is applied to the joints 2 9 Once the overlay board is laid temporary wedges are inserted between the walls and the floor to maintain tight joints until the adhesive has set 2 10 When the wedges are removed and before the skirting boards are fixed a suitable compressible filler eg foamed polyethylene should be fitted around the perimeter of the floor between the overlay board and the walls 2 11 Where there is a likelihood of regular water spillage in rooms such as kitchens bathrooms shower and utility rooms additional particle board protection should be considered eg by a continuous flexible vinyl sheet flooring with welded joints turned up at abutments and cove skirting Page 8 of 12 Cement based screed overlay 12 12 Perimeter edge pieces are cut and placed around the edges and all floor joints taped or a polythene vapour control layer minimum 125 pm thick is laid over the product with 150 mm laps A compacted screed is then poured over to a depth of 65 mm for
11. S 8204 1 2003 and from the flooring manufacturer 9 Maintenance As the product is confined within the floor and it has suitable durability see section 10 maintenance is not required 10 Durability The product is rotproof and dimensionally stable when installed with the overlays specified in this Certificate it 133b vill remain effective as an insulating material for the life of the building in which it is incorporated Page 5 of 12 11 General 11 1 Installation of Xtratherm Safe R Underfloor Insulation must be in accordance with the Certificate holder s installation instructions and the requirements of this Certificate 11 2 Typical methods are shown in Figures 1 to 6 reference should also be made to BRE Report BR 262 2002 Figure 1 Ground supported concrete floor screed overlay Xtratherm Safe R 65 mm screed TCR 1 vapour control MEM 1 layer 2 a dampproof membrane e concrete slab e hardcore Figure 2 Suspended concrete floor screed overlay Xtratherm Safe R 65 mm screed pose eee ee damp proof membrane C C C ce concrete beam ventilated underfloor void Figure 3 Concrete slab overlay Xtratherm Safe R L concrete slab vapour control SSS Se layer Aa dom
12. a domestic dwelling and 75 mm for others The relevant clauses of BS 8204 1 2003 or BS 8204 2 2003 should be followed and BRE s Building Elements Floors amp Flooring Chapter 4 2 should be consulted Concrete slab overlay ground bearing only 12 13 Perimeter edge pieces are cut and placed around the edges and taped at joints A polythene vapour control layer minimum 125 pm thick is laid over the product with 150 mm laps The concrete slab is laid to the required thickness in accordance with BS 8000 9 2003 and BS 8204 1 2003 Suspended timber floors 2 14 Saddle dlips are placed at intervals not exceeding one metre along the timber floor joists Where the product is to be installed only on one side of a joist twin clips can be cut into single clips and nailed into place with galvanized nails 2 15 If saddle clips are not used the product may be retained using preservativetreated timber battens Battens should be wide enough to retain the product in place and secured in place with corrosion protected nails at a depth that will accommodate the thickness of the product 2 16 The product should be cut to fit tightly between joists and pushed down onto the spikes of the saddle clips or onto the beads Small gaps should be insulated with cut strips of the product 13 Incorporation of services 3 1 Derating of electrical cables should be considered where the insulation restricts air cooling of cables and the product must
13. f surface condensation on floors see section 6 Floor loading the product when covered with a suitable floor covering is capable of resisting a uniformly distributed load of 4 kN m and a concentrated load of 1 5 kN without undue compression deflection The compressive strength of the product at 10 compression exceeds 150 kPa see section 8 Durability the product when installed with the overlays specified will remain effective as an insulating material for the life of the building in which it is incorporated see section 10 The BBA has awarded this Agr ment Certificate to the company named above for the product described herein The product has been assessed by the BBA as being fit for its intended use provided it is installed used and maintained as set out in this Certificate On behalf of the British Board of Agr ment crac LL Date of First issue 14 December 2010 Simon Wroe Greg Cooper Head of Approvals Physics Chief Executive 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 contacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Garston Wat
14. f the manufacture supply installation use and maintenance of this product system Page 11 of 12 British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Garston Watford email mail amp bba star co uk Herts WD25 9BA website www bbacerts co uk Page 12 of 12
15. ford e mail mail amp bba star co uk Herts WD25 9BA website www bbacerts co uk Page 1 of 12 Regulations In the opinion of the BBA Xtratherm Safe R Underfloor 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 3 The Building Regulations 2010 England and Wales Requirement Al Loading Comment The product has adequate strength and stiffness See section 8 1 of this Certificate Requirement C2 c Resistance to moisture Comment The product can adequately limit the risk of surface condensation See sections 6 1 and 6 4 of this Certificate Requirement L1 a i Conservation of fuel and power Comment The product can contribute to meeting this Requirement See sections 5 1 and 5 2 of this Certificate Requirement Regulation 7 Materials and workmanship Comment The product is acceptable See section 10 and the Installation part of this Certificate r The Building Scotland Regulations 2004 as amended 5 Regulation 8 1 Fitness and durability of materials and workmanship Comment The product can contribute to a construction satisfying this Regulation See section 10 and the Installation part of this Certificate Regulation 9 Building standards construction Standard 1 1 a b Structure Comment The product has adequate strength and stiffness with reference to clause 1 1 10
16. inkwrapped packs containing a label bearing the manufacturer s trade name product description and the BBA identification mark incorporating the number of this Certificate 2 2 Care must be taken to avoid damaging corners and edges 2 3 The product 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 If stored outside the product should be stacked flat and raised above ground level and not in contact with ground moisture 2 4 The product must not be exposed to open flame or to other ignition sources Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Xtratherm Safe R Underfloor Insulation 3 General 3 1 Xtratherm Safe R Underfloor Insulation is for use on ground supported or suspended concrete ground floors or between the joists of suspended timber ground floors in new and existing domestic or similar buildings 3 2 The product is effective in reducing the thermal transmittance U value of new or existing ground floors 3 3 Ground supported concrete floors incorporating the product must include a suitable damp proof membrane laid in accordance with the relevant clauses of CP 102 1973 BS 8102 1990 and or BS 8215 1991 3 4 Suspended concrete or timber ground floors incorporating the product must include a damp proof membra
17. ion and other sources of dampness the product and overlays should only be laid after the construction is made substantially weathertight eg after glazing During construction the product must also be protected from water spillage plaster droppings and traffic 1 The product can be cut using a sharp knife or fine toothed saw to fit around service penetrations 12 Procedure 2 1 The product is cut to size as necessary and laid with closely butted staggered cross joints ensuring that all spaces are completely filled 2 2 The laying pattern should ensure that all cut edges are at the perimeter of the floor or some other feature eg mat wells thresholds or access ducts Spreader boards should be used to protect the product Timber based board overlay 2 3 Before laying the timber overlay pretreated timber battens in accordance with BS 1282 1999 are positioned at doorways access panels and to support partitions Adequate time should be allowed for solvents from solventbased preservatives to evaporate 2 4 When the dpc is laid below the slab a vapour control layer of polyethylene sheet of minimum thickness 250 ym is laid between the product and the overlay boards The polyethylene sheet must have 150 mm overlaps taped at the joints and turned up 100 mm at the walls 2 5 Tongue and groove 18 mm thick plywood particle board type P5 to P7 or OSB 2 to OSB 4 is laid with staggered cross joints in accordance with DD CEN T
18. n to fire When properly installed the product will not add significantly to any existing fire hazard The product will be contained within the floor by the overlay until the overlay itself is destroyed Therefore the product will not contribute to the development stages of a fire or present a smoke or toxic hazard 8 Floor Loading 8 1 The product is suitable for use in domestic or similar buildings When covered with a suitable floor covering 133 is capable of resisting a uniformly distributed load of 4 kN mr and a concentrated load of 1 5 kN for category A and B and type A and B situations for domestic and residential activities as defined in BS EN 1991 1 1 2002 Table NA 2 and it s National Annex and BS 6399 1 1996 Table 1 respectively Further assessment is necessary in the case of duty walkways and floors subject to physical activities 8 2 Where the product is used in non domestic situations or where the floor is subject to loads greater than those defined in section 8 1 the ability of the floor construction to resist the loads in service should be confirmed by the flooring overlay specification The performance of the floor construction will depend on the insulation properties point loads particularly at edges and corners or impact loads and type of floor covering used including thickness and strength Further guidance on the suitability of floor coverings can be found in BS EN 13810 1 2002 DD CEN TS 13810 2 2003 B
19. ne or suitable ventilation of the subfloor as appropriate 3 5 The overlay to the product should be acementbased floor screed laid in accordance with the relevant clauses of BS 8204 1 2003 and or BS 8204 2 2003 and BS 8000 9 2003 or e wood based floor eg tongue and groove flooring grade particle board Type P5 or P7 to BS EN 312 2003 or oriented strand board of type OSB 3 or OSB 4 to BS EN 300 2006 18 mm thick minimum installed in accordance with DD CEN TS 12872 2007 or a concrete slab in accordance with BS 8204 1 2003 and BS 8204 2 2003 4 Practicability of installation The product is designed to be installed by a competent general builder or a contractor experienced with this type of product Page 3 of 12 5 Thermal Performance l 5 1 Calculations of the thermal transmittance U value of a floor should be carried out in accordance with BS EN ISO 6946 2007 BS EN ISO 13370 2007 and BRE Report BR 443 2006 Conventions for U value calculations using the declared thermal conductivity X555 values shown in Table 2 The U value of a floor will depend on the thickness of the products the perimeter area ratio and the floor type U values of example floors are shown in Table 3 and typical design roof U values in Tables 4 to 6 Table 2 Thermal conductivity Insulation thickness mm Thermal conductivity Wm K 1J 50 and 55 0 023 60 to 75 0 022 80 to 120 0 021 Table 3 Floor U values
20. nsiders appropriate 16 4 In granting this Certificate the BBA is not responsible for ihe presence or absence of any patent intellectual property or similar rights subsisting in the product system or any other product system the right of the Certificate holder to manufacture supply install maintain or market the product system individual installations of the product system including the nature design methods and workmanship of or related to the installation e he actual works in which the product system is installed used and maintained including the nature design methods and workmanship of such works 16 5 Any information 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 Certificate nor is conformity with such information to be taken as satisfying the requirements of the 1974 Act or of any statutory common law or other duty of care In granting this Certificate 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 o
21. ons and reconstructions 0 20 New non domestic limit 0 22 Notional non dwelling 0 25 Conversion of heated building 0 25 1 Flexible approaches on existing buildings are given in the Technical Handbooks Page 4 of 12 Table 6 Mean design floor U values Northern Ireland Construction U value Wm Existing buildings new floors 0 22 Notional dwelling 0 25 Building new build limit 0 25 Notional non domestic building 0 25 Existing building replaced renovated or retained floor 0 25 1 Flexible approaches on existing buildings are given in the Technical Booklets 5 2 The product can contribute to maintaining continuity of thermal insulation at junctions between elements For Accredited Construction Details the corresponding psi values in BRE Information Paper IP1 06 Assessing the effects of thermal bridging at junctions and around openings Table 3 may be used in carbon emission calculations in Scotland and Northern Ireland Detailed guidance for other junctions and on limiting heat loss by 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 6 Condensation Interstitial condensation
22. p L proof membrane Ol x p PS N QQ SN sand blinding hard core Page 6 of 12 Figure 4 Ground supported concrete floor board overlay Xtratherm Safe R particle board OSB vapour control layer ME IEOETIT me ESS pee ee ES lt t damp proof z m e membrane concrete slab hard core Figure 5 Suspended concrete floor board overlay Xtratherm Safe R i particle board OSB Se ee See eee Fre pL a damp proof membrane C C C P concrete beam ventilated underfloor void Figure 6 Suspended timber floors timber batten floor deck Xtratherm SafeR joists ventilated underfloor void i a saddle clips Page 7 of 12 3 All concrete floor surfaces should be smooth level and flat to within 5 mm when measured with a 2 metre straightedge Irregularities greater than this must be removed Minor irregularities up to 10 mm deep may be levelled with mortar or thin screed 4 n ground supported concrete floors the concrete floor slab over which the product is laid should be left for as long as possible to maximise drying out and the dissipation of construction moisture in accordance with BS 8203
23. u floorings Concrete bases and cement sand levelling screeds to receive floorings Code of practice BS 8204 2 2003 Screeds bases and in situ floorings Concrete wearing surfaces Code of practice BS 8215 1991 Code of practice for design and installation of damp proof courses in masonry construction BS EN 300 2006 Oriented Strand Boards OSB Definitions classification and specifications BS EN 312 2003 Particleboards Specifications BS EN 1991 1 1 2002 Eurocode 1 Actions on structures General actions Densities sel weight imposed loads for buildings NA to BS EN 1991 1 1 2002 UK National Annex to Eurocode 1 Actions on structures General actions Densities sel weight imposed loads for buildings BS EN 13166 2008 Thermal insulation products for buildings Factory made products of phenolic foam PF Specification BS EN ISO 6946 2007 Building components and building elements Thermal resistance and thermal transmittance Calculation method BS EN 13810 1 2002 Wood based panels Floating floors Performance specifications and requirements BS EN ISO 13370 2007 Thermal performance of buildings Heat transfer via the ground Calculation methods CP 102 1973 Code of practice for protection of buildings against water from the ground DD CEN TS 12872 2007 Wood based panels Guidance on the use of load bearing boards in floors walls and roofs DD CEN TS 13810 2 20
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