Lapolla Industries, Inc. LAPOLLA CAVITY FILL INSULATION
Contents
1. following approval by the Certificate holder and is subject to the BBA Assessment and Surveillance Scheme for Installation of Cavity Wall Insulation e approved by the Certificate holder and the BBA to install the product e having undertaken to comply with the Certificate holder s installation procedure e employing technicians who have been issued with appropriate identity cards by the Certificate holder at least one member of each installation team must carry a car e subject to inspections by the Certificate holder The Certificate holder oversees the activities of approved installers operating under the BBA Surveillance Scheme for Cavity Wall Insulation It is a requirement that the Certificate holder undertakes inspections to each card carrying technician using their product and maintains records as detailed in the BBA Assessment and Surveillance Scheme for BBA Approved Installers of Cavity Wall Insulation 16 Supervision 16 1 Installation of the product should be carried out in accordance with the BBA Assessment and Surveillance Scheme for Installation of Cavity Wall Insulation Page 6 of 10 16 2 During installation the following simple checks can be made as an aid to determining that the installation conforms to the certificated method e the pattern of holes complies with the description given in section 17 4 17 5 and 17 6 e injection of material takes place in each shot hole to complete the filling of the cavity spac2. reduced and that uninsulated areas will also be subject to a slightly higher risk of condensation 18 Tests Tests were carried out on Lapolla FOAMLOK Cavity Fill Insulation and the results assessed to determine e thermal conductivity e adhesion between foam and masonry e foam density e water vapour permeability of the foam e shear strength e dimensional stability e compressive strength e resistance to penetration of liquid water e adequacy of fill of a cavity space 19 Investigations 19 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 19 2 The company s training arrangements were examined and approved 19 3 A condensation risk analysis was carried out 19 4 A series of U value calculations was carried out 19 5 A calculation was undertaken to confirm the thermal conductivity A erica i Bibliography BS 5250 2011 Code of practice for control of condensation in buildings BS EN 14318 1 2013 Thermal insulating products for buildings In situ formed dispensed rigid polyurethane PUR and polisocyanurate PIR foam products Specification for the rigid foam dispensed system before installation BS EN 14318 2 2013 Thermal insulating products for buildings In situ formed dispensed rigid polyurethane PUR and polisocyanurate PIR foam products Specification for the installe
3. s offices Particular problems are specifically identified and any reasons for rejection of the work noted Care should be taken at this stage for the assessor and the party commissioning the work to identify and agree in writing as appropriate any areas of the wall that will not be filled see section 17 14 and any special requirements for making good see section 17 11 14 Site preparation 4 1 The installing operative ensures that the property has been correctly assessed and is suitable for insulation with the product Any problems encountered during installation which prevent compliance with this Certificate are referred to the installation company before proceeding 4 2 Essential ventilation openings such as those providing combustion air or underfloor ventilation and all flues the cavity wall must be checked If adequate sleeving or other cavity closures are not present installation must not proceed until these openings have been sleeved or otherwise modified to prevent blockage by the insulant 4 3 All gaps and cracks in the inner and outer leaves and the tops of uncapped cavities are sealed where possible to limit any escape of the material during installation 15 Approved installers E Installation of the produc defined as a company 4 is carried out by the Certificate holder or their approved installers An approved installer is e required to satisfy an initial site installation check by the BBA
4. similar type colour texture and weathertighiness to that of the existing wall Where a wall requires a high degree of colour matching the level of finish matching should be agreed in writing during the site assessment All trunked air vents eg those providing underfloor ventilation and combustion air for heating appliances are checked any obstructions must be cleared All flues must be carefully checked by an appropriate test eg a smoke test to verify that they are clear and unobstructed 17 12 If the cavity is uncapped any insulant which has expanded over the top of the cavity into the loft space is removed The top of the insulant is then where possible isolated from the roof structure by suitably shaped plugs of mineral wool Page 8 of 10 Omitted areas 17 13 In some circumstances access for drilling injection holes and filling with insulation may be limited by features such as carports conservatories cladding or tiling The practicability of safely accessing and making good these areas or installing the insulation through the inner leaf may outweigh the benefits of insulating these areas 17 14 Itis permissible to omit such areas only when e a full justification detailing the reasons to omit areas is included in the survey report e the assessor obtains written consent for omitting any areas of the wall from the party commissioning the work The assessor must communicate that heat loss through uninsulated areas will not be
5. Northern Ireland 2012 5 Regulation 23 Fitness of materials and workmanship Comment The product is an acceptable material See section 12 and the Installation part of this Certificate Regulation 28 a Resistance to moisture and weather Comment The product can contribute to satisfying this Regulation See section 7 1 of this Certificate Regulation 28 b Resistance to moisture and weather Comment The product can contribute to satisfying this Regulation See sections 7 1 and 7 2 of this Certificate Regulation 29 Condensation Comment The product can contribute to satisfying this Regulation See section 8 3 of this Certificate Regulation 39 a i Conservation measures Regulation 40 2 Target carbon dioxide emission rate Comment The product can contribute to satisfying these Regulations See sections 6 1 and 6 3 of this Certificate Page 2 of 10 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 section 3 Delivery and site handling 3 1 to 3 3 of this Certificate Additional Information NHBC Standards 2014 In the opinion of the BBA the use of Lapolla FOAM LOK Cavity Fill Insulation in relation to this Certificate is not subject to the requirements of t
6. San Lapolla Industries Inc APPROVAL 15402 Vantage Parkway East INSPECTION Suite 322 TESTING CERTIFICATION Houston TECHNICAL APPROVALS FOR CONSTRUCTION Texas arent 219 4100 Fax 001 281 219 4106 Parement Scat el ax email info lapolla com 14 5095 website www lapolla com Product Sheet 1 LAPOLLA CAVITY FILL INSULATION LAPOLLA FOAM LOK CAVITY FILL INSULATION This Agr ment Certificate Product Sheet relates to Lapolla FOAMLOK Cavity Fill Insulation a rigid polyurethane foam injected in liquid form for use in external masonry walls up to and including 12 metres in height with cavity widths not less than 40 mm and not greater than 150 mm in existing domestic and non domestic buildings 1 Hereinafter referred to as Certificate CERTIFICATION INCLUDES e factors relating to compliance with Building Regulations where applicable e factors relating to additional non regulatory information where applicable e independently verified technical specification e assessment criteria and technical investigations e design considerations e installation guidance e regular surveillance of production e formal three yearly review KEY FACTORS ASSESSED Thermal performance the product has an estimated thermal conductivity A amag Of 0 033 W m K see section 6 Water resistance the product will resist the transfer of precipitation to the inner leaf see section 7 Condensatio
7. a cavity tray or similar waterproof barrier e when treating properties where the wall to be insulated is below a waterproof cladding eg tile hung and this cladding either extends up to the roof or is protected at the top by other means eg window sills e when treating areas of wall where access for drilling may be limited by features such as carports and conservatories as defined in sections 17 13 and 17 14 5 Practicability of installation The product must be installed by operatives trained and approved by the Certificate holder and subsequently approved by the BBA The Certificate holder operates an Approved Installer Scheme for this system under which the installers are approved registered and regularly reviewed by the Certificate holder to demonstrate that they are competent to carry out installations of the system in accordance with this Certificate Details of Approved Installers are available from the Certificate holder Approved Installers are responsible for each installation of the product that they undertake see section 15 1 The Certificate holder s records relating to their Approved Installer Scheme will be audited annually by the BBA as part of its programme of surveillance 6 Thermal performance out in accordance with BS EN ISO 6946 2007 and BRE Report BR 443 2006 using the insulation s Ao Calculations of the thermal transmittance U value of specific external wall constructions should be carried est
8. combustion However the instructions contained in this Certificate relating to the sealing of an uncapped cavity and the removal of any insulant present in the loft space after installation section 17 12 must be carefully followed 9 2 The requirements of the Building Regulations relating to fire spread in cavity walls can be met in buildings of all purpose groups without the need for cavity barriers provided the construction complies with the provisions detailed in England and Wales Approved Document B Volume 1 Diagram 13 and Volume 2 Diagram 34 Northern Ireland Technical Booklet E Diagram 4 5 9 3 For buildings subject to the Building Standards in Scotland cavity barriers are not required to limit the area of a cavity or at junctions with other wall cavities However cavity barriers are required around openings penetrations and junctions with roof or floor cavities with reference to clauses 2 4 1021 2 4 202 2 6 5 and 2 6 61 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 9 4 For constructions not covered by sections 9 2 and 9 3 cavity barriers must be provided to comply with England and Wales Approved Document B Volume 1 Section 6 and Volume 2 Section 9 Scotland Mandatory Standard 2 4 clauses 2 4 1021 and 2 4 2012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet E Paragraphs 4 36 to 4 39 Pag
9. d drilling pattern 17 5 The pattern should be adjusted for wide cavities and in areas near to building features of the wall such as party walls and openings where holes should be 225 mm from the feature edge and continued vertically with 225 mm spacing When dealing with a dividing line of an attached property which is not being insulated it is essential to leave a vertical boundary of polyurethane foam adjacent to the neighbouring cavity so that water running down the untreated cavity will not collect at any point on the edge of the filled area Typical drilling patterns are shown in Figure 1 and 2 Figure 1 Typical drilling patterns 225 mm 225 mm 1 brick 1 brick a 225 mm gi 3 bricks 450 mm staggered drilling pattern 2 bricks drilling pattern at roof level 450 mm 2 bricks window opening 225 mm 3 bricks 225 mm 3 bricks 1 brick drilling pattern at a party wall door and window frame drill pattern Page 7 of 10 Figure 2 Typical drilling pattern 225 mm 1 brick shot holes change clean adapter between blue and red colour shot holes final shot holes sight holes not part of pour pattern but used to make sure the foam has reached the wall edge properly 225 mm 3 bricks 450 mm 2 bricks Sight Holes 17 6 Sight holes should be placed at each end of the wall and located 125 mm from the edge and 225 mm from the bottom to e
10. d insulation products BS EN ISO 6946 2007 Building components and building elements Thermal resistance and thermal transmittance Calculation method BRE Information Paper IP 1 06 Assessing the effects of thermal bridging at junctions and around openings BRE Report BR 262 2002 Thermal insulation avoiding risks BRE Report BR 443 2006 Conventions for U value calculations Page 9 of 10 Conditions of Certification 20 Conditions 20 1 This Certificate e relates only to the product system that is named and described on the front page e is issued only to the company firm organisation or person named on the front page no other company firm organisation or person may hold or claim that this Certificate has been issued to them 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 20 2 Publications documents specifications legislation regulations standards and the like referenced in this Certificate are those that were current and or deemed relevant by the BBA at the date of issue or reissue of this Certificate 20 3 This Certificate will remain valid for an unlimited period provided that the product system and its manufacture and or fabrication including all related and relevant parts and processes thereof e are maintained at or above the levels which have b
11. e 17 Procedure Injection equipment 17 1 The installer provides all required materials and equipment for the installation plus material for cosmetic repair of the wall at the completion of the injection process The injection equipment is comprised of an airdriven hydraulic or electrically driven proportioning device capable of delivering the material at the required pressure and temperature 17 2 The isocyanate and resin is mixed at a ratio of 1 1 by volume This product is injected into the wall using a spray gun with a 42 42 mix chamber and metal directional injection adapter to ensure material is correctly installed into the cavity Injection holes 17 3 The injection holes should be 12 mm in diameter and drilled into the exterior leaf into the mortar joints 17 4 The first injection hole should be 225 mm above the dpc ie the height of 3 bricks and at a maximum of 450 mm from the edge of the wall ie 2 brick lengths This row of injection holes continues across the wall with the holes located a maximum of 450 mm apart The second row should be started 225 mm above the first row with the first hole located 225 mm from the edge of the wall ie one brick length The remaining holes in this row should be spaced a maximum of 450 mm apart The rows are continued in this manner until the top of the wall is reached A staggered pattern of holes should be achieved to ensure complete fill of the cavity wall see Figure 1 for example of staggere
12. e 5 of 10 relevant boundary when installed in a cavity that is between two leaves of masonry or concrete at least 75 mm fde The product is not classified as non combustible but may be used in a wall on or less than 1 m from a thick and which has a cavity barrier around all openings in the wall and at the top of the wall head 10 Proximity of flues and appliances When installing the product in close proximity to certain flue pipes and or heat producing appliances the relevant provisions of the national Building Regulations are applicable England and Wales Approved Document J Scotland Mandatory Standard 3 19 clauses 3 19 12 to 3 19 9012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet L 11 Maintenance As the product is confined within the wall cavity and has suitable durability see section 12 maintenance is not required 12 Durability Ai product is unaffected by the normal conditions in a wall and is durable rot proof water resistant and 53 sufficiently stable to remain effective as insulation for the life of the building 13 Site assessment Prior fo the installation an assessment must be carried out by a trained assessor who may also be the installing technician to ascertain the suitability of the property or properties to receive Lapolla FOAMLOK Cavity Fill Insulation An assessment report is prepared and held at the installer
13. e handling 3 1 The two components are delivered to site in drums typically 227 kg capacity bearing the product name and batch number 3 2 Drums should be stored between 10 C and 32 C away from possible ignition sources and protected from frost 3 3 The isocyanate is classified as harmful and the polyol a component contained in the resin as an irritant under The Chemicals Hazard Information and Packaging for Supply Regulations 2009 CHIPA Classification Labelling and Packaging of Substances and Mixtures CLP Regulation 2009 The packaging must bear the appropriate hazard warning labels When cured Lapolla FOAMLOK Cavity Fill Insulation does not constitute a hazard Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Lapolla FOAMLOK Cavity Fill Insulation 4 General 4 1 Lapolla FOAMLOK Cavity Fill Insulation is satisfactory for use as an injected cavity wall insulation and is effective in reducing the thermal transmittance U value of external cavity walls with masonry inner and outer leaves where masonry includes clay and calcium silicate bricks concrete blocks and natural and reconstituted stone blocks The product is for use in existing domestic and non domestic buildings up to and including 12 metres in height with cavity widths not less than 40 mm and no greater than 150 mm It is essential that such walls are designed and constructed
14. een 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 20 4 The BBA has used due skill care and diligence in preparing this Certificate but no warranty is provided 20 5 In issuing this Certificate the BBA is not responsible and is excluded from any liability to any company firm organisation or person for any matters arising directly or indirectly from 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 to manufacture supply install maintain or market the product system e actual installations of the product system including their nature design methods performance workmanship and maintenance e any works and constructions in which the product system is installed including their nature design methods performance workmanship and maintenance e any loss or damage including personal injury howsoever caused by the product system including its manufacture supply installation use maintenance and removal e any claims by the manufacturer relating to CE marking 20 6 Any information relating to the manufacture supply installation use maintenance and removal of this product system which is contained or referred to in this Certi
15. estic and non domestic buildings in accordance with the exceptions permitted in the Standard with reference to clauses 2 6 5 and 2 6 61 See section 9 5 of this Certificate Standard 3 4 Moisture from the ground Comment The product contributes to satisfying this Standard with reference to clause 3 4 1102 See section 7 1 of this Certificate Standard 3 10 Precipitation Comment The product can contribute to satisfying this Standard with reference to clause 3 10 1 provided it complies with the conditions set out in sections 7 1 and 7 2 of this Certificate Standard 3 15 Condensation Comment The product can contribute to satisfying this Standard with reference to clauses 3 15 1 2 3 15 4012 and 3 15 5012 See sections 8 2 and 8 3 of this Certificate Standard 6 1 b Carbon dioxide emissions Standard 6 2 Building insulation envelope Comment This product can contribute to satisfying clauses or parts of 6 1 1 6 1 2 6 1 6 6 1 10 6 2 12 O2 M ZAG 2526 2 6l 0270 OZEN OZO 02 OU Te 2 Mel 62 T12 cne 6 2 1302 of these Standards See sections 6 1 and 6 3 of this Certificate Regulation 12 Building standards applicable to conversions Comment Comments made in relation to the product under Regulation 9 Standards 1 to 6 also apply to this Regulation with reference to clause O 12 102 and Schedule 602 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 42 The Building Regulations
16. ficate is the minimum required to be met when the product system is manufactured supplied installed used maintained and removed It does not purport in any way to restate the requirements of the Health and Safety at Work etc Act 1974 or of any other statutory common law or other duty which may exist at the date of issue or reissue of this Certificate 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 British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Watford email mail bba star co uk Herts WD25 9BA website www bbacerts co uk Page 10 of 10
17. following Building Regulations the presence of a UK map indicates that the subject is related to the Building Regulations in the region or regions of the UK depicted 4 The Building Regulations 2010 England and Wales as amended 5 Requirement C2 a Resistance to moisture Comment The product can contribute to satisfying this Requirement See section 7 1 of this Certificate Requirement C2 b Resistance to moisture Comment The product can contribute to satisfying this Requirement See sections 7 1 and 7 2 of this Certificate Requirement C2 c Resistance to moisture Comment The product can contribute to satisfying this Requirement See sections 8 1 and 8 3 of this Certificate Requirement L1 a i Conservation of fuel and power Comment The product can contribute to satisfying this Requirement See sections 6 1 and 6 3 of this Certificate Regulation 7 Materials and workmanship Comment The product is an acceptable material See section 12 and the Installation part of this Certificate 5 k The Building Scotland Regulations 2004 as amended Regulation 8 1 Durability workmanship and fitness of materials Comment The product can contribute to satistying this Regulation See section 12 and the Installation part of this Certificate Regulation 9 Building standards applicable to construction Standard 2 6 Spread to neighbouring buildings Comment The product is not non combustible but may be used in walls of dom
18. hese Standards Technical Specification 1 Description 1 1 Lapolla FOAMLOK Cavity Fill Insulation is a yellow urethane foam compound 1 2 It is injected into the wall as a syrup from a hand gun through nominal 12 mm diameter holes spaced in a predetermined pattern 1 3 The material is foamed in situ by the mixing of isocyanate and resin components The resultant mix is soft and fluid but quickly expands within the cavity and hardens to a rigid foam mass 1 4 The product has an installed density in the range of 30 kgm to 40 kg m 2 Manufacture 2 1 A batch of materials are blended together to produce the liquid resin component which when mixed with the isocyanate component meets the requirements of BS EN 14318 1 2013 2 2 As part of the assessment and ongoing surveillance of product quality the BBA has e agreed with the manufacturer the quality control procedures and product testing to be undertaken e assessed and agreed the quality control operated over batches of incoming materials e monitored the production process and verified that it is in accordance with the documented process e evaluated the process for management of nonconformities e checked that equipment has been properly tested and calibrated e undertaken to carry out the above measures on a regular basis through a surveillance process to verify that the specifications and quality control operated by the manufacturer are being maintained 3 Delivery and sit
19. imated thermal conductivity Aimara Of 0 033 Wm K Note An estimated figure has been provided in the absence of an actual declared figure based upon the mean figure plus a correction factor of 0 005 W m7 K 6 2 Where an existing wall is subject to national Building Regulations for example subject to a material change of use designers should take account of the relevant guidance relating to technical and economic feasibility and target U values in the documents supporting those Regulations 53 gm insulating value of the internal block leaf finish Calculated U values for sample constructions are given in Table 2 4 The U value of a typical brick and block cavity wall construction will depend on the cavity width and the for existing buildings Table 2 Example cavity wall U values existing retained walls Cavity width U values W nr 2 K 1 sed iieness 13 mm dense plaster Plasterboard on dabs 100 mm dense block 100 mm AAC block AO 0 62 0 42 50 0 52 0 37 75 0 38 0 29 100 0 30 0 24 125 0 25 0 21 150 0 21 0 18 1 Assumes 102 mm thick brick outer leaf mild steel double riangle wall ties 12 5 mm at 2 5 m and 6 7 mortar 0 88 W m K bridging inner block leaf 2 Dense plaster 0 57 W m K 3 Dense block at 1 13 W mr K 4 AAC block at 0 12 W mr K Page 4 of 10 6 4 The product can maintain or contribute to maintaining continuity of thermal insulation at junctions between eleme
20. n the product will contribute to limiting the risk of surface condensation see section 8 Durability the product will have a life equivalent to that of the structure in which it is incorporated see section 12 The BBA has awarded this Certificate to the company named above for the product described herein This 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 Carte Qe ee Date of First issue 17 February 2014 John Albon Head of Approvals Claire Curtis Thomas Energy and Ventilation 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 Watford email mail bba star co uk Herts WD25 9BA website www bbacerts co uk Page 1 of 10 Regulations In the opinion of the BBA Lapolla FOAM LOK Cavity Fill Insulation if installed used and maintained in accordance with this Certificate can satisfy or contribute to satisfying the relevant requirements of the
21. nsation not exceed 0 7 W m K at any point and the junctions with floors roofs and openings are designed in accordance with Limiting thermal bridging and air leakage Robust construction details for dwellings and similar buildings TSO 2002 BRE Information Paper IP 1 06 or section 6 4 of this Certificate Walls will limit the risk of surface condensation adequately when the thermal transmittance U value does wall does not exceed 1 2 W m 2 K at any point and openings and junctions with other elements comply with the guidance given in BS 5250 2011 Annex G and section 6 4 of this Certificate Additional information can be found in BRE Report BR 262 2002 Interstitial condensation ane For buildings in Scotland constructions will be acceptable where the thermal transmittance U value of the 8 3 Walls will limit the risk of interstitial condensation adequately when they are designed and constructed in 73 accordance with BS 5250 2011 Annexes D and G 8 4 For the purposes of assessing the risk of interstitial condensation the water vapour resistivity of the product may be taken as approximately 380 MN s g m 9 Behaviour in relation to fire 9 1 The use of the product does not prejudice the fire resistance properties of the wall It is unlikely to become ignited within the cavity when used in the context of this Certificate If fire does penetrate into the cavity the amount of air present will be insufficient to support
22. nsure that the ends of the wall are completely filled These sight holes are not part of the standard injection pattern but are used to ensure the complete fill of the cavity The pattern is continued vertically to the top of the wall with each sight hole 450 mm apart in height Calibration shots 17 7 lt is essential that a calibration quality control shot be taken before installation and at the end of each hour of application to ensure correct shot size and foam quality including cream time gel time and density Injection procedure 17 8 In each of the main sections injection of foam should proceed horizontally ensuring that no injection hole is missed and that the cavity is fully filled from the bottom upwards The injection time for each hole should be based on cavity width and calibration shots as described in section 17 7 However as inspection of the shots occurs the time may be adjusted based on the actual filling of the wall to ensure a complete fill is attained 17 9 Polyurethane foam systems should not be injected into a hole for more than its cream time It is essential to use indicator sticks during the injection These should be placed in the holes at the injection point to establish the presence of the polyurethane foam system and after gelation removed 17 10 The installation manual should be referred to for each aspect of the procedure Finishing 17 11 After injection the drill holes are fully filled with mortar of a
23. nts For Accredited Construction Details the corresponding W values psi in BRE Information Paper IP 1 06 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 Also see SAP 2009 The Government s Standard Assessment Procedure for Energy Rating of Dwellings Appendix K and the iSBEM User Manual for new build Scotland Accredited Construction Details Scotland Northern Ireland Accredited Construction Details version 1 0 7 Water resistance 7 1 The product can be used in situations where it bridges the damp proof course dpc in walls dampness 3M from the ground will not pass through to the inner leaf provided the wall is detailed in accordance with the requirements and provisions of the national Building Regulations England and Wales Approved Document C section 5 Scotland Mandatory Standard 3 4 clause 3 4 1012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet C Sections 6 3 to 6 6 7 2 When the product is properly installed in accordance with this Certificate it will resist any water transfer across the cavity to the inner leaf 8 Condensation Surface conde
24. to incorporate the precautions given in this Certificate to prevent moisture penetration 4 2 The suitability of walls for insulation must be assessed in accordance with BS EN 14318 2 2013 Page 3 of 10 4 3 This Certificate covers the use of the product in any exposure zonel subject to the following conditions being met They are particularly important in areas which may experience severe or very severe driving rain e a site survey should be carried out prior to installation see sections 13 and 14 e the minimum cavity width must be not less than 40 mm e walls must be in a good state of repair and show no evidence of frost damage e mortar joints must not show evidence of more than hairline cracking Raked or recessed mortar joints should be avoided in very severe exposure areas 1 Exposure zones defined in BRE Report BR 262 2002 4 4 The product may be installed only where e there are no signs of dampness on the inner face of the cavity wall other than those caused solely by condensation and e the cavity is not being used as a source of combustion air or as a flue for ventilation purposes Partial filling omitted areas 4 5 Whenever practicable all of the cavity space from ground level to the roof or gable copings should be filled except e when separately insulating semi detached or terraced properties e up to the underside of a horizontal boundary other than the roof where that horizontal boundary is protected by
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