SEMPRE Farby Sp. z.o.o. SEMPRETHERM EXTERNAL WALL
Contents
1. 7 Strength and stability General 7 1 When installed on suitable walls the system can adequately transfer to the wall the selfweight and negative suction and positive pressure wind loads normally experienced in the United Kingdom 7 2 Positive wind load is transferred to the substrate wall directly by compression of the render and insulation 7 3 Negative wind pressure is resisted by the bond between each component The insulation boards are retained by the adhesive and supplementary fixings 7 4 The wind loads on the wall should be calculated in accordance with BS EN 1991 1 4 2005 Special FA A consideration should be given to locations with high wincload pressure coefficients as additional fixings may be necessary In accordance with BS EN 1990 2002 it is recommended that a load factor of 1 5 is used to determine the ultimate wind load to be resisted by the system 7 5 Assessment of structural performance for individual installations should be carried out by a suitably qualified and experienced individual to confirm that e the substrate wall has adequate strength to resist additional loads that may be applied as a result of installing the system ignoring any positive contribution from the system itself f E e the proposed system with associated supplementary fixing layout provides adequate resistance to negative wind loads until the adhesive is set and thereafter associated bond strength between adhesive and2. in accordance with this Certificate is effective in reducing the thermal transmittance U value of external masonry walls of new and existing buildings above the damp proof course dpc level It is essential that the detailing techniques specified in this Certificate are carried out to a high standard if the ingress of water into the insulation is to be avoided and the full thermal benefit obtained from the system Only details specified by the Certificate holder should be used 4 2 For improved thermal carbon emissions performance the designer should consider additional alternative fabric and or services measures 4 3 The system is for application to the outside of external walls of masonry or dense or nofines concrete construction on new or existing domestic and non domestic buildings with or without existing render up to 18 metres in height Prior fo installation of the system the wall should comply with section 14 of this Certificate AC New buildings subject to national Building Regulations should be constructed in accordance with the 53 relevant recommendations of e BS EN 1996 2 2006 in that the designer should select a construction appropriate to the local wind driven rain index paying due regard to the design detailing workmanship and materials to be used e BS 8000 3 2001 4 5 Other new buildings not subject to regulatory requirements should also be built in accordance with the Standards identitie
3. in the edge zone at the corners of the building 16 10 Holes are drilled into the substrate to the required depth through the insulation board and within the edge zone additional holes are drilled at the corners of each board resulting in six fixings per square metre within the edge zones Around openings additional fixings should be installed as determined by the system designer see Figure 7 The mechanical fixings are inserted and tapped firmly into place securing the boards to the substrate 6 11 To fit around details such as doors and windows insulation boards may be cut with a sharp knife or a fine tooth saw If required purposemade window sills are fitted designed to prevent water ingress and incorporate drips to shed water clear of the system 6 12 Installation continues until the whole wall is completely covered including where appropriate the building soffits and eaves 6 13 Window and door reveals should be insulated to minimise the effects of cold bridging Where clearance is limited strips of approved insulation should be installed to suit available margins and details 6 14 Prior to the application of the render system a bead of joint sealant is gun applied at window and door frames overhanging eaves gas and electric meter boxes and wall vents or where the render abuts any other building material or surface 6 15 All corners are fixed with mesh angles installed with adhesive mortar Where appropriate
4. 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 ls 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 18 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 18 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 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 18 4 The BBA has used due skill care and diligence in preparing this Certificate but no warranty is provided 18 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 i
5. system can contribute to satisfying these Regulations See sections 6 2 and 6 3 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 section 3 Delivery and site handling 3 2 and 3 4 of this Certificate Additional Information NHBC Standards 2014 NHBC accepts the use of the SempreTherm EPS External Wall Insulation Bonded System provided it is installed used and maintained in accordance with this Certificate in relation to NHBC Standards Part 6 Superstructure Chapter 6 9 Curtain Walling and Cladding Technical Specification 1 Description 1 1 SempreTherm EPS External Wall Insulation Bonded System consists of insulation boards adhesively fixed direct to the substrate wall with supplementary mechanical fixings reinforced basecoat and render finishes see Figure 1 It is made up of the following components Adhesive e Sempre Start TS 100 a cementbased powder requiring the addition of clean water from 0 2 litre kg to 0 22 litre kg and mixed with a high speed mixer for 3 to 5 minutes e Sempre Universal TU 200 a cement based powder requiring the addition of clean water from 0 22 litre kg to 0 24 litre kg and mixed with a high speed mixer for 3 to 5 minutes In
6. the system is considered suitable for use on or at any distance from the boundary f 8 5 For flats and maisonettes and non domestic building in Scotland the system is suitable only for use more Zip athan one metre from the boundary 8 6 The system is not classified as non combustible therefore calculations for unprotected areas may apply dependent on the fire resistance characteristics of the wall 8 7 For application to second storey walls and above it is recommended that the designer considers at least one stainless steel fixing per square metre and fire barriers in line with compartment walls and floors as advised in BRE Report BR 135 2013 see Figure 2 of this Certificate Page 8 of 18 Figure 2 Fire barrier details insulation board 200 mm Lamella fire break at party wall adhesive basecoat 200 mm Lamella fire break at compartment section fire rated fixing at 400 mm centres primer basecoat ____ finish render reinforcing mesh 9 Proximity of flues and appliances When the system is installed in close proximity to certain flue pipes the relevant provisions of the national Building Regulations should be met England and Wales Approved Document J Scotland Mandatory Standard 3 19 clause 3 19 4012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet L 10 Water resistance en
7. 4 of this Certificate Spread to neighbouring buildings The system can satisfy this Standard with reference to clauses 2 6 4012 2 6 5 and 2 6 61 See sections 8 1 to 8 6 of this Certificate Spread on external walls The system can satisfy this Standard and is acceptable for use more than one metre from a boundary with reference to clauses 2 7 1013 2 7 2123 and Annex 2A See sections 8 1 to 8 6 of this Certificate Precipitation The system will contribute fo a construction satisfying this Standard with reference to clauses 3 10 102 and 3 10 2012 See sections 4 4 and 10 1 of this Certificate Condensation The system can contribute to satisfying this Standard with reference to clauses 3 15 12 3 15 12 and 3 15 5012 See sections 11 3 and 11 4 of this Certificate Carbon dioxide emissions Building insulation envelope The system can contribute to satisfying these Standards with reference to clauses or parts of 6 1 10 208 6 1 3 Gi eM e 102 0 2 M2 6 2 31 ODA 2352 O26 O27 2134 6 2 92 6 2 10 6 2 11 6 2 1212 and 6 2 1 3 l2 See sections 6 2 and 6 3 of this Certificate Statement of sustainability The system can contribute to satisfying the relevant requirements of Regulation 9 Standards 1 to 6 and therefore will contribute to a construction meeting the bronze level of sustainability as defined in this Standard In addition the system can contribute to a construction meeting a higher level of sustaina
8. Figure 4 Alternatively it can be applied over the entire face of the insulation board using a notched trowel Figure 4 Insulation boards adhesive pattern approximately 120 mm g are Rome approximately 30 mm O 3 16 8 The first run of insulation boards are placed on the base profile with adhesive applied The boards must be pressed firmly against the wall and butted tightly together and aligned to achieve a level finish boards are positioned so that the vertical board joints are staggered and overlapped at the bui that the board joints do not occur within 200 mm of the corners of openings see Figure 5 Join Subsequent rows of ding corners and so ts between boards greater than 2 mm should be filled with slivers of insulation board or low density polyurethane foam Gaps greater than 10 mm should be closed by repositioning or where appropriate by cutting boards to fit Any high spots or irregularities are removed by lightly planing with a rasp over the whole surface Alignment shou proceeds Page 12 of 18 d be checked as work Figure 5 Typical arrangement of insulation boards 16 9 Supplementary mechanical fixings are applied through the insulation board into the substrate wall with two fixings through the insulation on the entire wall resulting in three fixings per square metre Additional fixings are applied at each corner of the insulation
9. San APPROVAL SEMPRE Farby Sp z o o BBA TESTING CERTIFICATION ul Gen J Kustronia 60 TECHNICAL APPROVALS FOR CONSTRUCTION 43 301 Bielsko Biata ee 33 496 06 09 F 48 33 496 06 10 pene aes el ax email info semprefarby pl 14 5 1 59 website www semprefarby pl Product Sheet 1 SEMPRETHERM EXTERNAL WALL INSULATION SYSTEMS SEMPRETHERM EPS EXTERNAL WALL INSULATION BONDED SYSTEM This Agr ment Certificate Product Sheet relates to the e f a SempreTherm EPS External Wall Insulation Bonded System comprising white or grey EPS insulation boards adhesively fixed with supplementary mechanical fixings with a reinforced basecoat and render finishes It is suitable for use on the outside of external walls in new and 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 system can be used to improve the thermal performance of external walls and can contribute to meeting the requirements of the national Building Reg
10. application specific profiles are in installed to allow rainwater to drain away Movement joints 16 16 Generally movement joints are not required in the system but if an expansion joint is already incorporated in the substrate a movement joint must be provided in the insulation system see Figure 6 Figure 6 Vertical movement joint backing rod backing rod s t masonry hA a S eae ah ea ae eS ee ee ER gs Se i oe _ masonry Np movement bead with mesh y DE E EE adhesive insulation board adhesive reinforcing layer insulation board Torpin sapi i Eea Poil primer reinforcing layer ak e eat eset A wee Ve finish coat primer pica rie ara arate Eia A aay movement bead H finish coat L Pept 8 with mesh 20 mm minimum sae el ed ee Application of basecoat and reinforcement mesh 16 17 The basecoat is prepared with the required amount of water see section 1 then applied over the insulation boards using a stainless steel trowel and floated with a Darby float to an approximate thickness of 3 mm The reinforcement mesh with its concave surface to the wall is immediately embedded into the basecoat by trowelling from the centre to the edge and a light coat of basecoat is applied whilst still wet to ensure the mesh is free of wrinkles Page 13 of 18 Additional basecoat is then applied as required to ensure the mesh is completely covered and the required minimum
11. barriers 14 2 The survey should include tests conducted on the walls of the building by the Certificate holder or their approved installers to determine the pull out resistance of the proposed supplementary mechanical fixings An assessment and recommendation is made on the type and number of fixings required to withstand the building s expected wind loading based on calculations using the test data and pullout resistance see section 7 14 3 All modifications such as provision for fire barriers see section 8 and necessary repairs to the building structure must be completed before installation of the system commences 14 4 Surfaces should be sound clean and free from loose material The flatness of surfaces must be checked this may be achieved using a straightedge tool spanning the storey height Any excessive irregularities ie greater than 20 mm must be made good prior to installation to ensure that the insulation boards are installed with a smooth in plane finished surface 14 5 Where surfaces are covered with an existing rendering it is essential that the bond between the background and the render is adequate All loose areas should be hacked off and reinstated 14 6 On existing buildings purpose made sills must be fitted to extend beyond the finished face of the system New buildings should incorporate suitably deep sills 14 7 Internal wet work eg screeding or plastering should be completed and allowed t
12. bility as defined in this Standard with reference to clauses 7 1 4012 Aspect 12 and 20 7 1 62 Aspect 1012 and 20 and 7 1 7023 Aspect 1012 See section 6 2 of this Certificate Building standards applicable to conversions All comments given for the system 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 Page 2 of 18 The Building Regulations Northern Ireland 2012 5 Regulation 23 Fitness of materials and workmanship Comment The system is acceptable See section 13 1 and the Installation part of this Certificate Regulation 28 b Resistance to moisture and weather Comment Walls insulated with the system will satisfy this Regulation See sections 4 4 and 10 1 of this Certificate Regulation 29 Condensation Comment Walls insulated with the system will satisfy the requirements of this Regulation See sections 11 2 and 11 4 of this Certificate Regulation 30 Stability Comment The system can sustain and transmit wind loads to the substrate wall See section 7 4 of this Certificate Regulation 36 a External fire spread Comment The system has a low risk surface and can satisfy this Regulation See sections 8 1 to 8 4 of this Certificate Regulation 39 a i Conservation measures Regulation 40 Target carbon dioxide emission rate Comment The
13. co uk Herts WD25 BA website www bbacerts co uk Page 18 of 18
14. coat reinforcing mesh basecoat finish render primer PVC drip angle bead with mesh window frame PVC protection bead with mesh and seal movement bead finish render reinforcing mesh basecoat masonry substrate adhesive insulation board basecoat 16 28 On completion of the installation external fittings eg rainwater goods extended fixings that have been built into the system during installation Page 16 of 18 are securely fixed to timber grounds or 17 Investigations 17 1 The system was examined and assessed by an independent laboratory to determine e fire performance e bond strength e hygrothermal performance e resistance to frost e resistance to impact e water vapour permeability 17 2 An examination was made of data relating to e reaction to fire e thermal conductivity e the risk of interstitial condensation 17 3 The practicability of installation and the effectiveness of detailing techniques were examined 17 4 The manufacturing process was evaluated including the methods adopted for quality control and details were obtained of the quality and composition of materials used Bibliography BS 5250 2011 Code of practice for control of condensation in buildings BS 8000 3 2001 Workmanship on building sites Code of practice for masonry BS EN 1990 2002 Eurocode Basis of structural design BS EN 1991 1 4 2005 Euroco
15. d in section 4 4 4 6 The system will improve the weather resistance of a wall and provide a decorative finish However it should only be installed where there is no sign of dampness on the inner surface of the wall other than that caused solely by condensation 4 7 The effect of the installation of the insulation system on the acoustic performance of a construction is outside the scope of this Certificate 4 8 The fixing of rainwater goods satellite dishes clothes lines hanging baskets and similar items is outside the scope of this Certificate 4 9 External plumbing should be removed before installation and alterations made to underground drainage where appropriate to accommodate repositioning of the plumbing to the finished face of the system 4 10 It is essential that this system is installed and maintained in accordance with the conditions set out in this Certificate 5 Practicability of installation The system should only be installed by specialised contractors who have successfully undergone training and registration by the Certificate holder see section 14 Note The BBA operates a UKAS Accredited Approved Installer Scheme for external wall insulation details of approved installer companies are included on the BBA website www bbacerts co uk 6 Thermal performance 6 1 Calculations of thermal transmittance U value should be carried out in accordance with BS EN ISO 6946 2007 and BRE Report BR 443 2006 usi
16. de 1 Actions on structures General actions Wind actions BS EN 1996 2 2006 Eurocode 6 Design of masonry structures Design considerations selection of materials and execution of masonry BS EN 13163 2008 Thermal insulation products for buildings Factory made products of expanded polystyrene EPS Specification BS EN 13501 1 2007 Fire classification of construction products and building elements Classification using test data from reaction to fire tests BS EN 13914 1 2005 Design preparation and application of external rendering and internal plastering External rendering 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 135 2013 Fire performance of external thermal insulation for walls of multistorey buildings BRE Report BR 262 2002 Thermal insulation avoiding risk BRE Report BR 443 2006 Conventions for U value calculations ETAG 004 2013 Guideline for European Technical Approval of Plastic Anchors for fixing of External Thermal Composite Systems with Rendering Page 17 of 18 Conditions of Certification 18 Conditions 18 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
17. ed 0 7 W m K at any point and the junctions with other elements and openings comply with section 6 3 of this Certificate A 11 3 Walls 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 be obtained from BS 5250 2011 section 4 and Annex G and BRE Report BR 262 2002 Page 9 of 18 Interstitial condensation 53M designed and constructed in accordance with BS 5250 2011 Section 4 and Annexes D and G 11 5 The water vapour resistance p factor for the insulation boards and equivalent air layer thickness S for the render systems is shown in Table 5 4 1 4 Walls incorporating the system will adequately limit the risk of interstitial condensation when they are Table 5 Water vapour resistance factor and equivalent air layer thickness Sy m P 20 to 40 83 EPS 70 Expanded polystyrene white grey Sempre Universal TU 200 basecoat Sempre Tesoro Grunt keycoat Sempre 0 65 Tesoro Tynk finish coat particle size 1 5 mm 2 Sempre Universal TU 200 basecoat Sempre Tesoro Grunt keycoat Sempre 0 93 Tesoro Tynk finish coat particle size 3 0 mm Sempre Universal TU 200 basecoat Sempre Maresil Grunt keycoat Sempre 0 22 Maresil Tynk finish coat particle size 3 0 mm 2 1 The basecoat is applied to a minimum thickness of 3 5 mm 2 Render system comprises basecoat rein
18. forcing mesh key coat and finish coat minimum thickness 5 mm which is based on particle size of 1 5 mm and maximum thickness 6 5 mm based on particle size of 3 mm 3 It is recommended that the lower figure is used when assessing the interstitial condensation risk 12 Maintenance and repair A 12 1 Regular checks should be made on the installed system including 5 e visual inspection of the render for signs of damage Cracks in the render exceeding 0 2 mm must be repaired e D lt xamination of the sealant around openings and service entry points isual inspection of architectural details designed to shed water to confirm that they are performing properly 4 sual inspection to ensure that water is not leaking from external downpipes or gutters such leakage could enetrate the rendering e a lt amp lt e necessary repairs effected immediately and the sealant joints at window and door frames replaced at regular intervals e maintenance schedules which should include the replacement and resealing of joints for example between the insulation system and window and door frame 12 2 Damaged areas must be repaired using the appropriate components and procedures detailed in the Certificate holder s installation instructions and in accordance with BS EN 13914 1 2005 13 Durability 13 1 The system will have a service life of not less than 30 years provided any damage to the surface finish is 53M epaired immed
19. he area is also included and a board emissivity of 0 9 together with an external render thickness of 5 mm with 1 Werr K 1 2 Calculations based on a bonded system that included 3 galvanized steel fixings per square metre with 8 mm diameter sleeve and with a point thermal transmittance X 0 004 W K per steel pin Use of other types of fixings should be calculated in accordance with BS EN ISO 6946 2007 3 Based upon incremental insulation thickness of 10 mm 4 U value calculations were based on having 3 fixings per square metre on the main section of the wall However by having an increased number of fixings on the edge zone would result in slightly worse U values 5 See section 4 2 6 3 The system can contribute to maintaining continuity of thermal insulation at junctions between elements and openings 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 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 O
20. iately and regular maintenance is undertaken as described in section 12 13 2 The render may become discoloured with time the rate depending on the initial colour the degree of exposure and atmospheric pollution as well as the design and detailing of the wall In common with traditional renders discoloration by algae and lichens may occur in wet areas The appearance may be restored by a suitable power wash or if required by over coating t 13 3 To maintain a high quality appearance it may be necessary to periodically overcoat the building using a suitable masonry coating ie one covered by a valid BBA Certificate for this purpose Care should be taken not to adversely affect the water vapour transmission or fire characteristics of the system The advice of the Certificate holder should be sought as to the suitability of a particular product Page 10 of 18 14 Site survey and preliminary work 14 1 A pre installation survey of the property must be carried out to determine suitability for treatment and the need for any necessary repairs to the building structure before application of the system A specitication is prepared for each elevation of the building indicating e the position of beads e detailing around windows doors and at eaves e damp proof course dpc level e exact position of expansion joints if required e areas where flexible sealants must be used e any alterations to external plumbing e the position of fire
21. imer e Sem a mass per unit area of approximately 165 g m a mass per unit area of approximately 230 g m p proof tear proof and algae tungji resistant glassfibre mesh 2 and a mesh size of approximately 4 0 mm by 4 0 mm prproof tear proof and algae tungji resistant glassfibre mesh 2 and a mesh size of approximately 7 0 mm by 7 0 mm pre Tesoro Grunt ready to use pigmented liqui d for use on highly absorbent masonry and concrete substrates such as brick concrete block prior to the application of adhesive and basecoat e Sem pre Maresil Grunt polysilicate primer suitable Finishing coats e Sem parti e Sem pre Tesoro Tynk acrylate binder supplied as cle sizes of 1 5 mm 2 mm 2 5 mm and 3 mm Avai for mineral substrates and used with Sempre Maresil Tynk ready to use paste applied to the primer basecoat Available in pre Maresil Tynk silicate silicone binder supplied as ready to use paste applied to the primer basecoat lable in particle sizes of 1 5 mm 2 mm 2 5 mm and 3 mm Figure 1 SempreTherm External Wall Insulation Bonded System adhesive supplementary mechanical fixing insulation board basecoat reinforcing mesh primer e decorative render 1 2 Ancillary items supplied with the system but outside the scope of this Certificate e Range of aluminium PVC U or stainless steel profiles comprising base profiles starter t
22. ith ETAG 004 2013 The system is suitable for use in the Use Category listed in Table 4 Table 4 SempreTherm EPS External Wall Insulation Bonded System impact resistance Use Category Rendering system Sempre Universal TU 200 basecoat a ed alld el pon ts finishing coats indicated hereafter Sempre Tesoro Tynk acrylate binder particle size 1 5 mm Sempre Maresil Tynk silicate silicone binder i i particle size 1 5 mm 1 Use Categories are defined in ETAG 004 2013 as e Category a zone readily accessible at ground level to the public and vulnerable to hard body impacts but not subjected to abnormally rough use e Category Il a zone liable to impacts from thrown or kicked objects but in public locations where the height of the system will limit the size of the impact or at lower levels where access to the building is primarily to those with some incentive to exercise care e Category Ill a zone not likely to be damaged by normal impacts caused by people or by thrown or kicked objects 8 Behaviour in relation to fire 4 The reaction to fire classification is class B s1 dO in accordance with BS EN 13501 1 2007 gt 8 2 The fire classification applies to the full range of thicknesses covered by this Certificate 8 3 The system is restricted for use in buildings up to 18 metres in height 8 4 For houses in Scotland and for all buildings in England and Wales and Northern Ireland
23. iversal TU 200 adhesive basecoat SempreTherm white and grey EPS Mechanical fixings Sempre TG 15 Fibreglass Mesh Sempre TG 16 Fibreglass Mesh 25 kg bag 25 kg bag Shrinkwrapped in polythene 1200 mm x 600 mm or 1000 mm x 500 mm Boxed by manufacturer 1 mx 50 m rolls 1 mx 50 m rolls Sempre Tesoro Grunt primer keycoat 10 litre tubs Sempre Maresil Grunt primer keycoat 10 litre tubs Sempre Tesoro Tynk finish coat 25 kg tubs Sempre Maresil Tynk finish coat 25 kg tubs 3 4 The boards must be protected from prolonged exposure to sunlight either by storing opened packs under cover or recovering with opaque polythene sheeting Care must be taken to avoid contact with solvents or materials containing volatile organic components The boards must not be exposed to open flame or other ignition sources 3 5 The adhesive basecoat and topcoats and all cementitious materials must be stored in dry conditions between 5 C and 30 C off the ground and protected from moisture Contaminated material must be discarded 3 6 The primer should be stored in a safe area under cover and protected from excessive heat and frost at all times Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on the SempreTherm EPS External Wall Insulation Bonded System Page 5 of 18 4 General 4 1 SempreTherm EPS External Wall Insulation Bonded System when installed
24. knesses 1 5 mm to 3 mm as determined by the particle size see section 1 using a stainless steel trowel and finished with a plastic trowel to create a textured finish The drying time is dependent on conditions but will typically be 24 hours in accordance with the Certificate holder s instructions Figure 7 Additional reinforcement and fixings at opening stress patches approx 300 mm x 200mm 16 26 Continuous surfaces must be completed without a break eg working to a wet edge Care should be taken to prevent the basecoats and finish coats from either drying too rapidly or freezing 16 27 At the tops of walls the system should be protected by an adequate overhang see Figure 8 or by an adequately sealed purpose made flashing Care should be taken in the detailing of the system around openings and projections see Figures 9 10 and 11 Page 14 of 18 Figure 8 Roof eaves details existing substrate mastic seal finish rend i i inish render insulation board primer adhesive basecoat reinforcing mesh basecoat Figure 9 Window sill and reveal detail finish render PVC angle bead with mesh window frame PVC protection bead with mesh and seal adhesive existing sill primer reinforcing mesh masonry substrate basecoat insulation board Page 15 of 18 Figure 10 Window opening detail adhesive insulation board existing substrate base
25. n the product system or any other product system 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 18 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 Certificate 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 customerservices bba star
26. ng the declared thermal conductivities values Ap of the insulations given in Table 2 Table 2 Declared thermal conductivities values Np and available thicknesses insulation Woes Thickness Thermal conductivity YP mm W m K 1 White EPS 70 0 038 50 to 150 Grey EPS 70 0 031 53 and type of fixing and the insulating value of the substrate masonry and its internal finish Calculated U values for sample construction in accordance with the Building Regulations are given in Table 3 and are based on the thermal conductivities given in Table 2 4 The U value of a completed wall will depend on the selected insulation type and thickness fixing method Page 6 of 18 Table 3 Insulation thickness required to achieve design U values 2 3 given in the national Building Regulations U value Thickness of insulation Win K mm 215 mm Brickwork 200 mm dense blockwork a 0 56 W m K 1 75 Wm K White EPS 70 Grey EPS 70 White EPS 70 Grey EPS 70 0 18 5 5 5 0 19 5 150 0 25 130 110 140 120 0 26 130 100 140 110 0 28 120 100 130 100 0 30 110 90 120 100 O 35 90 80 100 80 1 Wall construction inclusive of 13 mm plaster 0 57 W mir K brickwork protected with 17 1 mortar or dense blockwork with 6 7 mortar X 0 88 W m K 1 Declared thermal conductivity of insulation values Ap is as shown in Table 2 An adhesive layer of 5 mm thick with 0 43 W m K l covering 40 of t
27. o dry prior to the application of a system 15 Approved Installers Application of the system within the context of this Certificate must be carried out by installers approved by the Certificate holder A Certificate holder approved installer is a company e employing operatives who have been trained and approved by the Certificate holder to install the system and has operatives who upon completion of their training have been issued with an appropriate identification card by the Certificate holder e which has undertaken to comply with the Certificate holder s application procedure containing the requirement for each application team to include at least one member operative trained by the Certificate holder 3 e subject to at least one inspection per annum by the Certificate holder to ensure suitable site practices are being employed This may include unannounced site inspections 16 Procedure General 16 1 Installation of the system must be carried out in accordance with the Certificate holder s current installation instructions 16 2 Weather conditions should be monitored to ensure correct application and curing conditions Application of coating materials must not be carried out at temperatures below 5 C or above 30 C nor if exposure to frost is likely and the coating must be protected from rapid drying Installation should not take place during rainfall or if rain is anticipated In addition cementitious based renders must n
28. ot be applied if the temperature will fall below O C within 72 hours of completion 6 3 The planarity of the substrate must be checked and any protrusions exceeding 10 mm removed 6 4 The primers should always be used and diluted as necessary see section 1 6 5 All rendering should be in accordance with the relevant recommendations of BS EN 13914 1 2005 Positioning and securing insulation boards 6 6 The base profile is secured to the external wall above the dpc using the approved profile fixings at approximately 300 mm centres see Figure 3 Base rail connectors are inserted at all rail joints Extension profiles are fixed to the front lip of the base rail or stop end channel where appropriate Page 11 of 18 Figure 3 Typical section of base profile adhesive existing masonry base profile anchor base profile existing dpc 9 oP insulation board waterproof sealing coat work below base profile gt is outside of the scope of this certificate 16 7 The adhesive is prepared with the required amount of water see section 1 and mixed with a paddle mixer until the desired consistency is achieved After allowing the adhesive to rest for 5 minutes it is stirred again The adhesive is applied in a continuous line around the perimeter of the board with six additional dabs of adhesive distributed uniformly over the remaining surface at least 40 of the board should be covered see
29. rack edge profiles PVC corner bead with mesh a corner profiles with optional PVC U nosing render stop profiles stop bead with mesh movement joints V and E version expansion joints PVC clip on starter track beads window frame seal beads aluminium insulated window sills with PVC end c flashings spiral fixings fungicidal wash algae remover sealants expansion foam sealers nd drip beads aps Page 4 of 18 1 3 The insulation boards are primarily bonded to the external surfaces of the walls using at least 60 coverage of adhesive applied at a minimum 40 coverage which is achieved when the boards have been pressed against the wall Supplementary mechanical fixings are applied to support the boards in place while the adhesive is setting When all the boards have been secured to the wall basecoat is applied to their surface to a uniform thickness and the reinforcing mesh immediately embedded and the surface smoothed with a trowel A further layer of basecoat render is applied over the embedded reinforcing mesh in order to achieve the required overall thickness When the basecoat is dry primer is applied and the surface is then ready for the application of the selected finishes 2 Manufacture 2 1 Components are manufactured by the Certificate holder or bought in from suppliers to an agreed specification 2 2 As part of the assessment and ongoing surveillance of product quality the BBA has e agreed with
30. substrate provides adequate resistance to negative wind loads e an appropriate number of site specific pull off bond strength tests have been conducted on the substrate of the building to determine the minimum resistance to failure of the bond strength 7 6 The bond strength between the adhesive and the substrate should be determined on site and taken as the mean of the five results divided by a safety factor of nine and multiplied by the minimum bond area 7 7 The minimal admissible calculated bonded surface area S for the system is 40 in accordance with ETAG 004 2013 1 This bonded area should be increased if the bond strength between the adhesive and the substrate is less than the ultimate wind load 7 8 The initial adhesive bond between the insulation and the substrate will have a minimum failure resistance of gt 30 KN m For calculating the design resistance a minimum bonded area should be considered and a safety factor of nine applied Page 7 of 18 7 9 The number of supplementary fixings and the span between them should be determined by the system designer Provided the substrate wall and fixings are covered by an appropriate ETA the mechanical fixings will initially transfer the weight of the system to the substrate wall The fixing must be selected to give adequate support to the weight of the system at the minimum spacing Impact resistance 7 10 Hard body impact tests were carried out in accordance w
31. sulation e SempreTherm white expanded polystyrene EPS 70 insulation boards 1200 mm by 600 mm or 1000 mm x 500 mm in a range of thicknesses between 50 mm and 150 mm with a nominal density of 15 kg m 3 a minimum compressive strength of ZO kPa and a nominal tensile strength perpendicular to the face of 100 kPa It is manufactured to comply with BS EN 13163 2008 SempreTherm grey expanded polystyrene EPS 70 insulation boards 1200 mm by 600 mm or 1000 mm x 500 mm in a range of thicknesses between 50 mm and 150 mm with a nominal density of 15 to 17 kgm a minimum compressive strength of ZO kPa and a nominal tensile strength perpendicular to the face of 100 kPa It is manufactured to comply with BS EN 13163 2008 Supplementary fixings Mechanical fixings anchors with adequate length to suit the substrate and the insulation thickness approved and supplied by the Certificate holder as follows e Ejotherm NT UM 1 Other fixings may be used provided they can be demonstrated to have equal or higher pull out plate diameter and plate stiffness characteristics Basecoat e Sempre Universal TU 200 a cement based powder requiring the addition of clean water from 0 22 litre kg to 0 24 litre kg and mixed with a high speed mixer for 3 to 5 minutes Page 3 of 18 Reinforcement e Sempre TG 15 Fibreglass Mesh alkali resistant sli with e Sempre TG 16 Fibreglass Mesh alkalitesistant sli with Pr
32. sure that walls are adequately watertight prior to application of the system The system must only be installed where there is no sign of dampness on the inner surface of the substrate other than that caused solely by condensation 4 10 1 The system will provide a degree of protection against water ingress However care should be taken to 10 2 Designers and installers should take particular care in detailing around openings penetrations and movement joints to minimise the risk of water ingress 10 3 The guidance given in BRE Report BR 262 2002 should be followed in connection with the watertightness of solid wall constructions The designer should select a construction appropriate to the local wind driven index paying due regard to the design detailing workmanship and materials to be used 10 4 At the top of walls the system should be protected by an adequate overhang or other detail designed for use with this type of system see section 16 11 Risk of condensation the construction including openings and penetrations at junctions between the insulation system and windows 1 1 Designers must ensure that an appropriate condensation risk analysis has been carried out for all parts of fo minimise the risk of condensation The recommendations of BS 5250 2011 should be followed Surface condensation 47 11 2 Walls will adequately limit the risk of surface condensation when the thermal transmittance U value does FA A not exce
33. surface condensation See sections 11 1 11 2 and 11 4 of this Certificate Conservation of fuel and power The system can contribute to satisfying this Requirement See sections 6 2 and 6 3 of this Certificate Materials and workmanship The system is acceptable See section 13 1 and the Installation part of this Certificate CO emission rates for new buildings Fabric energy efficiency rates for new buildings applicable to England only Primary energy consumption rates for new buildings applicable to Wales only Fabric performance values for new dwellings applicable to Wales only The system can contribute to satisfying these Regulations when compensating fabric services measures are taken See sections 6 2 and 6 3 of this Certificate 4g The Building Scotland Regulations 2004 as amended ah Regulation Comment Regulation Standard Comment Standard Comment Standard Comment Standard Comment Standard Comment Standard Standard Comment Standard Comment Regulation Comment 8 1 2 2 6 2 6 1 b ow 7 a b 12 Durability workmanship and fitness of materials The system can contribute to a construction satisfying this Regulation See sections 12 1 and 13 1 and the Installation part of this Certificate Building standards applicable to construction Structure The system can sustain and transmit wind loads to the substrate wall See section 7
34. the BBA website or contacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Watford email customerservices bba star co uk Herts WWD25 9BA website www bbacerts co uk Page of 18 Regulations In the opinion of the BBA the SempreTherm EPS External Wall Insulation Bonded System if installed used and maintained in accordance with this Certificate will meet or contribute to meeting the relevant requirements of the 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 Comment Requirement Comment Requirement Comment Requirement Comment Requirement Comment Regulation Comment Regulation Regulation Regulation Regulation Comment Al BA 1 C2 b C2 c L1 a i 7 26 26A 26A 26B Loading The system can sustain and transmit wind loads to the substrate wall See section 7 4 of this Certificate External fire spread The system can satisfy this Requirement See sections 8 1 to 8 4 of this Certificate Resistance to moisture The system can provide a degree of protection against rain ingress See sections 4 4 and 10 1 of this Certificate Resistance to moisture The system can contribute to minimising the risk of interstitial and
35. 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 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 2 3 The management system of the SEMPRE Farby Sp z o o production facility J Kustronia 60 43 301 Bielsko Biata Poland has been assessed and registered as meeting the requirements of ITB AT 15 6383 2013 Certificate F O13 BG 031 by PCBC S A 3 Delivery and site handling 3 1 The insulation boards are delivered in sealed packs with the product identification and manufacturer s batch numbers 3 2 The other components are delivered in the quantities and packaging listed in Table 1 Each package carries the product identification and manufacturer s batch number 3 3 The insulation should be stored on a firm clean level base off the ground and under cover until required for use Care must be taken during handling to avoid damage Table 1 Component supply details Component Quantity and package Sempre Start TS 100 adhesive Sempre Un
36. thickness of basecoat is achieved whilst ensuring that the mesh is placed in the top one third of basecoat 16 18 The basecoat is applied progressively working in one metre sections in a vertical or horizontal direction 16 19 Overlapping at all mesh joints should not be less than 100 mm 16 20 In all cases additional pieces of reinforcing mesh 200 mm by 300 mm should be used diagonally at the corners of openings as shown in Figure 7 For areas requiring extra resistance to impact two mesh layers should be used in two stages 16 21 The overall thickness of the reinforced basecoat must be greater than 3 5 mm Once the whole wall is completed the basecoat with mesh is left to dry thoroughly before application of primer and the finish coat The drying time will depend upon the conditions but at least 24 hours should elapse before primer and finishing coats are applied Primer 16 22 The primer coat is roller applied after the basecoat has dried first making sure it is free from any irregularities trowel marks exposed mesh etc Finishing 16 23 Stop beads are positioned vertically eg at party wall positions where the adjoining house does not require treatment 16 24 The basecoat should be left to dry thoroughly before application of the finish coat The drying time will depend upon the conditions but at least 24 hours should elapse before applying the finish coats 16 25 The render finishes are applied to the required thic
37. ulations see section 6 Strength and stability the system can adequately resist wind loads and has sufficient resistance to impactdamage see section 7 Behaviour in relation to fire the system has a B s1 dO reaction to fire classification and can meet the requirements the national Building Regulations see section 8 Risk of condensation the system can contribute to limiting the risk of interstitial and surface condensation see section 1 1 Durability when installed and maintained in accordance with the Certificate holder s recommendations and the terms of this Certificate the system will remain effective for at least 30 years see section 13 The BBA has awarded this Certificate to the company named above for the system described herein This system 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 COs Say ee Date of First issue 12 September 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
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