Strikolith UK STRIKOLITH EXTERNAL WALL INSULATION
Contents
1. e el ole ele l e e e e 8 ele ole ele ele e o ele ele olo ele ole E e e e e e e ele ele ale elo olo o ele ele ele ele e e e e 3 e el e e o 8 8 e e 8 e e e e e le 8 e e e ele ole e e e le ele ole e 8 e 8 l ele ele e e e 8 e e e e ele elo ole e o e e Je ele ele e e e e e le elo ele e Movement joints 16 11 Expansion beads are fixed vertically in agreed positions These beads are positioned at approximately seven metre centres along a building the centres depending on the individual design and requirements of each job The Certificate holder should be consulted for further information regarding provision for expansion in the system Page 12 of 17 16 12 Vertical or horizontal movement joints in the substrate must be continued through the system or render when applied Additional expansion or movement joints are determined by the Certificate holder at the time of the initial survey on case by case basis The joint detail using purpose made trims is illustrated in Figure 5 Figure 5 Vertical movement joint masonry expansion joint SU SU PE Reinforc2. Component Quantity and package Insulation boards Shrinkwrapped in polythene Strikotherm Adhesives GG and GW 25 kg bag Strikotherm Basecoat GW FLEX 25 kg bucket Strikotherm Basecoat GG and GW 25 kg bag Strikotherm Basecoat GW Plus 20 kg bag Strikotherm mechanical fixings boxed by manufacturer 100 per box Strikotherm reinforcement mesh 1 mx 50 m rolls Strikotherm Silicone Silicate and BGI Primers 16 and 22 kg plastic bucket liquid Strikotherm BGI Plaster Finish 17 kg plastic bucket paste Strikotherm Silicone Silicate Plaster Finish 17 kg plastic bucket paste Strikotherm Variostar Finish 25 kg bag powder 3 2 The insulation must 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 3 3 The insulation should be protected from prolonged exposure to sunlight and contact with solvent and bitumen The boards must not be exposed to open flame or other ignition sources 3 4 The basecoat adhesive and topcoats must be stored in dry conditions within 5 C and 30 C off the ground and protected from moisture Contaminated material must be discarded 3 5 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 Strikotherm EPS External Wall Insulation
3. Bucknalls Lane fax 01923 665301 Watford email mail bba star co uk Herts WD25 9BA website www bbacerts co uk Page 1 of 17 Regulations In the opinion of the BBA Strikotherm EPS External Wall Insulation 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 Comment Al BA 1 C2 b C2 c L1 a i 26 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 meet or contribute to meeting this Requirement See sections 8 1 to 8 5 and 8 8 of this Certificate Resistance to moisture The system can provide a degree of protection against rain ingress See sections 4 5 and 10 1 of this Certificate Resistance to moisture The system can contribute to minimising the risk of interstitial and surface condensation See sections 11 1 1 2 and 11 4 of this Certificate Conservation of fuel and power The system can contribute to meetin
4. Strikotherm GW basecoat Silicate finish Category III Strikotherm GW basecoat Variostar finish Category Strikotherm GW basecoat Silicone finish Category II 1 Assessment based upon small scale test results carried out by the ETA issuing organisation 8 Behaviour in relation to fire 4 The system classification is described in Table 7 2 Table 7 Reaction to fire classification in accordance with EN 13501 1 2007 System Classification Strikotherm 100 200 GG EPS Strikotherm 100 200 GW EPS B s1 dO Strikotherm 100 200 GW Plus EPS Strikotherm 100 GW FLEX EPS C s2 dO 8 2 The classification applies to the full range of thicknesses and finishes covered by this Certificate 8 3 The insulation materials are not classified as non combustible 8 4 Application to second storey walls and above should include at least one stainless steel mechanical fixing per square metre and consideration should be given to including fire barriers in line with compartment walls and floors as recommended in BRE Report BR 135 2013 see Figure 2 System with a B s2 dO fire rating 42 8 5 The system is considered suitable for use on or at any distance from the boundary and restricted for use in 53 buildings up to 18 m in height Fi on The system is classified as low risk combustible materials and must not be used within 1 m of the boundary 59 and are restricted for use in buildings up to 18 m in height 8 7 The system is not classifi
5. 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 FA d fepaired immediately and regular maintenance is undertaken as described in Section 12 13 2 Any render containing Portland cement may be subject to lime bloom The occurrence of this may be reduced by avoiding application in adverse weather conditions The effect is transient and is less noticeable on lighter colours 13 3 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 13 4 To maintain a high quality aesthetic 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 14 Site survey and prelimina
6. System 4 General 4 1 Strikotherm EPS External Wall Insulation System when installed in accordance with this Certificate is effective in reducing the thermal transmittance U value of external masonry walls of new and existing buildings It is essential that the detailing techniques specitied 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 Page 5 of 17 4 2 The system is applied to the outside of external walls of masonry and dense or nofines concrete construction and is suitable for use on new or existing domestic or non domestic buildings up to 18 m in height Application and maintenance must be carried out strictly in accordance with this Certificate and the Certificate holder s instructions by installers trained and approved by the Certificate holder 4 4 3 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 see section 10 1 4 4 New or existing buildings should have wall surfaces in accordance with section 14 of this Certificate 4 5 New walls subject to national Building Regulations should be constructed in accordance with the relevant 53m commendations
7. must be fitted to extend beyond the finished face of the system New buildings should incorporate suitably deep sills 4 5 Where surfaces are covered with an existing rendering it is essential that the bond between the background and he render is adequate All loose areas should be hacked off and reinstated 4 4 6 Internal wet work eg screeding or plastering should be completed and allowed to dry prior to the application of a system 4 7 All modifications such as provision for fire barriers see section 8 and necessary repairs to the building structure are completed before installation commences 15 Approved Installers p 4 Application of the system within the context of this Certificate is carried out by approved installers recommended or recognised by the Certificate holder Such an installer is a company e employing operatives who have been trained and approved by the Certificate holder to install the system 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 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 6 1 Installation of the system must be carried out in accordance with the Certificate holder
8. 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 6 Other new buildings not subject to regulatory requirements should also be built in accordance with the standards identified in section 4 5 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 5 Practicability of installation The system should be installed only by specialised contractors who have successfully undergone training and registration by the Certificate Holder Note The BBA operates a UKAS Accredited Approved Installer Scheme for external wall insulation details of approved installer companies are included on the BBA s 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 using the declared thermal conductiv
9. s current installation instructions 6 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 6 3 All rendering should be in accordance with the relevant recommendations of BS EN 13914 1 2005 Positioning and securing insulation boards 6 4 The base profile is secured to the external wall above the dpc using the approved profile fixings at approximately 300 mm centres If a temporary timber batten is to be used a strip of mesh is partially adhered to the wall so that 300 mm of mesh is hanging from the starting line of the installation Base rail connectors are inserted at all rail joints Extension profiles are fixed to the front of the base rail or stop end channel where appropriate 16 5 The adhesive is prepared by mixing 6 to 7 litres of clean water with every 25kg bag and applied over the entire rear face of the insulation board using a notched trowel 16 6 The first run of insulation boards are positioned on the base profile and must be pressed firmly against the wall and butted tightly together Joints in the system greater than approximately 2 mm should be filled with slivers of insulation board or PU foam and any irregularity removed Subsequent rows of boards are positioned so that the vertical join
10. the reinforcing mesh embedding immediately and then a further layer of basecoat render is applied to a total thickness of approximately 6 mm When dry the surface is primed for the application of the selected render finishing coat followed by the decorative coat 2 Manufacture 2 1 As part of the assessment and on going surveillance of product quality the BBA has e agreed with the manufacturer the quality control procedures and product testing to be undertaken 4 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 2 2 The management system of Strikolith UK has been assessed and registered as meeting the requirements of BS EN ISO 9001 2008 Certificate GB11301 and BS EN ISO 14001 2004 Certificate GB17295 by QMS International ple 3 Delivery and site handling 3 1 Each package carries the product identification and the manufacturer s batch number The components are delivered to site in the packaging and quantities listed in Table 1 Table 1 Component supply details
11. 2002 Thermal Insulation avoiding risks BRE Report BR 443 2006 Conventions for U value calculations Page 16 of 17 Conditions of Certification 19 Conditions 19 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 19 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 19 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 19 4 The BBA has used due skill care and diligence in
12. A T l A sill end cap insulation primer and plaster masonry primer and plaster noseless meshed angle bead window He basecoat window jamb detail window sill detail 16 25 On completion of the installation external fittings eg rainwater goods are refixed through the system outside the scope of this Certificate consult the Certificate holder for Installation details Page 15 of 17 17 Tests 17 1 Tests were carried out on the system 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 pull through strength e surface spread of flame tests e thermal conductivity e durability of finish 18 Investigations 18 1 The manufacturing process was evaluated including the methods adopted for quality control and details were obtained of the quality and composition of materials used 18 2 A condensation risk analysis was undertaken 18 3 A series of U value calculations were carried out 18 4 An assessment was made of the practicability of installation and the effectiveness of detailing techniques Bibliography BS 3837 2004 Expanded polystyrene boards Specif
13. F lt Strikolith UK ao King Stag House CERTIFICATION Cheriton Bishop TECHNICAL APPROVALS FOR CONSTRUCTION Exeter EX6 OJE SN 647 24620 44 O 1647 24020 en a Tel 1647 Fax 16 email info sas europe com 13 5056 website www sas europe com Product Sheet 1 STRIKOLITH EXTERNAL WALL INSULATION SYSTEMS STRIKOTHERM EPS EXTERNAL WALL INSULATION SYSTEM This Agr ment Certificate Product Sheet relates to Strikotherm EPS External Wall Insulation System comprising mechanically tixed expanded polystyrene EPS or enhanced expanded polystyrene EEPS insulation boards with a reinforced basecoat and render finishes and suitable for use on 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 contribute to meeting the requirements of the Building Regulations see section 6 Strength and stability the system can adequately resist wind lo
14. ISO 6946 2007 3 Based upon incremental insulation thickness of 10 mm Page 6 of 17 6 3 The system can contribute to maintaining continuity of thermal insulation at junctions between elements and openings For Accredited Construction Details the corresponding psi values 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 0 7 Strength and stability 7 1 When installed on suitable walls the system can adequately transfer to the wall the self weight and negative suction and pressure wind loads normally experienced in the United Kingdom 7 2 Positive wind load pressure is transferred to the substrate wall directly via bearing and compression of the render and insulation 7 3 Negative wind pressure suction is resisted by the bond between each component The insulation boards are retained by the external wall insulation system anchors consideration should be given to locations with high wind oad pressure coefficients a
15. ads and has sufficient resistance to impactdamage depending on the finish chosen see section 7 Behaviour in relation to fire the system has a B s1 dO or C s2 dO surface spread of flame classification depending on the version chosen and can meet this requirement in accordance with 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 Durability with appropriate care 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 CGPI COOK oe eee Date of First issue 22 October 2013 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
16. age 13 of 17 16 17 Prior to the render coat a bead of silicone rubber mastic is gun applied at window and door frames overhanging eaves gas and electric meter boxes wall vents or where the render abuts any other building material or surface 16 18 Corner beads are fixed to all building corners and to door and window heads and jambs see Figure 7 Figure 7 External corner detail Ne Q oe SSS ES Se WSs 16 19 Stop beads are positioned vertically eg at party wall positions where the adjoining property does not require treatment Rendering and finishing 16 20 The drying period of any render will depend on the applied thickness and weather conditions however the basecoat must be left to harden between 24 hours and 48 hours depending on the prevailing temperature and weather conditions before application of the decorative finish and any contaminants such as
17. al Handbook Non Domestic Page 2 of 17 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 5 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 5 and 8 8 of this Certificate Regulation 39 a i Conservation measures 40 Target carbon dioxide emission rate Comment The system will contribute to a building satisfying its target emission rate 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
18. 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 VWWD25 9BA website www bbacerts co uk Page 17 of 17
19. e given in Table 4 However these values are dependent on the substrate and the fixing must be selected to suit the loads and substrate concerned Table 4 Fixings typical characteristic pullout strengths Fixing Type ETA number Substrate Drill diameter Embedment Depth Typical Pull out strength mm mm kN Ejot STU 02 0018 Concrete brickwork 8 mm 25 mm 1 2 1 2 Ejot STR U 04 0023 Concrete brickwork 8 mm 25 mm 1 5 1 5 Ejot NT U 05 0009 Concrete brickwork 8 mm 25 mm 1 2 1 5 Ejot NTK U 07 0026 Concrete brickwork 8 mm 4O mm 0 9 0 9 7 7 The pullthrough resistance determined by BBA from tests on anchors are given in Table 5 Table 5 Typical calculation to establish the pull through resistances Factor unit Insulation EPS Fixings plate diameter mm 60 Fixings types See Table 4 nsulation thickness mm gt 60 Characteristic pullthrough resistance per fixing N at joints 388 Factor of safety 3 25 Design pullthrough resistance per fixing N 155 1 Calculation based upon insulation slab 1000 mm by 500 mm total area 0 5 m attached by five fixings 2 Characteristic pull through resistance of insulation over the head of the fixing in accordance with BS EN 1990 2002 Annex D7 2 3 The global safety factor of 2 5 is applied and based on the assumption that all insulation boards are quality controlled and tested to establish tensile strength perpendicular to the face of the slab and fail
20. ecipitation The system will contribute to a a satisfying this Standard with reference to clauses 3 10 102 and 3 10 2012 See sections 4 5 and 10 1 of this Certificate Condensation The system can contribute to satisfying this Standard with reference to clauses 3 15 12 3 15 4023 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 uring these Standards with reference to clauses or parts of 6 1 LA ON SMF Lol 1 C2 OZ ANNA 2 3I 2AM 2352 26ll 2274 5 a 8123 6 2 92 6 2 10 6 2 1 1 6 2 1212 and 6 2 13012 See sections 6 2 and 6 3 of this Certificate Statement of sustainability The system can contribute to meeting 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 sustainability as defined in this Standard with cei to clauses 7 1 4012 Aspect 1012 and 20 7 1 6 M2 Aspect 102 and 21 and 7 1 72 Aspect 10121 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 1012 and Schedule 6 23 1 Technical Handbook Domestic 2 Technic
21. ed as non combustible therefore calculations for unprotected areas apply with some minor exceptions System with a C s1 dO fire rating 8 8 The system is considered suitable for use on or more than 1 m of the boundary depending on the 53 calculated unprotected area and is restricted for use in buildings up to 18 m in height Page 8 of 17 Figure 2 Fire barrier EPS insulation floor level A lt q a A 7 lt mineral wool Lamella I ral A lt 4 4 4 lt 7 T A sal wv lt I 4a A ey A e masonry ERS e fixing 9 Proximity of flues 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 FA d ensure that walls are adequately weathertight prior to its application The insulation system must only be installed where there are no signs of dampness on the inner surface of the substrate other than those caused solely by condensation 4 10 1 The system will provide a degree of protection against rain ingress However care should be
22. ensation when the thermal transmittance U value does 11 4 Walls incorporating the system will adequately limit the risk of interstitial condensation when they are 53 designed and constructed in accordance with BS 5250 2011 Section 4 Annexes D and G 11 5 The render has an equivalent air layer thickness S of approximately 0 03 m This corresponds to a water vapour resistance factor p of approximately 20 for a render thickness of 6 mm 11 6 The water vapour resistance p factor for the insulation boards as taken from BS EN ISO 10456 2007 Table 3 and 4 is e expanded polystyrene 60 e enhanced polystyrene 60 e render 20 12 Maintenance and repair R 12 1 Regular checks should be made on the installed system including e visual inspection of the render for signs of damage Cracks in the render exceeding 0 2 mm must be repaired e examination of the sealant around openings and service entry points e visual inspection of architectural details designed to shed water to confirm that they are performing properly e visual inspection to ensure that water is not leaking from external downpipes or gutters such leakage could penetrate the rendering 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
23. fness characteristics Basecoats e Strikotherm Adhesive and Basecoat Mortar GW FLEX a ready to use paste base or resin binder non cementitious with a nominal application thickness of 4 mm Strikotherm Adhesive and Basecoat Mortar GG a cementbased powder plaster requiring the addition of about 26 of its weight in water with a nominal application thickness of 4 mm Strikotherm Adhesive and Basecoat Mortar GW a cement based powder plaster requiring the addition of about 26 of its weight in water with a nominal application thickness of 4 mm e Strikotherm Adhesive and Basecoat Mortar GW PLUS a cementbased powder plaster requiring the addition of about 26 of its weight in water with a nominal application thickness of 4 to 7 mm Reinforcement Strikotherm Reinforcing Mesh a 1 metre wide woven glass fibre reinforcing mesh embedded in the basecoat with alkali and slideresistant polymer coating with a nominal weight of about 165 g m mesh size 4 mm by 4 mm and thickness less than 1mm see Figure 6 Primers Strikotherm BGI Silicone or Silicate Primers key coat resin based binder through coloured vapour permeable liquid primers used directly or diluted with the addition of clean water and applied to the finished basecoats by brush roller or spray Finishes Strikotherm BGI Plaster a finishing coat of ready to use paste based on vinyl acrylic binder with par
24. g 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 rate for new buildings The system can contribute to meeting this Regulation See section 6 2 and 6 3 of this Certificate 5 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 7 1la b t The Building Scotland Regulations 2004 as amended Durability workmanship and fitness of materials The system can contribute to a construction meeting this Regulation See sections 12 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 4 of this Certificate Spread to neighbouring buildings The system can meet this Standard with reference to clauses 2 6 4021 2 6 50 and 2 6 6121 See sections 8 1 to 8 4 and 8 6 to 8 8 of this Certificate Spread on external walls The system can meet this Standard and is acceptable for use more than one metre from a boundary with reference to clauses 2 7 102 2 7 2121 and Annex 2A See sections 8 1 to 8 4 and 8 6 to 8 8 of this Certificate Pr
25. grease and chalking removed In the case of resin based finishing coat the dried base coat requires a pretreatment with a primer according to the manufacturer s guidelines 6 21 Strikotherm silicone acrylic textured finishes should be mixed gently with a mixer before application over the dried primed basecoat Finishes are spread out evenly over the surface using a stainless steel trowel from 1 5 mm to 3 mm thicknesses 6 22 Strikotherm finishing coats should be allowed to dry thoroughly before paints are applied to any features Continuous surfaces must be completed without a break so the coating must always be applied to a wet edge 6 23 At the tops of walls the system should be protected by an adequate overhang or by an adequately sealed purpose made flashing or coping see Figure 8 Page 14 of 17 Figure 8 Roof eaves details seam J See a render finish RE mechanical fixings e EPS insulation lt mesh 16 24 Care should be taken in the detailing of the system around openings and projections see Figure 9 Figure 9 Window details im T sill seal tape a silicone e masonry Qe a i adhesive ae fixing e AE q adhesive 0 seal ea window protection mesh bead o mesh C
26. ication for boards manufactured from expandable beads BS 5250 2011 Code of practice for control of condensation in buildings BS 8000 3 2001 Workmanship on building sites Codes of practice for masonry BS EN 1607 1997 Thermal insulating products for building applications Determination of tensile strength perpendicular to faces BS EN 1990 2002 Eurocode Basis of structural design BS EN 1991 1 4 2005 Eurocode 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 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 BS EN ISO 9001 2008 Quality management system Requirements BS EN ISO 14001 2004 Environmental management system Requirements with guidance for use BS EN ISO 10456 2007 Building materials and products Hygrothermal properties Tabulated design values and procedures for determining declared and design thermal values BRE Information Paper IP 1 06 Assessing the effects of thermal bridging at junctions and around opening BRE Report BR 135 2013 Fire Performance of External Thermal Insulation for Walls of Multistorey Buildings BRE Report BR 262
27. ing 6 13 The basecoat render is prepared by mixing the contents of each 25 kg or 20 kg bag with approximately four to seven litres of cold clean water using a suitable drill with a whisk attachment for at least five minutes after the addition of the last bag of render to allow an even dispersion of the resins This is then allowed to stand for at least three minutes then remixed 6 14 The basecoat render is spray or trowelapplied to the surface of the dry insulation boards initially to an approximate thickness of 4 mm It is applied progressively working in 1 m sections in vertical or horizontal directions 6 15 The reinforcement glassfibre mesh is immediately embedded into the basecoat with 100 mm overlap at joints then a further coat of basecoat is applied The overall basecoat thickness is approximately 5 mm to 7 mm Additional pieces of mesh 300 mm by 300 mm are used diagonally at the corners of openings as shown in Figure 6 Corner details are reinforced using PVC mesh angle beads 16 16 The mesh should be free of wrinkles and fully embedded in the base coat with no visible mesh pattern on the finish surfaces Figure 6 Additional reinforcement at openings E mesh 300 x 300 mm embeded diagonally at corners apply additional mesh 300 x 300 mm inside all corners P
28. ity Xj value of the insulations given in Table 2 Table 2 Thermal conductivity values Insulation Board thickness range Lambda value mm W m K EPS7O 0 038 EPS7OE AO to 250 0 037 EEPS OE 0 030 53m insulating value of the substrate masonry and its internal finish Calculated U values in accordance with BS EN ISO 6946 for sample constructions in accordance to the Building Regulations are given in Table 3 using the declared thermal conductivities given in Table 2 4 The U value of a completed wall will depend on the selected insulation thickness and fixing method the Table 3 Insulation thickness required to achieve design U values given in the national Building Regulations U value Insulation thickness requirement mm 2 K Wm 2K 215 mm Brickwork 0 56 W mr K7 200 mm Dense blockwork 1 75 W rmr K 1 EPS7O EPS7OE EEPS7OE EPS EPS7OE EEPS OE 0 19 200 200 160 210 200 170 0 25 150 140 120 50 50 120 0 26 140 140 110 50 40 120 0 28 130 120 100 40 30 110 0 30 120 110 90 30 20 100 0 35 100 90 80 10 00 80 1 Wall construction inclusive of 13 mm plaster 0 57 W m7 K 6 mm render A 1 W m K7 brickwork 17 1 mortar or blockwork 6 3 mortar 0 88 W mr K and insulation see 2 2 Calculation based on a mechanically fixed system that included ten stainless steel fixings X 0 002 W K per m Use of other types of fixings should be calculated in accordance with BS EN
29. nd 250 mm with a nominal density of 14 to 17 Kg m a minimum compressive strength of ZO kPa and a minimum nominal tensile strength perpendicular to the face of 100 kPa Boards are manufactured to comply with the requirements of factory manufactured expanded polystyrene material to BS EN 13163 2001 and are fire retardant in accordance with BS EN ISO 11925 2 2010 enhanced expanded polystyrene EEPS7OE insulation boards 500 mm by 1000 mm in a range of thicknesses between 40 mm and 250 mm with a nominal density of 15 to 17 Kg m a minimum compressive strength of 70 kPa and a minimum nominal tensile strength perpendicular to the face of 100 kPa Boards are manufactured to comply with the requirements of factory manufactured expanded polystyrene material to BS EN 13163 2001 and are fire retardant in accordance with BS EN ISO 11925 2 2010 Fixings e mechanical fixings anchors with adequate length to suit the substrate and insulation thickness approved and supplied by the Certificate holder and selected from Ejot STU polyethylene PE HD with steel or electro galvanised nails Ejot STR U polyethylene PE HD with steel or electro galvanised nails Page 3 of 17 Ejot NTU polyethylene PE HD with steel or electro galvanised nails Ejot NTK U polyethylene PE HD with polyamide PA GF 50 nails 1 Other fixings may be used provided they can be demonstrated to have equal or higher pull out and plate stif
30. preparing this Certificate but no warranty is provided 19 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 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 19 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
31. ry work 14 1 A pre installation survey of the property must be carried out to determine suitability for treatment and any repairs necessary to the building structure undertaken before application of a system A specification is prepared for each elevation of the building indicating e the position of beads and starter track 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 where required e where required the position of fire barriers Page 10 of 17 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 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 pull out resistance see section 7 4 3 Surfaces should be sound clean and free from loose material The flatness of surfaces must be checked this may be achieved using a straight edge spanning the storey height Any excessive irregularities ie greater than 10 mm in 1 m must be made good prior to installation to ensure that the insulation boards are installed with a smooth in plane inished surface 4 4 On existing buildings purpose made sills
32. s additional fixings may 4G The wind loads on the walls should be calculated in accordance with BS EN 1991 1 4 2005 Special 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 structura experienced individual to confirm that e the substrate wall has adequate s system ignoring any contribution from the insulation system e the proposed system and loads based on the resul e an appropriate number o minimum resistance to fai with the guidance given i PA f performance for individual installations should be carried out by a suitably qualified and 4 rength to resist additional loads that may be applied as a result of installing the associated fixing layout see Figure 4 provides adequate resistance to negative wind s of site investigation and test results given in Table 5 site specific pull out tests are conducted on the substrate of the building to determine the ure of the fixings The characteristic pull out resistance should be determined in accordance n ETAG O14 2011 Annex D 7 6 The mechanical fixings will adequately support and transfer the weight of the render insulation system to the substrate wall at the minimum spacing given in this certificate Typical characteristic pullout strengths for the fixings taken from the European Technical Approval ETA ar
33. site handling 3 1 and 3 3 of this Certificate Additional Information NHBC Standards 2013 NHBC accepts the use of the Strikotherm EPS External Wall Insulation System provided it is installed used and maintained in accordance with this Certificate in relation to NHBC Standards Part 6 Superstructure excluding roofs Chapter 6 9 Curtain Walling and Cladding Technical Specification 1 Description 1 1 The Strikotherm EPS External Wall Insulation System consists of insulation boards mechanically fixed directly to the substrate wall through the insulation with supplementary adhesive and embedded reinforced render basecoat and render finishes see Figure 1 They are made up of the following components Adhesives Strikotherm EPS Adhesive and Basecoat Mortar GG and GW a cementbased powder plaster requiring the addition of about 26 of its weight in water with a nominal application thickness of 4 mm Insulation e expanded polystyrene EPS7O insulation boards 500 mm by 1000 mm in a range of thicknesses between 40 mm and 250 mm with a nominal density of 14 to 17 Kg m a minimum compressive strength of ZO kPa and a minimum nominal tensile strength perpendicular to the face of 100 kPa Boards are manufactured to comply with the requirements of factory manufactured expanded polystyrene material to BS EN 13163 2001 expanded polystyrene EPS7OE insulation boards 500 mm by 1000 mm in a range of thicknesses between 40 mm a
34. taken to 0 2 Designers and installers should take particular care in detailing around openings penetrations and movement joints to minimise the risk of rain ingress 0 3 The guidance given in BRE Report BR 262 2002 should be followed in connection with the weathertightness 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 0 4 At the tops of walls the system should be protected by an adequate overhang or other detail designed for use with these types of system see section 16 24 11 Risk of Condensation 42 11 1 Designers must ensure that an appropriate condensation risk analysis has been carried out for all parts of the construction including openings and penetrations at junctions between the insulation system to minimise the tisk of condensation The recommendations of BS 5250 2011 should be followed Surface condensation 47 11 2 Walls will limit the risk of surface condensation adequately when the thermal transmittance U value does not exceed 0 7 W m K at any point and the junctions with other elements and openings comply with section 6 3 Page 9 of 17 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 Interstitial condensation a 1 3 Walls will adequately limit the risk of surface cond
35. ticle sizes 1 5 2 0 or 3 0 mm and a thickness equal to particle size Strikotherm Silicate Plaster a finishing coat of ready to use paste based on silicate binder with particle sizes 1 5 2 0 or 3 0 mm and a thickness equal to particle size Strikotherm Silicone Plaster a finishing coat of ready to use paste based on styrol acrytsilicone resin binder with particle sizes 1 5 2 0 or 3 0 mm and a thickness equal to particle size Strikotherm Variostar a finishing coat of cement based powder plaster requiring the addition of about 30 of its weight in water with particle sizes 1 0 2 0 or 3 0 mm and a thickness equal to particle size Figure 1 Strikotherm EPS External Wall Insulation system components Aare adhesive hats Tle ee a insulation ya basecoat mesh basecoat e finish 1 2 Ancillary items supplied with the system but outside the scope of this Certificate e profiles a range of standard profiles such as starter track angle and mesh angle beads and stop ends e expansion joint beads e bitumen emulsion e seal tape e profile fixings driven pins with plastic expansion sleeves e sealant silicone sealant Page 4 of 17 1 3 The insulation boards are mechanically fixed to the external surface of the substrate through the insulation boards with supplementary adhesive Basecoat render is trowelapplied to the board face to an approximate thickness of 4 mm
36. ts are staggered and overlap at the building comers and so that the board joints do not occur within 150 mm of the corners of openings see Figure 3 Care must be taken to ensure that all insulation boards are butted tightly together and alignment should be checked as work proceeds Page 11 of 17 Figure 3 Positioning of the boards 1000 mm 6 7 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 purpose made window sills are fitted They are designed to prevent water ingress and incorporate drips to shed water clear of the system 6 8 Installation continues until the whole wall is completely covered including where appropriate the building softits and eaves 6 9 Allowance should be made where either existing render is on the wall or dubbing out render has been used to align the boards as the effective embedment will be reduced 6 10 The mechanical fixings are installed through the insulation by holes drilled into the substrate to the required depth at the corners of each board and at positions which will allow for a nominal seven to eight fixings per square metre see Figure 4 The mechanical fixings are inserted and tapped or screwed firmly into place securing the insulation to the substrate Figure 4 Typical fixing pattern
37. ure mode Page 7 of 17 Impact resistance 7 8 Hard body impact tests were carried out in accordance with ETAG 004 2011 The system is suitable for use in Use Categories to III depending on the finish See Table 6 1 Categories are as follows e Category a zone readily accessible at ground level to the public and vulnerable to hard body impacts but not subject 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 systems 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 Table 6 Strikolith External Wall Insulation System resistance to impacts Rendering systems Impact Category Strikotherm GW FLEX basecoat BGI finish Cat Strikotherm GW FLEX basecoat Silicone finish ASIS Strikotherm GG basecoat BGI finish Strikotherm GG basecoat Silicate finish Cat i Strikotherm GG basecoat Silicone finish eee Strikotherm GG basecoat Variostar finish Strikotherm GW Plus basecoat BGI Plaster finish Strikotherm GW Plus basecoat Silicate finish C Strikotherm GW Plus basecoat Variostar finish FLJ Strikotherm GW Plus basecoat Silicone finish Strikotherm GW basecoat BGI Plaster finish Category
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