Insuletics Ltd INSULETICS EXTERNAL WALL INSULATION
Contents
1. corner bead i corner bead low modulus low modulus silicone sealant new sill silicone sealant new sill detail at reveal flush detail at reveal recessed low modulus silicone sealant detail of sill 16 9 Installation continues until the whole wall is completely covered including where appropriate the building soffits Only details specified and approved by the certificate holder may be used Movement joints and render beads 16 10 Movement joints in the substrate must be continued through the system This may necessitate the use of back to back full system stop beads with a mastic seal and backer strip depending on the width of the joint and the degree of movement anticipated Additional expansion joints in the insulation system are determined by the Certificate holder at the time of initial survey Each project is considered on its own merits and the Certificate holder will take into account construction format building design and fenestration when determining the regularity and positioning of both vertical and horizontal expansion joints in the system see Figure 5 Page 12 of 16 Figure 5 Expansion joint movement insulation with Firtree fixings joint bead fixed to Reinforci2. e the proposed system and associated fixing layout provides adequate resistance to negative wind loads based on the results of the site investigation and test results e an appropriate number of site specific pull out tests conducted on the substrate of the building to determine the minimum resistance to failure of the fixings The characteristic pull out resistance should be determined in accordance with the guidance given in ETAG 014 2002 Annex D 7 6 The number and centres of fixings should be determined by the system designer Provided the substrate wall is suitable and an appropriate fixing is selected the mechanical fixings will adequately support and transfer the weight of the render insulation system to the substrate wall 7 7 Typical characteristic pull out strengths for the fixings taken from the corresponding European Technical Approval ETA are 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 pull out strengths Fixing type ETA Number Substrate Drill hole Minimum effective Typical pull out diameter mm anchorage depth mm strength kN Ejotherm NT U 05 0009 Concrete C12 15 Clay bricks 8 25 1 2 1 5 Ejotherm STR U 04 0023 Concrete C12 15 Clay bricks 8 25 1 5 1 5 1 Values are determined in accordance with ETAG 014 2002 and are dependent on the substrate 7 8 Th
3. Risk of condensation the system can contribute to limiting t see section 1 Durability when installed and maintained in accordance w he thermal performance of external walls or contribute to meet the requirements of the Building Regulations see section 6 d loads and impact damage see section 7 action to fire classification in accordance with he risk of interstitial and surface condensation ith the Certificate holder s recommendations and the terms of this Certificate the system should remain effective for at least 30years see section 1 3 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 Ollie Date of First issue 12 March 2014 John Albon Head of Approvals Energy and Ventilation Aake _ aaa Claire Curtis Thomas 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 Buckn
4. 6 14 The primer is applied to the basecoat in accordance with the Certificate holder s instructions and allowed to of the Insul Sil finishing coat 6 15 The finishing coat should be applied in accordance with the Certificate holder s instructions 6 16 Care should be should be taken in the detailing of the system around features such as openings projections and at eaves see Figure 7 to ensure adequate protection against water ingress and to limit the risk of water penetrating the system Page 13 of 16 Figure 7 Eaves details Zo attic insulation render finish existing substrate insulation 16 17 On completion external fittings are refixed to the substrate using suitable fixing pads previously installed in the system 17 Tests An examination was made of data relating to e resistance to freeze thaw e heat spray cycling e impact resistance e component characterisation e water vapour permeability e fire performance e durability of finish coatings 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 An assessment of the risk of interstitial condensation was undertaken 18 3 The practicability of installation and the effectiveness of detailing techniques were examined Page 14 of 16 Bibliography BS 5250 2011 Code of practice for co
5. 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 8 Annex D and BRE Report BR 262 2002 Interstitial condensation 11 4 Walls incorporating the system will adequately limit the risk of interstitial condensation when they are 7 e designed and constructed in accordance with this Certificate 11 5 The render used with the system has an equivalent air layer of thickness S of 0 33 m This corresponds to a water vapour resistance factor u of 39 for a render system of thickness of 8 5 mm 11 6 The water vapour resistance factor p for the phenolic insulation boards is 50 as taken from BS EN ISO 10456 2007 Table 4 12 Maintenance and repair R 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 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 wh
6. U polyethylene PE HD with stainless steel or electro galvanized screws The Ejot SBL 140 a proprietary 140 mm diameter polyamide extension washer can be used in conjunction with the above anchors to enhance the pullthrough capacity 1 Other fixings may be used provided they can be demonstrated to have equal or higher pull out and plate stiffness characteristics Basecoat Insul Poly14 Basecoat a cementbased polymer modified basecoat It is supplied as a powder to which only potable water is added in the correct proportion and applied to an overall thickness of 6 mm or greater Reinforcement reinforcing mesh an alkali resistant glassfibre mesh in 50 m by 1 m rolls with mesh size of 3 5 mm by 3 5 mm organic content of 20 PCS value of 8 17 M kg and nominal weight of 160 g m Primer Insuletics Insul Primer available in a range of various colours to suit colour of finish selected Finish Insul Sil Render a decorative topcoat in 15 and 30 grades available in a range of colours Page 3 of 16 Figure 1 Insuletics External Wall Insulation System insulation glassfibre mesh within existing solid wall 9 two layers of basecoat mechanical fixing through the insulation finish coat Non through pinned installation method insulation glassfibre mesh within existing solid wall 9 two layers of basecoat mechanical fixing through the mesh finish coat Through pinned i
7. this Certificate 8 6 For buildings installed with system using insulation thickness up to 130 mm and one stainless steel mechanical fixing with 80 mm washer through the reinforcement mesh there is no restriction on the height The system described has been tested and met the performance criteria set in BRE Report BR 135 2003 Annex A For the other insulation thicknesses refer to sections 8 4 to 8 6 of this Certificate 59 dependent on the fire resistance characteristics of the wall except for the system detailed in section 8 6 of this Certificate 8 8 Application to second storey walls and above it is recommended that the designer includes at least one stainless steel fixing per square metre as advised in BRE Report BR 135 2013 Foe The system is not classified as non combustible therefore calculations for unprotected areas may apply 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 ensure that substrate walls are adequately weathertight prior to its application The insulation system shall only be installed where there are no sig
8. EN ISO 10456 2007 Building materials and products Hygrothermal properties Tabulated design values and procedures for determining declared and design thermal values BRE Report BR 135 2013 Fire Performance of External Thermal Insulation for Walls of Multistorey Buildings BRE Report BR 262 2002 Thermal insulation avoiding risks BRE Report BR 443 2006 Conventions for U value calculations ETAG 004 2011 External Thermal Insulation Composite Systems with Rendering ETAG 014 2002 Plastic Anchors for ETICS Page 15 of 16 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 manufac
9. Insuletics Ltd Genesis Centre North Staffs Business Park Innovation Way Stoke on Trent Staffordshire ST6 ABF Tel 01782 366090 Fax 01782 366091 email enquiries insuletics com website www insuletics co uk A_N APPROVAL INSPECTION TESTING BA CERTIFICATION TECHNICAL APPROVALS FOR CONSTRUCTION Agr ment Certificate 12 4918 Product Sheet 7 INSULETICS EXTERNAL WALL INSULATION SYSTEMS NSUL SIL P EXTERNAL WALL INSULATIO N SYSTEM ent Certificate Product Sheet relates Sil P External Wall Insulation System mechanically fixed phenolic boards with a mesh reinforced basecoat and render finish and suitable for use on new or existing domestic and non domestic buildings 1 Hereinaft CERTIFICATION INCLUDES This Agr m to the Insul comprising er referred to as Certificate factors relating to compliance with Building Regulations where applicable factors relating to additional non regulatory information where applicable independently verified technical specification assessment criteria and technical investigations design considerations installation guidance regular surveillance of production formal three yearly review KEY FACTORS ASSESSED Thermal performance the system can be used to improve t Strength and stability the system can adequately resist win Behaviour in relation to fire the system has an B s1 dO re BS EN 13501 1 2007 see section 8
10. alls Lane Watford Herts WD25 9BA Page 1 of tel 01923 665300 fax 01923 665301 email mail bba star co uk website www bbacerts co uk 16 Regulations In the opinion of the BBA the Insul Sil P External Wall Insulation System if installed used and maintained in accordance with this Certificate can satisfy or contribute to satisfying 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 3 The Building Regulations 2010 England and Wales as amended 5 Requirement Al Loading Comment The system can sustain and transmit wind loads to the substrate wall See section 7 4 of this Certificate Requirement B4 1 External fire spread Comment The system can satisfy or contribute to satisfying this Requirement See sections 8 1 to 8 3 8 5 and 8 6 of this Certificate Requirement C2 b Resistance to moisture Comment The system provides a degree of protection against rain ingress See sections 4 4 and 10 1 of this Certificate Requirement C2 c Resistance to moisture Comment The system can contribute to minimising the risk of interstitial and surface condensation See sections 11 1 11 2 and 11 4 of this Certificate Requirement L1 a i Conservation of fuel and power Comment The system can contribute to satisfying this Requirement See sections 6 2 and 6 3 of this Certific
11. ase off the ground and must be protected from prolonged exposure to sunlight either by storing opened packs under cover in dry conditions or re covering with opaque polythene sheeting 3 4 Care must be taken when handling the insulation boards to avoid both damage and contact with solvents or bitumen products The boards must not be exposed to open flame or other ignition sources Boards that become damaged soiled or wet should be discarded 3 5 The powder components should be stored in dry conditions off the ground and protected from frost at all times Bags of unopened render will have a sheltlife of 12 months when stored correctly 3 6 Primers and synthetic paste render finishes should be stored in dry conditions off the ground and be protected from frost at all times Damaged wet or contaminated products should not be used and must be discarded Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on the Insul Sil P External Wall Insulation System 4 General 4 1 The InsubSil P External Wall Insulation System when installed in accordance with this Certificate is effective in reducing the thermal transmittance U value of the external masonry walls of new and existing buildings 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 th
12. ate Regulation 7 Materials and workmanship Comment The system is acceptable See section 13 1 and the Installation part of this Certificate Regulation 26 CO emission rates for new buildings Comment The system will enable or contribute to enabling a wall to satisfy the U value requirement See sections 6 2 and 6 3 of this Certificate 5 k The Building Scotland Regulations 2004 as amended Regulation 8 1 2 Durability workmanship and fitness of materials Comment The system can contribute to a construction satisfying this Regulation See sections 12 1 13 1 and the Installation part of this Certificate Regulation 9 Building standards applicable to construction Standard tel Structure Comment The system can sustain and transmit wind loads to the substrate wall See section 7 4 of this Certificate Standard 2 6 Spread to neighbouring buildings Comment The system is regarded as low risk and therefore can satisfy this Standard with reference to clauses 2 6 All 2 6 5 and 2 6 61 See sections 8 1 to 8 7 of this Certificate Standard 2 7 Spread on external walls Comment The system can satisfy the requirements of this Standard with reference to clauses 2 7 1002 and 2 7 21 See sections 8 1 to 8 7 of this Certificate Standard 3 10 Precipitation Comment The system will contribute to a construction satisfying this Standard with reference to clauses 3 10 1012 and 3 10 2012 See section
13. d 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 positive pressure wind loads normally experienced in the United Kingdom 7 2 Positive wind load is transferred to the substrate wall directly via bearing and 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 fixing anchors and secured through the reinforcing mesh to the wall with the appropriate fixings AG The wind loads on the wall should be calculated in accordance with BS EN 1991 1 4 2005 and UK National Annex Special consideration should be given to locations with high wind load pressure coefficients as additional fixings may be necessary In accordance with BS EN 1990 2002 and its UK National Annex it is recommended that a load factor of 1 5 is used to determine the ultimate wind load to be resisted by the system t 7 5 Assessment of structural performance for individual buildings must be carried out by a suitably qualified and experienced person 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 contribution that may occur from the insulation system
14. e Categories Il and Ill 1 The Use Categories are defined in ETAG 004 2011 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 fo 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 4S The overall classification for the complete system built in accordance with BS EN 13501 1 2007 zA is Bs1 dO 8 2 The classification applies to the full range of thicknesses and finishes covered by the Certificate 8 3 For houses in Scotland and for all buildings in England and Wales and Northern Ireland the system is suitable for use on or at any distance from the boundary than one metre from the boundary except for the system detailed in section 8 6 of this Certificate which is Fa For flats and maisonettes and non domestic buildings in Scotland the system is suitable only for use more suitable for use on or at any distance from the boundary 8 5 The system is restricted for use in buildings up to 18 metres in height except for the system detailed in 53m section 8 6 of
15. e resistance forces data are given in Table 5 and are the results of calculations determined by BBA based upon e characteristic resistances from static foam block test on anchors through the mesh with 60 mm diameter plates e characteristic pullthrough resistances from tests on anchors through the insulation with 60 mm diameter plates and 140 mm diameter extension washer Table 5 Static foam block and pull through resistances Factor unit Mesh Insulation value Insulation value nsulation thickness mm 60 60 80 60 80 Plate diameter of anchor mm 60 60 60 6013 60 3 Fixings types See Table 4 See Table 4 Characteristic pullthrough resistance per anchor N 1180 257 548 335 712 Factor of safety 25 2 5 2 5 2 5 2 5 Design pullthrough anchor resistance N 472 103 219 134 285 1 Calculation based on static foam block test on anchors through the mesh 2 Calculation based on pull through of anchors directly through insulation 3 The fixing is used with a 140 mm diameter anchor extension washer SBL 140 Plus 4 Characteristic value in accordance with BS EN 1990 2002 Annex D7 2 5 The safety factor of 2 5 is applied and based on the assumption that all insulation boards are quality controlled tested to establish tensile strength perpendicular to the face of the board Page 7 of 16 Impact loading 7 8 Hard body impact tests were carried out in accordance with ETAG 004 2011 The system is suitable for use in Us
16. ermal benefit obtained from the system Only details specified by the Certificate holder should be used 4 2 The system will improve the weather resistance of a wall and provide a decorative finish However it may be installed only where there are no signs of dampness on the inner surface of the wall other than those caused solely by condensation E 4 3 The system is applied to the outside of external walls of masonry and dense or nofines concrete construction and is suitable tor use on new or existing domestic or non domestic buildings Prior to installation of the systems the wall surfaces should comply with section 14 of this Certificate Page 5 of 16 3 relevant recommendations of e BS EN 1996 2 2006 and its UK National Annex 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 o BS S0003 20017 4 5 Other new buildings not subject to regulatory requirements should also be built in accordance with the Standards identified in section 4 4 4A New buildings subject to national Building Regulations should be constructed in accordance with the 4 6 The effect of the installation of the system on the acoustic performance of a construction is outside the scope of this Certificate 4 7 The fixing of rainwater goods satellite dishes clothes lines hanging baskets and similar items is outside the scope of this Cer
17. esting to be undertaken e assessed and agreed the quality control operated over batches of incoming materials e monitored the production process and verified that it is in accordance with the documented process e evaluated the process for management of nonconformities e checked that equipment has been properly tested and calibrated e undertaken to carry out the above measures on a regular basis through a surveillance process to verify that the specifications and quality control operated by the manufacturer are being maintained 3 Delivery and site handling 3 1 The insulation is delivered to site shrink wrapped in polythene packs bearing the manufacturer s and product identification marks and batch numbers n 3 2 Components are delivered in the quantities and packages listed in Table 1 Each package carries the manufacturer s and product identification and batch number The basecoat and render also include the BBA logo incorporating the number of this Certificate Table 1 Component supply details Component Quantity and packaging nsuletics InsukSil Render 15 and 30 grades 25 kg tub nsuletics InsulPrimer 15 kg tub nsuletics Insul Poly 14 Basecoat 25 kg bag Reinforcing mesh 1 mx 50 m roll Fixings boxed by the manufacturer nsul Phen Board phenolic Insulation shrunk wrapped in individual packs number of boards varies depending on thickness 3 3 The insulation boards should be stored on a firm clean level b
18. eve U value U value Thickness of insulation mm W m K 215 mm Brickwork 200 mm Dense blockwork a 0 56 Wm K N 1 75 Wm K 0 19 100 110 0 25 80 80 0 26 70 80 0 28 70 70 0 30 60 70 0 35 50 60 1 Wall construction inclusive of 13 mm plaster 0 57 W m K7 5 mm render A 1 0 W mr K Brickwork protected with 17 1 mortar or dense blockwork with 6 7 mortar 0 88 W mr K Insulation as per section 6 1 2 Calculation based on a system that included 7 fixings per m with a point thermal transmittance X 0 002 W K Use of other types of fixings should be calculated in accordance with BS EN ISO 6946 2007 3 Based on calculations in accordance with BS EN ISO 6946 2007 4 Based upon incremental insulation thickness of 10 mm 6 3 The system can maintain or contribute to maintaining continuity of thermal insulation at junctions between external walls and junctions Details shown in section 16 will allow use of the yvalues Psi for Accredited Construction Details in Emission Rate calculations to SAP 2009 or the Simplified Building Energy Model SBEM Guidance on limiting heat loss at junctions can be found in Page 6 of 16 England and Wales Approved Documents to Part L and for new thermal elements to existing buildings Accredited Construction Details version 1 0 For new build see also SAP 2009 Appendix K and the iSBEM User Manual Scotland Accredite
19. h in plane finished surface 14 4 On existing buildings purpose made window sills must be fitted to extend beyond the finished face of the system see Figure 4 New buildings should incorporate suitably deep sills 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 Internal wet work eg screeding or plastering should be completed and allowed to dry prior to the application of a system 15 Approved installers 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 4 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 be employed This may include unannounced site inspections 16 Procedure General 6 1 Application is carried out in accordance with the Certificate holder s current installation instructions 6 2 Weather conditions should be monitored to ensure correct appl
20. ication and curing conditions Application of the coating material should not be applied at temperatures below 5 C or above 30 C nor if exposure to frost is likely In addition 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 profile fixings at 300 mm maximum centres see Figure 2 Beads and expansion joints are incorporated as specified Figure 2 Typical section at base level profile fixing profile fixing base profile base profile dpc ground floor edge insulation outside scope of Certificate existing building new building Page 10 of 16 16 5 The first run of insulation boards is positioned on the base profile The insulation board is securely fixed to the substrate starting at the base trim level using the projectspecific fixing type and layout as shown in the project specification and drawings see Figure 3 Figure 3 Typical fixing pattern eS D RM amp Q BD B B 8 B B D RQ amp Q B e e ele D B B B Pattern 1 5 x 60 mm head fixings Pattern 2 4 x 140 mm head fixings 16 6 The boards are always laid in brickbond fa
21. ich should include the replacement and resealing of joints for example between the insulation systems and window and door frame 12 2 Damaged areas must be repaired using the appropriate components and the procedures detailed in the Certificate holder s installation instructions and in accordance with BS EN 13914 2005 13 Durability 4 13 1 The system should remain effective for at least 3O years provided any damage to the surface finish is 53 epaired immediately and regular maintenance is undertaken as described in section 12 of this Certificate 13 2 The finishes may break up the flow of water on the surface and reduce the risk of discoloration by water runs The finish may become discoloured with time the rate depending on locality 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 3 To maintain a high quality aesthetic appearance it may be necessary to periodically overcoat the building using system compatible coatings recommended by the Certificate holder and in accordance with BS EN 1062 1 2004 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
22. ndbook Non Domestic A 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 Page 2 of 16 Regulation 28 b Resistance to moisture and weather Comment The system provides a degree of protection against rain ingress See sections 4 4 and 10 1 of this Certificate Regulation 29 Condensation Comment The system can contribute to minimising the risk of interstitial and surface condensation 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 can satisfy or contribute to satisfying this requirement See sections 8 1 to 8 3 8 5 and 8 6 of this Certificate Regulation 39 a i Conservation measures The system can contribute to satisfying these Regulations See sections 6 2 and 6 3 of this Certificate Regulation 40 Target carbon dioxide emission rate Comment The 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 cont
23. ng 16 11 The InsulPoly 14 Basecoat should be mixed with from 4 to 5 litres of potable water per 25 kg bag for a minimum of 5 minutes with an electric paddle mixer to disperse the additives Corner beads with integral glassfibre wings should be fitted to all corners using the InsulPoly applied to the surface of the insulation using a stainless embedded in the wet render using the trowel and mech The sheets of mesh should be lapped by a minimum of 4 Basecoat A thickness of 3 mm of the basecoat should be steel trowel or a render pump The glassfibre mesh should be anical fixings applied if required by the project specification 100 mm Diagonal patches of mesh approximately 300 mm by 200 mm should also be installed at the corners of window door openings see Figure 8 16 12 The second 3 mm thick coat of basecoat should be applied to give a total render thickness of 6 mm The surface of the basecoat should be sponged up smooth to provide a smooth surface for the InsukSil finish Figure 6 Additional reinfo rcement at openings ZN 300 mm by 200 mm Render finish 6 13 The basecoat should be left to dry thoroughly b finish dry for approximately 24 hours prior to the application efore the application of Insul Sil Render Depending on the prevailing conditions the render may take three days to dry cure completely prior to the application of the primer
24. ns 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 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 Only details approved by the Certificate holder should be used 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 rain 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 this type of system 11 Risk of condensation 7 A c construction including at junctions openings and penetrations to minimise the risk of condensation The s 1 1 Designers must ensure that an appropriate condensation risk analysis has been carried out for all parts of recommendations of BS 5250 2011 should be followed Page 8 of 16 Surface condensation 47 11 2 Walls will adequately limit the risk of surface condensation 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 f 11
25. nstallation method 1 2 Ancillary materials also used with the system but outside of the scope of this Certificate profiles a range of standard profiles for details such as bases edge stops corners render stops movement joints and expansion joints available in either aluminium galvanized steel with a polyester powder paint or stainless steel profile connectors and fixings silicone based joint sealant e PU foam 1 3 For the through pinned installation method the insulation boards are secured mechanically fixed to the substrate secured initially with one centrally placed mechanical fixing A thickness of 3 mm of the basecoat should is applied to the surface of the insulation The glassfibre mesh should be embedded in the wet render using the trowel and secured with a minimum of either four or five mechanical fixings per board A second 3 mm thick coat of basecoat is applied to give a total render thickness of 6 mm When dry primer is applied followed by the application of the decorative finish coat For the nonthrough pinned installation method the fixings are installed just through the insulation using the project specific fixing pattern prior to application of the basecoat reinforcement mesh and decorative topcoat Page 4 of 16 2 Manufacture e As part of the assessment and ongoing surveillance of the quality of the system components the BBA has e agreed with the manufacturer the quality control procedures and product t
26. ntrol of condensation in buildings BS 8000 3 2001 Workmanship on building sites Code of practice for masonry BS EN 1062 1 2004 Paints and varnishes Coating materials and coating systems for exterior masonry and concrete Classification BS EN 1990 2002 Eurocode Basis of structural design NA to BS EN 1990 2002 UK National Annex to Eurocode Basis of structural design BS EN 1991 1 4 2005 Eurocode 1 Actions on structures General actions Wind actions NA to BS EN 1991 1 4 2005 UK National Annex to Eurocode 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 NA to BS EN 1996 2 2006 UK National Annex to Eurocode 6 Design of masonry structures Design considerations selection of materials and execution of masonry BS EN 13166 2012 Thermal insulation products for buildings Factory made phenolic foam PF products 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 BS
27. of a particular product 14 Site survey and preliminary work 14 1 A pre installation survey of the property is carried out to determine suitability for treatment and the need for any necessary repairs to the building structure before application of the Insul Sil P External Wall Insulation System A specification is prepared for 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 e areas where flexible sealants must be used e any alterations to external plumbing e the position of fire barriers where required Page 9 of 16 14 2 The survey should include tests conducted on the walls of the building by the Certificate holder or their approved installers see section 15 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 relevant wind speed data for the site and the pull out resistances see section 7 14 3 Surfaces should be sound clean and free from loose material The flatness of surfaces must be checked this may be achieved using a straightedge spanning the storey height Any excessive irregularities ie greater than 10 mm in 1 metre must be made good prior to installation to ensure that the insulation boards are installed with a smoot
28. ractors 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 Insul Sil P 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 Insul Sil P External Wall Insulation System consists of phenolic insulation boards which are mechanically fixed to the substrate wall through the reinforcing mesh or directly through the insulation high polymer content basecoat and a silicone render finish The system comprises of the following components see Figure 1 Insulation e InsulPhen Board phenolic insulation 1200 mm by 600 mm in a range of thicknesses between 40 mm and 130 mm in 10 mm increments with a nominal density of 40 kg m 3 a minimum tensile strength of 50 kN m and a minimum compressive strength of 150 kN m Boards are manufactured to comply with the requirements of BS EN 13166 2012 Mechanical fixings e mechanical fixings proprietary external wall insulation fixings of adequate length to suit the substrate and insulation thickness selected from Ejotherm NT U polyethylene PE HD with stainless steel or electro galvanized pins Ejotherm STR
29. s 4 4 and 10 1 of this Certificate Standard 8 15 Condensation Comment The system will satisfy the requirements of this Standard with reference to clauses 3 15 10 3 15 4012 and 3 15 5 ll2 See sections 11 3 and 11 4 of this Certificate Standard 6 1 b Carbon dioxide emissions Standard 6 2 Buildings insulation envelope Comment The system can contribute to satisfy these Standards with reference to clauses or parts of 6 1 1 LAUA A LEN 1102 2 WA 2 3 GZA 62A 2 2 AM DIA 6 2 92 6 2 10 6 2 11 6 2 1212 and 6 2 13 l2 See sections 6 2 and 6 3 of this Certificate Standard 7 1 a b Statement of sustainability Comment 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 sustainability as defined in this Standard with reference to clauses 7 1 402 Aspect 102 and 210 7 1 6012 Aspect 1012 and 20 and 7 1 702 Aspect 1102 See sections 6 2 and 6 3 of this Certificate Regulation 12 Building standards applicable to conversions Comment 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 6012 1 Technical Handbook Domestic 2 Technical Ha
30. shion see Figure 3 Care must be taken to ensure that the boards are fitted tightly to each other The boards are interlocked on the external corners Gaps are filled with expanding PUR foam The line and level are checked as work progresses 16 7 Holes are drilled into the substrate to a required depth Care is taken to ensure that the depth of enbedment of the fixing into the substrate is as specified Allowance is 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 Depending on the project design requirements mechanical fixings are inserted directly through insulation or the reinforcing mesh after basecoat has been applied and insulation and tapped firmly into place securing the insulation board to the substrate The fixings are either hammered or screwed in depending on the type specified 16 8 To fit around details such as doors and windows insulation boards may be cut with a sharp knife or a fine toothed saw If required purpose made window sills are fitted at this stage They are designed to prevent water ingress and incorporate drips to shed water clear of the system see Figure 4 Page 11 of 16 Figure 4 Details around openings lt a
31. tificate 4 8 lt is essential that the system is installed and maintained in accordance with the conditions set out in 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 on the finished face of the system 5 Practicability of installation The system should only be installed by specialised contrac registration by the Certificate holder 4 ors who have successfully undergone training and Note The BBA operates a UKAS Accredited Approved Installer Scheme for external wall insulation details of installer companies approved are included on the BBA s website www bbacerts co uk 6 Thermal performance 6 1 Calculations of the thermal transmittance U value should be carried out in accordance with BS EN ISO 6946 2007 and BRE Report BR 443 2006 using declared thermal conductivity p values given in Table 2 Table 2 Declared thermal conductivity values Insulation Thickness mm Np value W m K Insu Phen Board 25 to 44 0 021 Insulation gt 45 0 020 53 oF fixings the insulating value of the substrate masonry and its internal finish Example U values of walls 7 The U value of a completed wall will depend on the thickness of the insulation used the number and type incorporating the system are given in Table 3 Table 3 Insulation thickness required to achi
32. 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 mail bba star co uk Herts WD25 QBA website www bbacerts co uk Page 16 of 16
33. ture 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 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 e the right of the Certificate holder to manufacture supply install maintain or market the product system e actual installations of the product system including their nature design methods performance workmanship and maintenance e any works and constructions in which the product system is installed including their nature design methods performance workmanship and maintenance e any loss or damage including personal injury howsoever caused by the product system including its manufacture supply installation use maintenance and removal e any claims by the manufacturer relating to CE marking 19 6 Any information relating
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