EPS External Wall Insulation System
Contents
1. of approximately 20 for a render thickness of 6 mm 11 6 The water vapour resistance factor p for the EPS insulation boards as taken from BS EN ISO 10456 2007 Table 4 is e adhesive 20 e EPS 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 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 should have a service life of at least 30 years provided any damage to the surface finish is repaired immediately and regular maintenance is undertaken This includes checks on joints in the system and ext2. 3 as specified by the Certificate holder should be followed The advice of the Certificate holder should be sought to ensure 4 4 4 Surfaces of a system he proposed fixing pattern is sufficient 2005 4 3 All modifications such as provision for fire stopping see sections 8 and 9 and necessary repairs to the building are completed before installa 1 ion commences 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 5 Where surfaces are covered with an existing render it is essential that the bond between the background and the render is adequate All loose areas should be hacked off and reinstated Further guidance is given in BS EN 13914 4 6 On existing buildings purpose made window sills must be fitted to extend beyond the finished face of the system New buildings should incorporate suitably deep sills 4 7 nternal wet work eg screeding or plastering should be completed and allowed to dry prior to the application 15 Approved installers Application of the system within the context of this Certificate is carried out by approved installers recommended or recognised by the Cert
3. 5 are the results of calculations based upon e fixings arranged in the pattern described and shown in section 16 9 and Figure 3 pullthrough resistances determined by the BBA from tests on anchors with 60 mm and 90 mm diameter plates mean value of five tests with a factor of safety of 2 5 applied 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 ie by calculating the mean of the lowest five values and multiplying by 0 6 In accordance with this guideline a safety factor of two is applied to this figure to establish the design value to resist ultimate loads Table 5 Characteristic values to establish ultimate wind load capacity Factor EPS EEPS Thickness mm gt 60 gt 60 gt 60 Plate diameter of anchor mm 60 90 60 Characteristic pull over resistance per anchor N 415 450 421 Factor of safety 2 5 25 2 5 Design pullover resistance N 166 180 169 1 Calculation based on insulation board 1200 mm by 600 m total area 0 72 m attached by six fixings 2 Pulover resistance of insulation over the head of the fixing 3 The safety factor of 2 5 is based on the assumption that all insulation boards are quality control tested to establish tensile strength perpendicular to the face of t
4. Marmorit Warm Wall sills are fitted They are designed to prevent water ingress and incorporate drips to shed water clear of the system 6 12 Installation continues until the whole wall is completely covered and built up to the building soffits and eaves in new and existing buildings see Figure 4 Figure 4 Typical roof eaves detail Hry r reinforced render system Le insulation Page 12 of 18 Movement joints 16 13 Generally movement joints are required in the system If an expansion joint is incorporated in the substrate it must be replicated through the system see Figure 5 Figure 5 Movement joint e ____ substrate wall Te adhesive i i i j I i i x a Fi insulation 3 i I I I I l we reinforced render system expansion joint Reinforcing 16 14 The SM300 and SM700 SM700 PRO is prepared by mixing the contents of each 25 kg or 30 kg bag with 5 8 litres of clean water using the same method as for the adhesive see section 16 7 16 15 Prior to the render coat a bead of low modulus silicone sealant with Knauf Marmorit Warm Wall Sealing Tape or a Knauf Marmorit Warm Wall APU Profile is installed 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 For non insulated reveals only a bead
5. 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 EN ISO 10456 2007 Building materials and products Hygrothermal properties Tabulated design values and procedures for determining declared and design thermal values ETAG 004 2000 Guideline for European Technical Approval of External Thermal Insulation Composite Systems with Rendering ETAG 014 2002 Guideline for European Technical Approval of plastic anchors for fixing of external thermal insulation composite systems with rendering BRE Report BR 135 2013 Fire Performance of External 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 Page 17 of 18 Conditions of Certification 19 Conditions 19 1 This Certificate 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
6. and securing insulation boards 6 5 The Knauf Marmorit Warm Wall base profile is secured to the external wall above the damp proof course using the approved profile fixings at approximately 300 mm centres Insulation boards are initially fixed to the external surfaces of the walls using adhesive mortar to secure the boards in place 6 6 The board adhesive is prepared for use by mixing the contents of each 25 kg or 30 kg bag with approximately ter using an electrically driven paddle mixer The material is left to stand for approximately five minutes in with if required a small addition of water to give a smooth workable consistency d adhesive is applied to the back of the slabs either by notch trowel to achieve a full bond or around eter of the board and in six equal sized dabs distributed over the remaining area of the board for an 6 8 The insulation slabs must be pressed firmly to the substrate immediately after application of the board adhesive y together with the vertical joints staggered Any delay may result in a weak bond Joints in the system larger than 2 mm should be filled with slivers of EPS board or PU foam and any high spots or irregularities removed with a rasp over the whole surface Page 11 of 18 16 9 The first run of insulation is positioned on the base profile Holes are drilled into the substrate to the required depth through the insulation at the corners of each slab and at positions whic
7. conditions however the basecoat must be left to harden for 3 to 5 days and any contaminants such as grease and chalking removed before the Quarzgrund Primer is applied by roller or brush The Quarzgrund Primer is allowed to dry before application of the Conni Addi Noblo or SP260 finish coats 16 20 The Noblo or SP260 is prepared by mixing the contents of each 30 kg bag with approximately 5 8 litres of cold clean water using the same method as for the SM300 and SM 700 SM 700 PRO mortar and adhesive The Noblo or SP260 is applied by stainless steel trowel to the grain size 1 5 mm 2 mm and 3 mm Conni and Addi are ready to use although a maximum of 2 clean water may be mixed into the 25 kg tub prior to application Conni and Addi are applied by stainless steel trowel to the grain size 1 0 mm 1 5 mm 2 mm or 3 mm Conni Addi Noblo or SP260 are textured in a circular motion with a plastic trowel until the desired effect is achieved 6 21 To prevent the render from drying too rapidly it should not be applied in direct sunlight and continuous surfaces should be completed without a break 6 22 Depending on the weather conditions Noblo and SP260 should be allowed to dry for approximately 3 to 5 days before the application of the paint finish Conni and Addi are through coloured products which do not require an additional paint coat 6 23 The decorative finish should not be applied in wet weather at temperatures below 5 C or wh
8. multi stranded alkali and slide resistant glassfibres with ting weighing approximately 160 g m with a nominal mesh size 4 mm by 4 mm Heavy Duty Reinforcement used with and with the same specification as Knauf Marmorit but weighing approximately 200 g m with a nominal mesh size 5 mm by 5 mm Quarzgrund Primer a white aqueous liquid emulsion with quartz sand orit Noblo Knauf Marmorit Mak 3 premixed dry mortar with lime cementitious binder requiring the addition of about 25 to 30 water Each available in three grain sizes 1 5 mm 2 mm and 3 mm Rolls Knauf Marmorit RP240 Knauf Marmorit Carrara Knauf Marmorit Noblo Light pre mixed Pico der Feine premixed dry mortar with lime cementitious binder requiring the addition of 25 Available in 0 6 mm grain size SP260 premixed dry mortar with lime cementitious binder requiring the addition of 25 to Conni a ready mixed vinylic siloxane binder giving a textured finish Available in four grain 5S mm 2 mm and 3 mm Addi a ready mixed acrylic textured finish topcoat Available in four grain sizes 1 mm 1 5 mm 2 mm and 3 mm Ancillary materials components The fol owing ancillary items are used to aid the installation of the system but are outside the scope of this Certificate wall profiles a range of standard profiles for such details as wall base end stop corner mesh and expansion joints expansion profile horizo
9. of low modulus silicone sealant is required see Figure 6 Figure 6 Detail around window and door frames LO silicone sealant corner bead sealing tape and LJ lm silicone sealant Wi corner bead 16 16 The basecoat render is applied either by spray equipment or stainless steel trowel to the surface of the dry insulation to a minimum thickness of 5 mm The mesh is bedded immediately into the basecoat with 100 mm minimum overlap at joints and must be in the upper third of the basecoat render Additional pieces of reinforcing mesh 250 mm by 500 mm are used diagonally at the comers of openings see Figure 7 16 17 Corner beads are fixed to the building corners door and window heads and jambs They are formed using an adhesive coat in accordance with the Certificate holder s instructions see Figure 10 Page 13 of 18 Figure 7 Additional reinforcement at openings glassfibre mesh Se 16 18 Stop beads are positioned vertically eg at party wall positions where the adjoining house does not require treatment Rendering and finishing 16 19 The drying period of any render will depend on the applied thickness and weather
10. the risk of interstitial and surface condensation See sections 11 1 11 2 and 11 4 of this Certificate Conservation of fuel and power The system can contribute to satisfying this Requirement See sections 6 2 and 6 3 of this Certificate Materials and workmanship The system is acceptable See section 13 1 and the Installation part of this Certificate CO emission rates for new buildings The system can contribute to satisfying this Regulation See sections 6 2 and 6 3 of this Certificate gy The Building Scotland Regulations 2004 as amended ah Regulation Comment Regulation Standard Comment Standard Comment Standard Comment Standard Comment Standard Comment Standard Standard Comment Standard Comment Regulation Comment 8 1 2 2 6 DG 6 1 b ow 7 a b Durability workmanship and fitness of materials The system can contribute to a construction satisfying this Regulation See sections 12 1 12 2 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 external surface of the system has a low risk surface spread of flame classification with reference to clauses 2 6 4 2 2 6 51 and 2 6 62 See sections 8 1 8 2 8 5 8 6 and 8 7 o
11. 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 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 main
12. 80 1 Based upon incremental insulation thickness of 10 mm 2 Wall construction inclusive of 13 mm plaster 0 57 W m K 5 mm render 1 0 W mr K brickwork protected with 17 mortar or dense blockwork with 6 7 mortar mortar 0 88 W mr K EPS insulation as per section 6 1 3 Calculation based on a bonded system that included seven galvanised steel fixings with 8 mm diameter and x 0 004 W K per m2 Use of other types of fixings should be calculated in accordance with BS EN ISO 6946 2007 6 3 The systems can contribute to maintaining continuity of thermal insulation at junctions between elements and openings For Accredited Construction Details the corresponding values Psi in BRE Information Paper IP 1 06 Table 3 may be used in carbon emission calculations in Scotland and Northern Ireland Detailed guidance for other junctions and on limiting heat loss by air infiltration can be found in England and Wales Approved Documents to Part L and for new thermal elements to existing buildings Accredited Construction Details version 1 0 See also SAP 2009 Appendix K and the iSBEM User Manual for new build Scotland Accredited Construction Details Scotland Northern Ireland Accredited Construction Details version 1 0 7 Strength and stability 7 1 When installed on masonry or concrete walls the system can adequately transfer to the wall the selfweight and negative suction and positive pr
13. F lt APPROVAL Knauf Marmorit UK GmbH A INSPECTION TESTING St Andrews House CERTIFICATION St Andrews Road TECHNICAL APPROVALS FOR CONSTRUCTION Avonmouth P Ta vani Fax 0117 9823025 Aaremeni Get el ax email enquiries marmorit co uk 13 5000 website www marmorit co uk Product Sheet 1 KNAUF MARMORIT WARM WALL EXTERNAL WALL INSULATION SYSTEMS KNAUF MARMORIT WARM WALL EPS EXTERNAL WALL INSULATION SYSTEM This Agr ment Certificate Product Sheet relates to the Knauf Marmorit Warm Wall EPS External Wall Insulation System comprising expanded polystyrene EPS insulation boards or enhanced expanded polystyrene insulation boards with a glassfibre reinforcing mesh and render finishes and suitable for use on new or existing buildings of sound masonry and dense or notines concrete The system is mechanically fixed with anchors and a supplementary adhesive 1 Hereinafter referred to as Certificate CERTIFICATION INCLUDES e factors relating to compliance with Building Regulations where applicable factors relating to additional non tegulatory 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 the thermal performance of external walls and co
14. Mak 3 Marmorit RP240 Marmorit Carrara Marmorit Pico der Feine Marmorit Noblo Light B s1 dO Marmorit Conni Marmorit Addi B s2 dO 8 2 The fire classifications apply to the full range of thicknesses covered by this Certificate 8 3 In multi storey applications a minimum of one stainless steel anchor per square metre is required above the first floor The anchor is applied to prevent collapse should the insulation be lost to fire and must be designed to resist the bending and shear stresses resulting from the dead load from the render Page 8 of 18 5 8 5 The system is classified as low risk combustible materials It is suitable for use in buildings up to 18 m in 59 height and cannot be used within 1 m of the boundary Calculations for unprotected areas apply with some minor exceptions 4 Application to second storey walls and above should include fire barriers in line with compartment walls and The system is suitable for use on or at any distance from the boundary in buildings up to 18 m in height 53 my cach floor level see Figure 2 For installation of fire barriers refer to the guidance given in BRE Report BR 135 ZO Figure 2 Fire barrier a decorative finish adhesive insulation mechanical fixing reinforcement mesh 200 mm substrate i a ee 8 7 Designers must ensure that the completed wall provides any required
15. 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 boards are delivered to site wrapped in polythene Each pack carries product identification and batch numbers 3 2 Components are delivered to site in the packaging and quantities listed in Table 2 Each package carries the product identification manufacturer s batch number and the BBA logo incorporating the number of this Certificate Table 2 Component supply details Component Quantity and package Knauf Marmorit SM700 adhesive basecoat 30 kg bag Knauf Marmorit SM700 PRO adhesive basecoat 25 kg bag Knauf Marmorit SM300 25 kg bag Knauf Marmorit Conni finishing coat 25 kg plastic tub Knauf Marmorit Rolls finishing coat 30 kg bag Knauf Marmorit RP240 finishing coat 30 kg bag Knauf Marmorit Carrara finishing coat 30 kg bag Knauf Marmorit Pico der Feine finishing coat 30 kg bag Knauf Marmorit Noblo Light finishing coat 30 kg bag Knauf Marmorit Mak 3 finishing coat 30 kg bag Knauf Marmorit Noblo finishing coat 30 kg bag Knauf Marmorit SP260 finishing coat 30 kg bag Knauf Marmorit Addi finishing coat 25 kg plastic tub Knauf Marmorit Quarzgrund Primer 15 kg plastic tub Knauf Marmorit Reinforcement 160 g m Mesh 1 m wide 50 m rolls Knauf Marmorit Heavy Duty Reinforcement 200 g m Mesh 1 m wide 50 m rolls Knauf Marm
16. e section 6 2 of this Certificate Building standards applicable to conversions All comments given for this system under Regulation 9 Standards 1 to 6 also apply to this Regulation with reference to clause O 12 1 ll2 and Schedule 6012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Page 2 of 18 5 The Building Regulations Northern Ireland 2012 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 The system will satisfy this Regulation 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 external surface of the system has a low risk surface and can satisfy this Regulation See sections 8 1 8 2 8 4 8 6 and 8 7 of this Certificate Regulation 39 a i Conservation measures 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 Construc
17. en frost is expected Freshly coated work should be protected from rain and frost 6 24 At the tops of walls the system should be protected by an adequate overhang or by an adequately sealed purpose made flashing see Figures 4 and 8 6 25 Care should be taken in the detailing of the system around openings and projections to prevent water ingress see Figures 8 and 9 6 26 On completion of the installation external fittings eg rainwater goods are refixed through the system into the substrate outside the scope of this Certificate Page 14 of 18 Figure 8 Detail at tops of walls Figure 9 Window sill detail window sill LI J I i LILY J oy ol e reinforced render system E LA Lees J eon insulation Page 15 of 18 Figure 10 Corner detail reinforced render system fixing insulation meshed corner bead 17 Tests An examination was made of data relating to 18 Investigation component characterisation density of insulation slab heat spray cycling resistance to freez impact resistance e thaw water absorption of render water vapour permeability surface spread of BS EN 11925 2 pullout strength of durability of finish thermal conductivi
18. ender insulation system to the substrate wall The number of fixings and the span between fixings should be determined by the system designer The fixing must be selected to give adequate support to the weight of the system at the minimum spacing given in this Certificate As a guide typical characteristic pull out strengths for the fixings are given in Table 4 however these values are dependent on the substrate and the fixing must be selected to suit the oads and substrate concerned A minimum of one metal fixing per square metre is required to satisfy fire regulations see section 8 Table 4 Fixings typical characteristic pull out strengths on concrete substrate Fixing type Typical pullout strength N Polyethylene PE HD with metal centre screw Ejotherm ST U ETAO02 0018 1200 Polypropylene with metal centre pin Termoz 8 U ETAO2 0019 1500 Polyethylene with metal centre screw Termoz 8 UZ ETA02 0019 1200 Polyamide with metal centre screw Termoz KS 8 ETAO4 01 14 500 Polyethylene PE HD with metal centre pin Ejotherm NT U ETA05 0009 400 Polypropylene with glass reinforced plastic GRP centre pin Koelner K18M ETA06 0191 1200 Polypropylene with glass reinforced plastic GRP centre pin Ejotherm NTK U ETA07 0026 900 1 Values are determined in accordance with ETAG 014 2002 and are dependent on the substrate Page 7 of 18 7 7 The resistance forces data given in Table
19. ernal plumbing fitments to prevent leakage of rainwater into the system enabling steps to be taken to correct the defects see 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 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 betore application of the system A specification is prepared for the building indicating e the position of beads e detailing around windows doors and at eaves e dpc level e areas where additional reinforcement will be required Page 10 of 18 e exact position of expansion joints e areas where flexible sealants must be used e any alterations to external plumbing e where required the posi n ion of fire barriers 14 2 Trial tests are conducted on the wall 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 the relevant wind speed data for the site and together with the Certificate holder s recommendations It is recommended that the minimum layout of fixings see Figure
20. essure 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 adhesive and insulation 7 3 Negative wind pressure is resisted by the bond between each component The insulation boards are retained by the external wall insulation system anchors 7 4 The wind loads on the wall should be calculated in accordance with BS EN 1991 1 4 2005 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 it is recommended that a load factor of 1 5 is used to determine the ultimate wind load to be resisted by the system 7 5 Assessment of structural performance for individual installations should be carried out by a suitably qualified and experienced individual to confirm that rength to resist the additional loads that may be applied as a result of installing the ribution that may occur from the insulation system he substrate wall has adequate s system ignoring any positive cont e the proposed system and associated fixing layout provides adequate resistance to negative wind loads based on the results of site investigation and test results given in Table 5 see section 7 7 7 6 Provided the substrate wall is suitable and an appropriate fixing is used the mechanical fixings will transfer the weight of the r
21. f this Certificate Spread on external walls The system incorporates materials which would not be classed as non combustible as defined in this Standard with reference to clauses 2 7 12 2 7 22 and Annex 2A See sections 8 1 8 2 8 5 8 6 and 8 7 of this Certificate Precipitation The system will contribute fo a construction satisfying this Standard with reference to clause 3 10 102 and 3 10 2012 See sections 4 4 and 10 1 of this Certificate Condensation The system can satisfy this Standard with reference to clauses 3 15 12 3 15 4023 and 3 15 52 See sections 11 3 and 11 4 of this Certificate Carbon dioxide emissions Buildings insulation envelope The system can contribute to satisfying these Standards with reference to clauses or parts of 6 1 10 20 O13 1 1 107 6 2 MA 2 30 OA 2528 26 2 7 2184 6 2 92 6 2 10 6 2 1 10123 6 2 1212 and 6 2 13 2 See sections 6 2 and 6 3 of this Certificate Statement of sustainability The system can contribute to satisfying the relevant Requirements of Regulation 9 Standards 1 to 6 and therefore will contribute to a construction meeting a bronze level of sustainability as defined in this Standard In addition the product can contribute to a construction meeting a higher level of sustainability as defined in this Standard with reference to clause 7 1 4012 Aspects 12 and 201 7 1 62 Aspects 12 and 20 and 7 1 7012 Aspects 1012 Se
22. flame tests to BS 476 7 1987 BS EN 1350 11 2007 BS EN 1328 1997 2007 fixings ty s 18 1 The manufacturing process the methods adopted for quality control of manufactured and boughtin components and details of the quality and composition of the materials used were examined 18 2 An assessment 18 3 The practicabi of the risk of interstitial condensation was undertaken lity of installation and the effectiveness of detailing techniques were examined Page 16 of 18 Bibliography BS 476 7 1987 Fire tests on building materials and structures Method of test to determine the classification of the surface spread of flame of products BS 5250 2011 Code of practice for control of condensation in buildings BS 8000 3 2001 Workmanship on building sites Code of practice for masonry BS EN 1328 1997 Cement Bonded Particleboards Determination of Frost Resistance 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 11925 2 2007 Reaction to fire tests Ignitability of products subjected to direct impingement of flame Single flame source test BS EN 13163 2012 Thermal insulation products for buildings Factory made expanded polystyrene EPS products
23. h will allow a minimum of eight fixings per square metre at edge zones and four fixings per square metre in the main area of the wall see Figure 3 Around openings additional fixings should be used at 300 mm centres The mechanical fixings are inserted and tapped or screwed firmly into place securing the insulation to the substrate Subsequent rows of slabs are positioned so that the vertical board joints are staggered and overlapped at the building corners and so that the board joints do not occur within 200 mm of the corners of openings Figure 3 Insulation board fixing pattern additional fixings at 300 mm centres around opening e 2 g 8 De B Knauf Marmorit Warm Wall EPS 2 Knauf Marmorit Warm Wall e e g e 8 Mechanical Fixing l edges of insulation slabs staggered g 2 e 300 E 1 5m a 1200 typical edge zone edge zone 8 fixings per m min standard zone 4 fixings per m min Note The above fixing requiremens are standard in areas of high windloads please contact Certicicate Holder for further advice 6 10 Care must be taken to ensure that all slab edges are butted tightly together and alignment should be checked as work proceeds 6 11 To fit around details such as doors and windows insulation slabs may be cut with a sharp knife finetooth saw or hot wire If required purpose made Knauf
24. he board Impact resistance 7 8 Hard body impact tests were carried out in accordance with ETAG 004 2000 The system is suitable for use in Categories I0 I2 and IIIB as given in Table 6 Table 6 Impact resistance Categories Rendering system Use Categories Base coat with finishing coat Dibled Siigle esh Marmorit Noblo Marmorit Noblo Light Marmorit Addi Marmorit Rolls Marmorit SP260 Marmorit Category Il Category Ill RP240 Marmorit Mak 3 Marmorit Carrara Marmorit Pico der Feine Marmorit Category Category ll Conni 1 Use Category a zone readily accessible at ground level to the public and vulnerable to hard body impacts but not subjected to abnormally rough use 2 Use Category Il a zone liable to impacts from thrown or picked objects but in public location where the height of the system will limit the size of the impact or at lowers levels where access to public is primarily to those with some incentive to exercise care 3 Use 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 8 1 The surface spread of flame classifications for the system in accordance with BS EN 13501 1 2007 are 53 given in Table 7 Table 7 Surface spread of flame classification Rendering system Class according to Base coat with finishing coat BS EN 13501 1 2007 Marmorit Noblo Marmorit Rolls Marmorit SP260 Marmorit
25. ificate 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 un dertaken 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 east one inspection per annum by the Certificate holder to ensure suitable site practices are being employed This may include unannounced site inspections 16 Procedure General 16 1 Installation of the system must be carried out in accordance with the current installation instruc Certificate holder 4 ions of the 16 2 Weather conditions should be monitored to ensure correct application and curing conditions The adhesive render and coating must not be applied at temperatures below 5 C or above 30 C if exposure to frost is likely or in damp wet conditions The render must be protected from rapid drying and should not be applied on elevations in direct sunligh and butted tight or where the substrate is hot 5 8 litres of wa and mixed aga 6 7 The boar the whole perim uneven background 6 3 All rendering should be in accordance with the relevant recommendations of BS EN 13914 1 2005 6 4 The adhesives and render must be mixed using a paddle mixer conventional concrete mixers are unsuitable Positioning
26. ntal and vertical sealant silicone sills wall copings PU foam filler stainless steel fire fixings fire breaks fungicidal wash 1 2 The in section 16 1 3 Al stabilising solution dubbing render sulation boards are coated with adhesive mortar and mechanically fixed to the substrate The composite mortar is trowelapplied to the external face of the board and the reinforcing mesh embedded and left to dry The Quarzgrund Primer is applied to dry mortar and allowed to dry then finished with a proprietary finish coat see components are subject to routine in factory quality control Page 4 of 18 Figure 1 Knauf Marmorit Warm Wall EPS External Wall Insulation System render finish composite mortar mechanical glassfibre mesh substrate base profile adhesive mortar insulation board fixing 2 Manufacture As part of the assessment and ongoing surveillance of product quality the BBA has e agreed with the manufacturer the quality control procedures and product testing to be undertaken e assessed and agreed the quality control operated over batches of incoming materials e monitored the production process and verified that it is in accordance with the documented e evaluated the process for management of non conformities e checked that equipment has been properly tested and calibrated Process e undertaken to carry out the above measures on a regular basis as part of
27. ntribute to satistying the Building Regulations see section 6 Strength and stability the system can adequately resist wind loads and impact damage see section 7 Behaviour in relation to fire the system has either a Class B s1 dO or a B s2 dO surface spread of flame classification in accordance with BS EN 13501 1 2007 see section 8 Risk of condensation the system can contribute to limiting the risk of interstitial and surface condensation see section 11 Durability with appropriate care the system should 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 aren 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 COOMA egal e Date of Second issue 3 October 2013 John Albon Head of Approvals Claire Curtis Thomas Originally certificated on 20 May 2013 Energy and Ventilation Chief Executive Certificate amended on 22 October 2013 to make minor change to text in Design Considerations section 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 n
28. o 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 Page 9 of 18 11 Risk of condensation FI gM the construction including openings and penetrations at junctions between the insulation system and windows to ensure that condensation does not occur at the surface or within The recommendations of the BS 5250 2011 should be followed Surface condensation gt 1 1 Designers must ensure that an appropriate condensation risk analysis has been carried out for all parts of 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 not exceed 1 2 W m K at any point Guidance may be obtained from BS 5250 2011 Section 8 and Annex D and BRE Report BR 262 2002 Interstitial condensation Ay 1 3 Walls will adequately limit the risk of surface condensation 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 this Certificate 11 5 The render has an equivalent air layer thickness S of approximately 0 06 m This corresponds to a water vapour resistance factor p
29. orit mechanical fixings boxed by manufacturer 3 3 Care must be taken when handling the insulation to avoid damage It must be protected to sunlight contact with solvents bitumen or materials containing volatile organic components from prolonged exposure and exposure fo open flame or other ignition sources In addition it must be stored on a firm clean level base off the ground and under cover until required 3 4 The renders must be stored in dry conditions off the ground and protected from excessive heat moisture and frost at all times Page 5 of 18 Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Knauf Marmorit Warm Wall EPS External Wall Insulation System 4 General 4 1 When installed in accordance with this Certificate the system is effective in reducing the thermal transmittance U value of 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 thermal benefit obtained Only details approved by the Certificate holder must 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 other potential sources of moisture penetration have been dealt with separately and there are no sign
30. period of fire resistance and refer to the documents supporting the national Building Regulations for detailed guidance 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 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 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 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 see sections 16 24 and 16 25 0 3 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 t
31. s of dampness on the inner surface of the wall other than those caused solely by condensation The system can be used to overcome internal condensation 4 3 Existing buildings subject to national Building Regulations should have wall surfaces in accordance with section 14 of this Certificate 4 4 New buildings subject to national Building Regulations should be constructed in accordance with the 53 elevant recommendations of e BS EN 1996 2 2006 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 80003 2001 4 5 Other new buildings not subject to any of the previous requirements should also be built in accordance with BS EN 1996 2 2006 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 Certificate 4 8 It is recommended that external plumbing 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 4 9 New buildings should be of sound masonry dense or nofines concrete construction 4 10 It is essential that the system is installed and maintained in accordance with
32. tain 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 duty which may exist at the date of issue or reissue of this Certificate nor is conformity with such information to be taken as satisfying the requirements of the 1974 Act or of any statutory common law or other duty of care British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Watford email mail bba star co uk Herts WD25 9BA website www bbacerts co uk Page 18 of 18
33. the board type used see section 6 Table 1 Properties of insulation boards Characteristic unit EPS EPS EEPS EEPS Square edge Tongue and groove Square edge Size mm 1000 x 500 1000 x 485 1000 x 500 Thickness mm 40 to 400 60 to 400 AO to 300 Density kgm 15 15 15 Compressive strength kN m 100 70 70 at 10 deformation Tensile strength kN m 2 100 100 100 1 In increments of 10 mm 2 Minimum value given 3 Minimum value perpendicular to face Page 3 of 18 Mechanical fixings e Knauf Marmorit Warm Wall Mechanical fixings anchors of adequate length to suit the substrate and insulation Reinforcement thickness approved and supplied by the Certificate holder and selected from Ejotherm STU NT U NTK U Termoz 8 U 8 UZ KS 8 Koelner K18M Basecoat Knauf Marmori Knauf Marmori Knaut Marmorit a polymer coa Knauf Marmorit Reinforcement Primers Finishing coats Knauf Marm Knauf Marmorit Knauf Marmorit dry mortar with lime cementitious binder requiring the addition of 25 to 30 water Each available in two grain mm and 3 mm sizes 2 Knaut Marmorit to 30 water Knauf Marmorit 30 water Knaut Marmorit sizes Knauf Marmorit mm 1 Available in three grain sizes 2 mm 3 mm and 5 mm t SMZ00 SM700 PRO see Adhesive t SM300 see Adhesive Reinforcement a onemetre wide mesh of
34. the conditions set out in this Certificate 5 Practicability of installation The system should only be installed by specialised contractors who have successfully undergone training and registration by the Certificate holder Note The BBA operates a UKAS Accredited Approved Installers 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 insulation manufacturer s declared thermal conductivity Xp value of 0 038 W m K for EPS board thickness range 60 to 400 mm and 0 032 W m K for EEPS board thickness range 40 to 300 mn 53m tixings and the insulating value of the substrate masonry and its internal finish U values for typical design U values calculated in accordance with section 6 1 are given in Table 3 ee The U value of a wall will depend on the selected insulation type and thickness the number and type of Page 6 of 18 Table 3 Insulation thickness mm required to achieve design UBI values given in national Building Regulations U value 215 mm brickwork 0 56 W mr K 1 200 mm brickwork 1 75 W mr K1 Werr K2 EPS EEPS EPS EEPS 0 19 200 150 210 160 0 25 140 110 50 120 0 26 140 110 50 110 0 28 120 100 30 110 0 30 110 90 20 100 0 35 100 80 00
35. tion Design and Management Regulations 2007 Construction Design and Management Regulations Northern Ireland 2007 Information in this Certificate may assist the client CDM co ordinator designer and contractors to address their obligations under these Regulations See section 3 Delivery and site handling 3 2 and 3 3 of this Certificate Additional Information NHBC Standards 2013 NHBC accepts the use of the Knauf Marmorit Warm Wall EPS External Wall Insulation System provided it is installed used and maintained in accordance with this Certificate in relation to NHBC Standards Chapter 6 9 Curtain walling and cladding Technical Specification 1 Description 1 1 The Knauf Marmorit Warm Wall EPS External Wall Insulation System see Figure 1 comprises Adhesive e Knauf Marmorit SM7O00 SM700 PRO a mixture of grey or white Portland cement supplied as a powder to which clean water is added Can be used as both the base render and adhesive e Knauf Marmorit SM300 hydrated lime cement limestone quartz sand special bonding agents and water repellents content supplied as a powder to which clean water is added Can be used as both the base render and adhesive Insulation e Knauf Marmorit Warm Wall EPS and EEPS insulation boards expanded polystyrene boards in accordance with BS EN 13163 2012 supplied as square edge or tongue and groove with the characteristics given in Table 1 The thermal performance depends on
36. umber of this Agr ment Certificate by either referring to the BBA website or contacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Watford email mail bba star co uk Herts VWWD25 9BA website www bbacerts co uk Page 1 of 18 Regulations In the opinion of the BBA the Knauf Marmorit Warm Wall EPS External Wall Insulation System if installed used and maintained in accordance with this Certificate will 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 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 contribute to satisfying this Requirement See sections 8 1 8 2 8 4 8 6 and 8 7 of this Certificate Resistance to moisture The system provides a degree of protection against rain ingress See sections 4 4 and 10 1 of this Certificate Resistance to moisture The system contributes to minimising
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