Timloc Building Products TIMLOC CAVITY CLOSERS
Contents
1. BS EN 1996 1 1 2005 Eurocode 6 Design of masonry structures General rules for reinforced and unreintorced masonry siructures NA to BS EN 1996 1 1 2005 UK National Annex to Eurocode 6 Design of masonry structures General rules for reinforced and unreintorced masonry structures BS EN 1996 1 2 2005 Eurocode 6 Design of masonry structures General rules Structural fire design NA to BS EN 1996 1 2 2005 UK National Annex to Eurocode 6 Design of masonry structures General rules Structural fire design 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 1996 3 2006 Eurocode 6 Design of masonry structures Simplified calculation methods for unreintorced masonry structures NA to BS EN 1996 3 2006 UK National Annex to Eurocode 6 Design of masonry structures Simplified calculation methods for unreinforced masonry structures Page 8 of 9 BRE Information Paper IP 1 06 Assessing the effects of thermal bridging at junctions and around openings BRE Information Paper IP 8 08 Determining the minimum thermal resistance of cavity closers Conditions of Certification 16 Conditions 16 1 This Certificate e relates only to the product system that is name2. in terms of wind loading resistance the products can be used in all areas of the UK The products must not be used to support loads from the masonry see section 8 Properties in relation to fire the installed Thermo loc Standard Plus X Plus C and Super Plus Cavity Closers will not contribute significantly to the growth of a fire These products do not constitute a cavity barrier The installed Thermo loc FR tire rated Cavity Closer constitutes a cavity barrier in masonry cavity walls only see section 9 Durability the products protected within the cavity will continue to function for the normal expected lite of a building see section 11 The BBA has awarded this Certificate to the company named above for the products described herein These products have been assessed by the BBA as being fit for their intended use provided they are installed used and maintained as set out in this Certificate Ee Mf On behalf of the British Board of Agr ment Date of Second issue 18 April 2013 John Albon Head of Approvals Greg Cooper Originally certificated on 23 January 2008 Energy and Ventilation Chief Executive The BBA is a UKAS accredited certification body Number 113 The schedule of the current scope of accreditation for product certification is available in pdf format via the UKAS link on the BBA website at www bbacerts co uk Readers are advised to check the validity and latest issue number of this Agr ment Certif
3. Ne sealant A oe YW A ASSEN 30 mm Note An additional cavity barrier is required in Scotland and Northern Ireland Figure 3 Former insulation omitted for clarity 2 Manufacture 2 The cavity closer unplasticised polwinyl chloride PVC U profiles are produced by conventional extrusion techniques The insulation is fitted in the tactory 2 2 As part of the assessment and ongoing surveillance of product quality the BBA has e agreed with the manufacturer the quality control procedures and product testing to be undertaken e assessed and agreed the quality control operated over batches of incoming materials e monitored the production process and verified that it is in accordance with the documented process e evaluated the process for management of nonconformities e checked that equipment has been properly tested and calibrated e undertaken to carry out the above measures on a regular basis through a surveillance process to verify that the specifications and quality control operated by the manufacturer are being maintained 3 Delivery and site handling 3 1 The products are delivered in packs of one type Each pack carries an instruction leatlet bearing the market
4. 1996 1 1 2005 BS EN 1996 1 2 2005 BS EN 1996 2 2006 and BS EN 1996 3 2006 and the relevant National Annexes e the national Building Regulations England and Wales Approved Document Al 2 Section 1C Scotland Mandatory Standard 1 1021 Small Buildings Guide 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet D 4 5 Proprietary window and door frame fixings which may be recommended by the manufacturer are outside the scope of this Certificate 5 Practicability of installation The products are designed to be installed by a competent general builder or a contractor experienced with these types of products 6 Hygrothermal behaviour f 6 1 The products can contribute fo maintaining continuity of thermal insulation at jambs and sills in wall 53 d openings The path of minimum thermal resistance through the closers calculated to BRE Information Paper IP 8 08 Determining the minimum thermal resistance of cavity closers is at least 0 45 m K VV when used in jambs and sills with the window door frame setback 30 mm or more into the wall cavity see Figure 2 Example junction details shown in Figure 2 are acceptable and the corresponding heat loss rates i values in BRE Information Paper IP 1 06 Assessing the eftects of thermal bridging at junctions and around openings Table 3 may be used in carbon emission calculations in Scotland and Northern Ireland Attention
5. open cavity after building work is complete The compressible nature of the exposed insulation material is used to create a triction fit in the cavity Alternatively the insulation can be trimmed to fit using a sharp knife 13 5 Joining offcut sections should be kept to a minimum and not carried out to sill sections Sections are joined by mitre cutting the closer profile to allow the downward cut to run away from the jamb Insulation should be extended trom the lower closer profile to allow this to slot into the upper profile to maintain a rigid section All overlaps must be tape sealed 14 Tests Tests were carried out to determine e shrinkage on heating of PVC U sections e resistance of PVC U sections to cracking in acetone 15 Investigations 15 1 An assessment was made of e heat loss and condensation risk in accordance with the Accredited Construction Details version 1 0 England and Wales and Northern Ireland and the Accredited Construction Details Scotland e the practicability of the installation e weather resistance of the products when installed in accordance with the manufacturer s instructions e fire resistance and structural stability of walls incorporating the products e durability of the components used in the construction of the products 15 2 the manufacturing process was evaluated including the methods for quality control and details were obtained of the quality and composition of the materials used Bibliography
6. INSPECTION Timloc Building Products BE A TESTING CERTIFICATION Rawcliffe Road TECHNICAL APPROVALS FOR CONSTRUCTION Goole East Yorkshire DN14 6UQ Agr ment Certificate Tel 01405 765567 Fax 01405 720479 e mail technical timloc co uk 07 4501 website www timloc co uk Product Sheet 1 TIMLOC CAVITY CLOSERS TIMLOC THERMO LOC CAVITY CLOSERS This Agr ment Certificate Product Sheet relates to Timloc Thermo loc Cavity Closers for use as a cavity closer and to form an opening in masonry cavity walls during construction 1 Hereinafter referred to as Certificate CERTIFICATION INCLUDES e factors relating to compliance with Building Regulations where applicable e factors relating to additional non regulatory information where applicable independently verified technical specification assessment criteria and technical investigations design considerations installation guidance regular surveillance of production formal three yearly review KEY FACTORS ASSESSED Hygrothermal behaviour the products meet and exceed the minimum thermal resistance path of 0 45 m K VW as required by the Accredited Construction Details see section 6 Weather resistance the products are effective as a damp proot barrier and when used in a suitable wall construction will resist the passage of water into the interior of the building in flush and check reveal installations see section 7 Structural stability
7. ambs of window and door openings in 7 2 n standard usage in a flush jamb detail with a minimum window setback of 30 mm the closers are suitable for use in exposure zones sheltered 2 moderate and 3 severe as depicted in the map contained in section 3 1 of Page 6 of 9 BRE Report BR 262 2002 Thermal insulation avoiding risks In this application the closer may also be considered suitable for use in other locations where a conventional return brick block closer detail with dpc has been found to provide adequate resistance to the penetration of wind driven rain 7 3 In a check reveal construction see Figure 2 the modified Thermo loc see section 4 1 closer is suitable for use in exposure zones up to and including zone 4 very severe as depicted in the map contained in section 3 1 of BRE Report BR 262 2002 which covers all exposure zones in the United Kingdom 7 4 The closers are not recommended for use in cavities fully tilled with insulation as the flange nibs cannot be guaranteed to prevent moisture tracking trom outer fo inner leat in such applications 8 Structural stability 8 1 The products are non loadbearing and must not be used to support loads from the masonry Lintels are required above window and door openings 8 2 The products will not have an adverse effect on the structural stability of brickwork or blockwork walls constructed in the conventional manner in accordance with normal good practice as detined i
8. are should be taken to achieve clean flat square ends 12 6 When installed in conjunction with the cavity closer the back edge of the window door frames should be setback at least 30 mm behind the inner face of the outer leat to meet thermal requirements see section 6 1 whilst ensuring that the front edge of the frame remains over the outer leat 12 7 The junctions between the wall and the front and back of the window door frame must be effectively sealed 12 8 The PVC U flange can provide an adequate key for traditional plaster tinishes However in locations where the plaster may be subjected to repeated impact eg at door reveals from door slamming it is recommended that wet plaster be reinforced by hessian scrim or preferably replaced by dry lining 13 Procedure 13 1 The products can be used in both first and second fix applications 13 2 The cavity closer should be cut into required lengths allowing the jamb section to overlap the sill section and to butt the underside ot the lintel 13 3 In first tix applications the cavity closer should be nailed to the jamb sill of the door or window frame nails are outside the scope of this Certiticate and the whole assembly built in as work proceeds Alternatively the closer can be built in sections using the brick ties as the work proceeds or pre built to act as an opening former by using brace and corner forms 13 4 For second fix applications the cavity closer should be pushed into the
9. ate Standard 6 1 b Carbon dioxide emissions Standard ow Building insulation envelope Comment The products can contribute to minimising heat loss at jambs and sills with reference to clauses 6 2 3 6 2 42 and 6 2 5 2 See section 6 1 of this Certificate Standard 7 a b Statement of sustainability Comment The products can contribute to meeting 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 products can contribute to a construction meeting a higher level of sustainability as defined in this Standard with reference to clauses 7 1 42 Aspects 1012 and 201 7 1 62 Aspects 12 and 20 and 7 1 72 Aspect 1012 See section 6 of this Certificate Regulation 12 Building standards applicable to conversions Comment All comments given for these products under Regulation 9 Standards 1 to 6 also apply to this Regulation with reference to clause 0 12 1 l2 and Schedule 6121 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 4 The Building Regulations Northern Ireland 2012 5 Regulation 23 Fitness of materials and workmanship Comment The products are acceptable See section 11 and the Installation part of this Certificate Regulation 28 b Resistance to moisture and weather Comment The products have adequate resistance to the ingress of rain and win
10. chloride PVC U cavity closers available in the range listed in Table 1 They comprise a polystyrene phenolic foam or rock fibre insulation core with a single extruded white PVC U section fitted on one side for cavity widths up to 100 mm Thermo oc Plus X is also available with two smaller PVC U sections fitted on both sides for cavity widths above 100 mm The PVC U sections incorporate fixing channels Thermo loc Standard and Thermo oc Plus X are available with grooves within the insulation to act as cutting guides for cavity widths up to 100 mm See Figure 1 Table 1 Timloc Thermo loc Cavity Closers Insulation Declared thermal conductivity No0790 VV KT Thermo loc Standard Expanded polystyrene 0 038 Thermo loc Plus X Extruded polystyrene 0 034 Thermo loc Plus C Expanded polystyrene 0 038 Thermo loc Super Plus Phenolic foam 0 027 estimated Thermo loc FR fired rated version Rock fibre mineral wool 0 034 1 2 The profiles are available in 2 1 m 2 4 m and 3 0 m lengths and in widths to suit cavities of 50 mm to 300 mm Page 3 of 9 Figure 1 Closer components for cavity widths up to 100 mm Thermo loc Standard Plus X Plus C Super Plus and FR Thermo loc Standard and Plus X Ao 30 5 Jae for cavity widths over 100 mm Thermo loc Plus X corner cleat tie all dimensions in mm Page 4 of 9 Figure 2 Jamb and sill detail sealant eee l gt sealant y
11. d 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 Certiticate 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 16 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 Certiticate 16 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 16 4 The BBA has used due skill care and diligence in preparing this Certiticate but no warranty is provided 16 5 In issuing this Certificate the BBA is not responsible and is excluded trom any liability to any company firm organisation or person for any matters arising directly or indirectly
12. d driven spray and so can contribute towards a wall satisfying this Regulation See sections 7 1 to 7 3 of this Certificate Page 2 of 9 Regulation 29 Condensation Comment The products will not constitute a significant condensation risk and so can contribute towards a wall satisfying this Regulation See section 6 3 of this Certificate Regulation 35 4 Internal fire spread Structure Comment The Thermo loc FR Cavity Closer can contribute to satistying this Regulation See section 9 6 of this Certificate Regulation 39 a b Conservation measures Regulation 40 2 Target carbon dioxide emission rate Comment The products can contribute to minimising heat loss at jambs and sills See section 6 1 of this Certificate Construction Design and Management Regulations 2007 Construction Design and Management Regulations Northern Ireland 2007 In the opinion of the BBA there is no information in this Certificate which relates to the obligations of the client CDM co ordinator designer and contractors under these Regulations Additional Information NHBC Standards 2013 NHBC accepts the use of Timloc Thermo loc Cavity Closers provided they are installed used and maintained in accordance with this Certificate in relation to NHBC Standards Chapter 6 1 External masonry walls Technical Specification 1 Description 1 1 Timloc Thermoloc Cavity Closers see Table 1 and Figure 1 are insulated unplasticised polyvinyl
13. 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 16 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 Certiticate 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 Satety 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
14. icate by either referring to the BBA website or contacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane tax 01923 665301 Watford email mail bba star co uk Herts VVD25 OBA website www bbacerts co uk Page 1 of 9 Regulations In the opinion of the BBA Timloc Thermo loc Cavity Closers if installed used and maintained in accordance with this Certificate will meet or contribute to meeting the relevant requirements of the following Building Regulations the presence of a UK map indicates that the subject is related to the Building Regulations in the region or regions of the UK depicted 4 The Building Regulations 2010 England and Wales as amended 5 Requirement B3 4 Internal fire spread structure Comment The Thermo loc FR product can contribute to meeting this Requirement See section 9 6 of this Certificate Requirement C2 b Resistance to moisture Comment The products have adequate resistance to the ingress of rain and wind driven spray and so can contribute towards a wall satisfying this Requirement See sections 7 1 to 7 3 of this Certificate Requirement C2 c Resistance to moisture Comment The products will not constitute a significant condensation risk and so can contribute towards a wall satistying this Requirement See sections 6 2 and 6 3 of this Certiticate Requirement L1 a i Conservation of fuel and power Comment The products can contribute to minimising heat los
15. ing company s name and the BBA identitication mark incorporating the number of this Certificate 3 2 The packs should be stored flat away from direct sunlight and excessive heat and supported along their length to prevent distortion or damage The products should be protected from vehicular and pedestrian tratftic Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on Timloc Thermo loc Cavity Closers Page 5 of 9 4 Use 4 1 Timloc Thermoloc Cavity Closers are suitable for use in masonry walls with nominal cavity widths in the range of 50 mm to 300 mm and with window and door frames made trom timber PVC U aluminium or steel The products can be used as a template to form an opening around which a wall can be constructed and to establish the cavity width during construction 4 2 The closers are intended for use in a flush jamb construction with the window door frames set back 30 mm With the small flange removed at the factory the closer may also be used in a check reveal application 4 3 The products provide a damp proot barrier between the inner and outer leaves at the point of closure act as a cavity closer without forming a thermal bridge and avoid the need for cutting bricks and blocks 4 4 Masonry walls into which the cavity closers are incorporated must be constructed in accordance with one or more of the following technical specifications e BS EN
16. ly with respect to the effect of fire penetrating into or out of the cavity providing a minimum of 30 minutes fire resistance with respect to both integrity and insulation for cavity closers up to 100 mm wide 9 7 The use of the products does not preclude the need to provide suitable tire protection to steel lintels where this is necessary to satisfy the Building Regulations 10 Maintenance To ensure the maximum weathertightness the silicone seal between window or door frames and masonry must be checked regularly and repairs or renewal carried out promptly 11 Durability AL products are durable when installed in accordance with this Certificate and will not suffer significant degradation since they are protected within the cavity The products will continue to tunction for the normal expected lite of a building 12 General 12 1 Installation of Timloc Thermoloc Cavity Closers must be carried out in accordance with the manufacturer s installation instructions 12 2 A cavity barrier may be required see section 9 2 12 3 Reference should be made to typical installation details shown in Figure 2 when following the installation details given in section 13 The windows in this Figure are shown for information only and do not form part of this assessment 12 4 When installing the closer the exposed insulation should always be positioned against the inner leaf see Figure 2 Page 7 of 9 12 5 In cutting the products to length c
17. ment tel 01923 665300 Bucknalls Lane tax 01923 665301 Watford email mail bba star co uk Herts VVD25 OBA website www bbacerts co uk Page 9 of 9
18. must be given to the correct setback in order to ensure compliance with these requirements Detailed guidance on limiting heat loss and 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 tor new build Scotland Accredited Construction Details Scotland Northern Ireland Accredited Construction Details version 1 0 F local surface condensation 6 3 Under normal domestic conditions the level of interstitial condensation associated with these products will 53 A be low and the risk of any resultant damage minimal 6 4 Door trames installed with proprietary fixings which cannot be setback into the wall cavity by 30 mm may require additional thermal insulation for example insulated dry lining to minimise excessive heat loss and the risk of excessive surface condensation 7 Jambs and sills incorporating these products in accordance with section 6 1 will adequately limit the risk of 6 5 The junctions between the wall and the front and back of the window door frame must be effectively sealed 7 Weather resistance masonry constructions where a brick block closer and dpc detail would normally be used The products are also effective as a horizontal dpc at the sill or threshold 4 The products are effective as a vertical damp proof barrier at j
19. n the Standards listed in section 4 4 of this Certificate Use of the products does not obviate the need for conventional wall ties around the openings 8 3 Door and window frames should be fixed to the masonry by conventional means in addition to any fixings to the closer 9 Properties in relation to fire Thermo loc Standard Plus X Plus C and Super Plus 9 1 The installed products will not contribute significantly to the growth of a fire 9 2 The products do not constitute a cavity barrier against the penetration of smoke and flame in the context of the Building Regulations 9 3 The use of the products is not prevented in England and Wales where generally cavity barriers are not required around openings in masonry wall construction 9 4 In Scotland and Northern Ireland the products are only suitable for use in conjunction with a cavity barrier meeting the performance requirements detined in Scotland Mandatory Standard 2 4 clause 2 4 1012 and Annex 2 B or 2 D2 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet E Paragraph 4 38 9 5 The use of the products does not preclude the need to provide suitable fire protection to steel lintels where this is necessary fo satisfy the national Building Regulations Thermo loc FR fire rated s Provided that the closer fits tightly in the cavity it will act as a cavity barrier at the opening in masonry 71 amp cavity walls on
20. s at jambs and sills See sections 6 1 and 6 2 of this Certiticate Regulation 7 Materials and workmanship Comment The products are acceptable See section 11 and the Installation part of this Certificate Regulation 26 CO emission rates for new buildings Comment The products can contribute to minimising heat loss at jambs and sills See sections 6 1 and 6 2 of this Certiticate a The Building Scotland Regulations 2004 as amended 5 Regulation 8 1 Fitness and durability of materials and workmanship Comment The products can contribute to a construction satisfying this Regulation See section 11 and the Installation part of this Certiticate Regulation 9 Building standards applicable to construction Standard Al Cavities Comment Thermo loc FR can contribute to satisfying this Standard with reference to clause 2 4 1012 and Annex 2 B or 2 D 2 See section 9 6 of this Certificate Standard 310 Precipitation Comment The products have adequate resistance to the ingress of rain and wind driven spray and so can contribute towards a wall satisfying this Standard with reference to clauses 3 10 1012 and 3 10 3012 See sections 7 1 to 7 3 of this Certificate Standard cals Condensation Comment The products will not constitute a significant condensation risk and so can contribute towards a wall satisfying this Standard with reference to clauses 3 15 12 3 15 4012 and 3 15 5012 See sections 6 2 and 6 3 of this Certific
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