Spectus Cavity Closer System
Contents
1. silicone sealant flush reveal window fitted from inside silicone I I silicone sealant sealant f E T check reveal Page 7 of 16 Figure 5 Typical jamb with window detail SW D x te NI A LEN RS silicone sealant 8 silicone sealant EE i 30 mm NS TTT l f om Ld I S gt silicone sealant silicone sealant flush reveal flush reveal window fitted from inside window fitted from outside silicone sealant check reveal Note An additional cavity barrier is required in Scotland and Northern Ireland Page 8 of 16 2 Manufacture 2 1 The cavity closer unplasticised polyvinyl chloride PVC U profiles are produced by conventional extrusion techniques The insulation is fitted in the factory 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 calibrated2. 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 17 4 The BBA has used due skill care and diligence in preparing this Certificate but no warranty is provided 17 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 17 6 Any information relating to the manufa
3. e undertaken to carry out the above measures on a regular basis through a surveillance process to verify that the specifications and quality control operated by the manufacturer are being maintained 2 3 The management system of the manufacturer has been assessed and registered as meeting the requirements of BS EN ISO 9001 2008 by BSI Certificate FM 01034 3 Delivery and site handling 3 1 Assembled subtrames are labelled with system identification They are despatched along with the requisite number of ties any additional ancillary items and installation instructions 3 2 Assembled subframes are stacked vertically and delivered as individual items taking care to avoid distortion in transit The sub frames or profiles should be stored under cover in a clean area on edge in the case of subtrames and suitably supported to avoid distortion or damage The subtrames and profiles should be protected from vehicular and pedestrian traffic Particular attention must be paid to subframes with bonded insulation onto the flanges of the profiles Assessment and Technical Investigations The following is a summary of the assessment and technical investigations carried out on the Spectus Former Cavity Closer System 4 Use 4 1 The Spectus Former Cavity Closer System is suitable for use in masonry walls with nominal cavity widths in the range of 75 mm to 150 mm and with window and door frames made from PVC U timber aluminium or steel The Certifica
4. listed in section 4 4 of this Certificate Use of the system does not obviate the need for conventional wall ties around the openings 8 3 A vented window fitted correctly into a cavity frame using fixing lugs at the jambs sill and head or fixing screws if a head is used for flush reveal installations or fixing clips at the jambs and sill and conventional fixing lugs at the head or fixing clips if a vented head is used for check reveal installations will satisfactorily transfer to the structure wind loads likely to be encountered in the UK In terms of wind loading resistance the cavity frame can be used in all areas of the UK 8 4 Door frames for use with the cavity frame require additional proprietary fixings at the jambs and sill threshold to ensure that the frame remains firmly fixed when the door is slammed Head fixings may be required for larger doorsets Relevant installation procedures are described in the Spectus Former Manual 9 Properties in relation to fire 9 1 Th 9 2 Th e installed system will not contribute significantly to the growth of a fire e system does not constitute a cavity barrier against the penetration of smoke and flame in the context of the Building Regulations 9 3 Th around e use of the system is not prevented in England and Wales where generally cavity barriers are not required openings in masonry wall construction Page 11 of 16 9 4 In Scotland and Nort
5. of two fixings per member is required Figure 7 Typical position of fixing clip and glass packers S S S so s P sj P S HO En P oS S S S S S fixing clip P glass packer H screw fixing Page 13 of 16 14 15 The window is offered up to the subframe from the inside or outside positioning it squarely in the aperture and clipping into place by applying even pressure to position the window back against the sub frame stop when using F102 or F752 profiles for windows installed from outside and F103 F753 F104 or F754 profiles for windows installed from inside or ensuring that the outer frame overlaps the cavity by a minimum of 30 mm when using F101 or F751 A screwfixing should be used adjacent to the position of the fixing clip at opening lights in accordance with the Spectus Former Manual Where a vented head section is not fitted the head member of the window is secured using lugs or screw fixings positioned not less than 150 mm from the comers and at centres not exceeding 600 mm Finishing 14 16 For windows installed from the outside a foam backing strip is applied all around the window door externally and an effective sealant is applied all around the perimeter of the window door internally prior to applying internal finishes 14 17 For windows installed from the inside an effective sealant is applied all around
6. the window door all around the perimeter of the window door internally prior to applying internal finishes 14 18 In locations where the plaster may be subject 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 14 19 Finishing trims are fitted after completion of the window installation where required 14 20 The window is weatherproofed externally using a suitable low modulus silicone sealant Technical Investigations 15 Tests 15 1 Tests were carried out on PVC U extrusions to determine e resistance to impact at low temperature e shrinkage on heating e gelation on heating induction time of dehydrochlorination 15 2 Tests were carried out on a combined subframe and PVC U window installed in a test rig to determine e air permeability e watertighiness e effect of cyclic wind loads to 1250 Pa e effect of temperature variation 5 C to 55 C e safety test wind loading using increased pressure of 2000 Pa and reduced pressure of 3000 Pall 1 The test was performed at reduced temperature to ensure that the contraction of the window under such conditions would not render the system unsafe 15 3 Tests were carried out on the profiles fitted with stuckon insulation to assess bond strength 16 Investigations 16 1 An assessment was made of e heat loss and condensation risk in accordance with the Accr
7. this Regulation See section 7 of this Certificate Condensation The system will not constitute a significant condensation risk and so can contribute towards the wall satistying this Regulation See section 6 3 of this Certificate Conservation measures Target carbon dioxide emission rate The system can contribute to minimising heat loss at jambs and sills See sections 6 1 and 6 3 of this Certiticate Page 2 of 16 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 2014 NHBC accepts the use of the Spectus Former Cavity Closer System provided it is installed used and maintained in accordance with this Certificate in relation to NHBC Standards Chapter 6 1 External masonry walls subject to the requirements of these Standards Technical Specification 1 Description 1 1 The Spectus Former Cavity Closer System is an insulated brown unplasticised polyvinyl chloride PVC U cavity closer and window or door subframe used to form an opening in masonry cavity walls during construction It is made from extruded profiles fitted with insulation EPS declared thermal conductivity p 0 038 W m K The profiles are formed into a U shape t
8. AA APPROVAL Epwin Group Ltd INSPECTION Window Systems Division CERTIFICATION Park 6 TECHNICAL APPROVALS FOR CONSTRUCTION elfor a ao Fax 01952 283350 pate nent Certificate el ax email contacting spectus co uk 14 5090 website www epwin co uk Product Sheet 1 EPWIN CAVITY CLOSER SYSTEMS SPECTUS FORMER CAVITY CLOSER SYSTEM This Agr ment Certificate Product Sheet relates to the Spectus Former Cavity Closer System for use as a cavity closer and to form an opening in masonry cavity walls It can also provide ventilation via the vented head section 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 investigation design considerations installation guidance regular surveillance of production formal three yearly review KEY FACTORS ASSESSED Hygrothermal behaviour the cavity closers meet and exceed the minimum thermal resistance path of 0 45 m2 K VV as required by the Accredited Construction Details version 1 0 Default u values psi in BRE Information Paper IP 1 06 may therefore be used for jamb and sill junctions in SAP or SBEM calculations see section 6 Water resistance the system is effective as a damp proof
9. Former Manual 4 7 The maximum subframe cavity closer size is 2420 mm wide by 2420 mm high maximum perimeter 8060 mm for windows and for doors Doors require additional proprietary fixings which are outside the scope of this Certificate Page 9 of 16 5 Practicability of installation The system is designed to be installed by a competent general builder or a contractor experienced with this type of system 6 Hygrothermal behaviour FR 6 1 The cavity closer can contribute to maintaining continuity of thermal insulation at jambs and sills in wal openings The path of minimum therm al resistance through the product calculated to BRE Information Paper IP 8 08 is at least 0 45 m2 K VV when used in jambs and sills with the window door frame set back 30 mm Example junction details shown in Figures 4 and 5 are acceptable For Accredited Construction Details the corresponding w values psi in BRE Information Paper IP 1 06 Table 3 may be used in carbon emission calculations in Scotland and Northern Ireland Attention must be these requirements Detailed guidance on limiting heat loss and air infiltration can be found in England and Wales Approved Documents to Pa Construction Details version 1 0 See also SAP 2009 Appendix K and the iSBEM User Manual for new build Scotland Accredited Construction Details Scotla Northern Ireland Accredited Construction Detail f 6 2 Jambs and sills incorporating the syste
10. 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 in terms of wind loading resistance the system can be used in all areas of the UK The system must not be used to support loads from masonry see section 8 Properties in relation to fire the installed system will not contribute significantly to the growth of a fire The system does not constitute a cavity barrier see section 9 Durability the system protected within the cavity will continue to function for the normal expected life of a building visible components will have an expected life in excess of 35 years see section 1 2 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 LOM l ie ae Date of First issue 9 May 2014 John Albon Head of Approvals Claire Curtis Thomas Energy and Ventilation Chief Executive The BBA is a UKAS accredited certification body Number 113 The schedule of the current scope of accreditation for product certification is available in pdf format via the UKAS link on the BBA website at www bbacerts co uk Readers are advised to check the validity and
11. built up by one level 4 5 Ties are inserted into the channel of the sub frame jambs rotated through 90 and built into the mortar bed joints These ties should be fitted after the first brick course and then at every three brick intervals 225 mm centres The ties should be inserted alternately tying the subframe into both inner and outer courses ensuring that the subframe is tight against the outer brick see Figure 5 A minimum of three ties per vertical member is required 4 6 When additional insulation is fitted to achieve extended cavity widths an overlap of at least 10 mm per side with the brickwork blockwork must be ensured 4 7 When the masonry reaches head level the bracing tube and any bracing support if used are removed and a lintel with associated dpc is fitted across the masonry just clear of the top of subframe Where the vented head is used the subframe is tied to the building structure with fixing lugs The number of fixing lugs required depends on the width of the opening The wall construction is continued to complete the aperture 14 8 In all installations the top brick course should be arranged to ensure that when bedded in the lintel does not exert a load on the window or door frame sub frame Page 12 of 16 14 9 The subframe is cleaned to ensure that it is free from mortar The brickwork must be allowed to set before attempting to fit the window door 14 10 The fitting of windows or doo
12. ctions 6 1 and 6 2 of this Certiticate Materials and workmanship The system is acceptable See section 12 and the Installation part of this Certificate CO emission rates for new buildings Fabric energy efficiency rates for new dwellings applicable to England only The system can contribute to minimising heat loss at jambs and sills See sections 6 1 and 6 2 of this Certificate ty The Building Scotland Regulations 2004 as amended an Regulation Comment Regulation Standard Comment Standard Comment Standard Standard Comment Standard Comment Regulation Comment 8 1 6 1 b 7 1la b 12 Durability workmanship and fitness of materials The system can contribute to a construction satisfying this Regulation See section 12 and the Installation part of this Certificate Building standards applicable to construction Precipitation The system has adequate resistance to the ingress of rain and wind driven spray and so can contribute towards the wall satisfying this Standard with reference to clauses 3 10 1012 and 3 10 3021 See section 7 of this Certificate Condensation The system will not constitute a significant condensation risk and so can contribute towards the wall satisfying this Standard with reference to clauses 3 15 10 3 15 4023 and 3 15 5021 See sections 6 2 and 6 3 of this Certificate Carbon dioxide emissions Building insulation envelope The system can con
13. cture 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 e mail mail bba star co uk Herts VVD25 9BA website www bbacerts co uk Page 16 of 16
14. eck reveal F033 vented head FM751 corner joint N N FM005 corner bracing F102F 100 mm flush reveal outside window fit F104F 100 mm check revea amp EPS for 75 mm closer EPS for 100 mm closer FM101 corner joint Page 5 of 16 rmer subframe fabrication Figure 3 Typical examples of extended cavity closer profiles 19 mm x 19 mm EPS 90 mm cavity 34 mm x 19 mm EPS 30 mm cavity gt 19 mm x 19 mm EPS 113 mm cavity gt 19 mm x 19 mm EPS 34 mm x 19 mm EPS 150 mm cavity Figure 4 Typical head with window detail silicone sealant silicone y sealant flush reveal window fitted from outside SS silicone gt sealant ko silicone sealant check reveal nu silicone sealant
15. edited Construction Details version 1 0 and the Accredited Construction Details Scotland e weather resistance of the system e the practicability of the installation e fire resistance and structural stability of walls incorporating the frame acceptor e durability of the components used in the construction of the system 16 2 The manufacturing process was evaluated including methods for quality control and details were obtained of the quality and composition of the materials used Page 14 of 16 Bibliography BS EN 1996 1 1 2005 Eurocode 6 Design of masonry structures General rules for reinforced and unreinforced masonry structures NA to BS EN 1996 1 1 2005 UK National Annex to Eurocode 6 Design of masonry structures General rules for reinforced and unreinforced 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 unrein
16. emplate with welded or mechanically joined using corner joints corners at the sill or threshold and a temporary bracing tube fixed at the head approximately 200 mm from the top and corner bracings at the sill threshold The head and corner bracings must be removed prior to the installation of the window door frames Alternatively a vented head profile is mechanically joined to form the head section see Figure 2 For closer sub frames over 1500 mm an additional horizontal brace is fixed to prevent distortion in accordance with the rules described in the Spectus Former Manual 1 2 The cavity frame components and accessories are listed in Table 1 and shown in Figure 1 1 3 Insulation blocks made from EPS declared thermal conductivity Xp 0 038 W m K can be bonded to cavity closer profiles to extend the range of cavity widths using double sided adhesive tape or hot melt process as detailed in the Spectus Former Manual see Figure 3 1 4 The jamb sill and vented head if used profiles are cut to size Slots are routed in the vented head to suit the proprietary ventilator to be used The sill and jamb sections are welded or if mechanically joined the corner joints are fixed to the sill and the jamb sections using 3 9 mm by 19 mm seltdrilling self tapping screws and silicone sealant is applied to the comer joint The vented head is located between the jambs and the jamb sections are screw fixed onto it using 5 mm by 30 mm screws if fi
17. forced 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 BS EN ISO 9001 2008 Quality management systems Requirements BRE Information Paper IP 1 06 Assessing the effects of thermal bridging at junctions and around opening BRE Information Paper IP 8 08 Determining the minimum thermal resistance of cavity closers BRE Report BR 262 2002 Thermal insulation avoiding risks Page 15 of 16 Conditions of Certification 17 Conditions 17 1 This Certificate e relates only to the product system that is named and described on the front page e js 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 17 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 17 3 This Certificate will remain valid for an unlimited period provided that the product system and its manufacture and or fabrication
18. hern Ireland the system is only suitable for use in conjunction with a cavity barrier meeting the performance requirements defined in Scotland Mandatory Standard 2 4 clause 2 4 1012 and Annex 2 B or 2 D 2 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic Northern Ireland Technical Booklet E paragraph 3 37 9 5 The use of the system does not preclude the need to provide suitable fire protection to steel lintels where this is necessary to satisfy the Building Regulations 10 Security against intrusion Removal of a window from the cavity frame from outside is extremely difficult as the shape of the outer frame prevents access to the locating clips If required supplementary through fixing of the window frame is possible Door frames secured by lugs or through tixings around the perimeter are outside the scope of this Certificate 11 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 12 Durability The system is durable when installed in accordance with this Certificate and will not suffer significant FR degradation when protected within the cavity The system will continue to function for the normal expected life of a building Visible components will have an expected life in excess of 35 years 13 General 3 1 Installation of the Spectus Former Cavity Cl
19. it 00 mm flush reveal inside window fit 75 mm check revea 00 mm check revea head for flush revea head for outside fit head for inside fit 20 mm x 63 5 mm EPS insulation for 75 mm box 20 mm x 88 5 mm EPS insulation for 100 mm box 19 mm x 19 mm EPS insulation for extending cavity closer width 34 mm x 19 mm EPS insulation for extending cavity closer width head or securing head bracing tube or mechanically joining cavity closer sub frame 75 mm box or mechanically joining cavity closer sub frame 100 mm box itted to windows for securing window outer frame to cavity closer subframe or strengthening subframe corners subframe tie or fixing corner cleats bracing connector and corner bracing or fixing vented head to cavity closer jambs through the wing or fixing vented head to cavity closer jambs through the body ixing clip fixing screws or attaching insulation outside the cavity closer box or attaching insulation outside the cavity closer box 1 Not shown in Figure 1 Page 4 of 16 Figure Components F751F 75 mm flush reveal F753F 75 mm flush reveal inside window fit TT h F031 vented head FM050 connector F101F 100 mm flush reveal F103F 100 mm flush reveal inside window fit ra FO32 vented head F050 bracing tube a 900340 FM001 fixing clip tie F752F 75 mm flush reveal outside window fit F754F 75 mm ch
20. latest issue number of this Agr ment Certificate by either referring to the BBA website or contacting the BBA direct British Board of Agr ment tel 01923 665300 Bucknalls Lane fax 01923 665301 Watford e mail mail bba star co uk Herts WVD25 BA website www bbacerts co uk Page 1 of 16 Regulations In the opinion of the BBA the Spectus Former Cavity Closer 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 4a The Building Regulations 2010 England and Wales as amended 5 Requirement Comment Requirement Comment Requirement Comment Regulation Comment Regulation Regulation Comment C2 b C2 c L1 a i 26 26A Resistance to moisture The system has adequate resistance to the ingress of rain and wind driven spray and so can contribute towards the wall satistying this Requirement See section 7 of this Certificate Resistance to moisture The system will not constitute a significant condensation risk and so can contribute towards the wall satistying this Requirement See sections 6 2 and 6 3 of this Certificate Conservation of fuel and power The system can contribute to minimising heat loss at jambs and sills See se
21. m s surface con 47 6 3 Under norm Ao and the risk of any 6 4 Door frames instal condensation densation given to the correct setback in order to ensure compliance with rt Land for new thermal elements to existing buildings Accredited nd s version 1 0 in accordance with section 6 1 will adequately limit the risk of al domestic conditions the level of interstitial condensation associated with the system will be resultant damage minimal ed with proprietary fixings which cannot be set back into the wall cavity by 30 mm may require additional thermal insulation for example dry lining to minimise excessive heat loss and the risk of excessive surface 6 5 The junctions between the wall and the front and back of the window door frame must be effectively sealed 7 Water resistance constructions where a brick block closer and damp proof course dpc detail would normally be used The i The system is effective as a vertical damp proof barrier at jambs of window and door openings in masonry system is also effective as a horizontal damp proot barrier at the sill or threshold 7 2 Installations with a flus 5 and 6 are suitable for use in exposure zones in Section 3 1 of BRE Report BR 262 2002 The conventional return brick block closer detail with d of wind driven rain h in line wall opening and a minimum setback of 30 mm see section 6 1 and Figures 4 sheltered and 2 mode
22. oser System must be carried out in accordance with the Spectus Former Manual 3 2 A cavity barrier may be required see section 9 2 of this Certificate 3 3 Reference should be made to the typical installation details shown in Figures 4 5 and 6 when reading the installation details given in section 14 of this Certificate The windows in these Figures are shown for information only and do not form part of this assessment 3 4 At the build in stage it must be ensured that the subframe remains plumb level square and with parallel sides 14 Procedure 4 1 The assembled subframe including bracing tube or vented head is ready for building into the construction of cavity walls using traditional building methods 4 2 The cavity wall is built to the sill level ensuring that the course work is level and flat and that all excess mortar is removed 4 3 The subframe is positioned in the cavity ensuring that it is facing the correct way so that the inner surface of the window frame is set in at least 30 mm from the inner surface of the outer leaf and temporary timber supports are attached to the closer if required The closer frame is aligned with a spirit level and the timber supports are secured so that they are rigid and keep the frame square and plumb The course work is built up by one course and butted to one side of the subframe 4 4 The position of the subframe is checked and the course work on the opposite side of the subframe is
23. rate as depicted in the map contained subframe may also be considered for use in other areas where a pc has been found to provide adequate resistance to the penetration 7 3 The system may also be used to construct a check reveal see Figures 4 5 and 6 In this construction in which the frame s positioned in a rebate behind the oute to and including zone 4 very severe as depicted r leaf of the jamb the system is suitable for use in exposure Zones up in the map contained in section 3 1 of BRE Report BR 262 2002 which covers all exposure zones in the United Kingdom Page 10 of 16 Figure 6 Typical sill with window detail silicone sealant silicone sealant flush reveal flush reveal window fitted from outside window fitted from inside silicone sealant silicone sealant check reveal Note An additional cavity barrier is required in Scotland and Northern Ireland 8 Structural stability 8 1 Th window or door openings 8 2 Th e system is nonloadbearing and must not be used to support loads from the masonry Lintels are required above e system 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 defined in the Standards
24. rs to the subframe must be carried out in accordance with the Spectus Former Manual Window preparation and fitting 4 11 The correct window is selected to suit the s 4 12 Fixing lugs are twisted into the outer frame fixed onto the building structure Wi Window installation from inside or outside using fi ubtrame All protective wrapping is removed xing lugs jambs sill and head section see Figure 5 150 mm to 250 mm from each corner and at centres not exceeding 600 mm No fixing should be closer than 150 mm or further than 250 mm to the centre line of mullions or transoms A minimum of two fixings per member is required 4 13 The windows are offered up to the subframe from the inside or outside of the building and the fixing lugs are ndow installation from inside or outside using fixing clips 4 14 Fixing clips are screw ixed to the inside for windows installed from outside or the outside for windows installed from inside of the outer frame jambs sill and head section if sub frame includes a vented head section using stainless steel screws 3 9 mm by 19 mm selfdrilling selHtapping see Figures 4 5 and 6 25 mm from each corner and at centres not exceeding 600 mm Fixing clips should also be fitted adjacent to mullions or transoms For fixing clips fitted centrally on fixed light outer frames glass packers should be positioned adjacent to the fixing clip and opposite as shown in Figure 7 A minimum
25. te holder can advise on the suitability of outer frame profiles 4 2 The system 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 3 The system provides a damp proof barrier acts as a cavity closer without forming a thermal bridge and avoids the need for cutting bricks and blocks The window door is fitted after completion of the masonry It can also be used to form a checked reveal where required and to fit the window after completion of the masonry as is conventional practice in Scotland and Northern Ireland 4 4 Masonry walls into which cavity closers are incorporated must be constructed in accordance with one or more of the following technical specifications e BS EN 1996 1 1 2005 BS EN 1996 1 2 2005 BS EN 1996 2 2006 and BS EN 1996 3 2006 and their respective National Annexes e the National Building Regulations England and Wales Approved Document Al 2 section 1C Scotland Mandatory Standard 1 121 Small Buildings Guide 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 3 Northern Ireland Technical Booklet D 4 5 Windows and doors are fitted into the subframe from the outside or inside of the building 4 6 Subtrames are manufactured to suit the exact brickwork opening A 5 mm clearance per side is allowed between the subframe and window or door in accordance with the Spectus
26. tribute to minimising heat loss at jambs and sills with reference to clauses 6 2 3 6 2 Alll2 and 6 2 52 See section 6 1 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 system can contribute to a construction meeting a higher level of sustainability as defined in this Standard with reference to clauses 7 1 4 Aspects 102 and 20 7 1 6012 Aspects 1012 and 20 and 7 1 7012 Aspect 10121 See section 6 1 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 12 102 and Schedule 6012 1 Technical Handbook Domestic 2 Technical Handbook Non Domestic 4 The Building Regulations Northern Ireland 2012 5 Regulation Comment Regulation Comment Regulation Comment Regulation Regulation Comment 23 28 29 39 a i 40 2 Fitness of materials and workmanship The system is acceptable See section 12 and the Installation part of this Certificate Resistance to moisture and weather The system has adequate resistance to the ingress of rain and wind driven spray and so can contribute towards the wall satisfying
27. xed through the wing or 5 mm by 75 mm screws if fixed through the body See Figure 2 1 5 The main PVC U profile incorporates a box section to fit into the recess of the wall cavity 1 6 The cavity closer profiles are produced from reground PVC U material 1 7 Polypropylene ties manufactured by standard injection moulding techniques are used to build the cavity closer frame into the surrounding mortar joints see Figures 1 and 5 Page 3 of 16 Table 1 Spectus Former list of components Manufacturer s designation Components Application F751F oO FO50 FMO5O FM75 FM10 900340 FMOOS FMOO 3 9x 19mm 5 x 30 mm 5x75 mm 3 9 x 19 mm 3M 9098 Techbond 232 cavity closer subframe cavity closer subframe cavity closer subframe cavity closer subframe cavity closer subframe cavity closer subframe cavity closer subframe cavity closer sub frame vented head vented head vented head insulation block insulation block insulation block insulation block bracing tube connector corner joint corner joint fixing clip corner bracing tie stainless steel self drilling selftapping screws stainless steel screws stainless steel screws stainless steel screws double sided tape hot melt adhesive 75 mm flush reveal 00 mm flush revea 75 mm flush reveal outside window fit 00 mm flush reveal outside window fit 75 mm flush reveal inside window f
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