The Zonal Method User's Guide
Contents
1. e Heritage listed or historic buildings requiring restoration using traditional skills e For buildings on sites located in wind zones where the wind speed is greater than 25 m s i e Zone 3 The fixing specification for the roof covering of any excluded site or building must be determined by calculation in accordance with the methods described in BS 5534 and BS 6399 2 For example in some extreme cases special nails or clips may be required 33 This Users Guide is a joint publication prepared by the technical committees of the Concrete Tile Manufacturers Association Clay Roof Tile Council and the National Federation of Roofing Contractors Copyright reserved CONCRETE TILE MANUFACTURERS ASSOCIATION Concrete Tile Manufacturers Association Affiliated to the British Precast Concrete Federation Limited 60 CHARLES STREET LEICESTER LE1 1FB Tel 0116 253 6161 Fax 0116 251 4568 E mail briprecast britishprecast org Web www britishprecast org our members affiliated members php Rc M 6 o aA a N lt o Clay Roof Tile Council FEDERATION HOUSE STATION ROAD STOKE ON TRENT ST4 28A Tel 01782 744631 Fax 01782 744102 E mail ceramfed co uk Web www clayroof co uk y THE NATIONAL FEDERATION OF ROOFING CONTRACTORS LIMITED COLLECTIVE MARK National Federation of Roofing Contractors 24 WEYMOUTH STREET LONDON W1G 7LX Tel 020 7436 0387 Fax 020 7637 5215 E mail in2. ese August 2006 Ke Sandtoft b The Zonal Method User s Guide Roof Tile Fixing Specification i FEDERATION OF ROOFING CON ORS sas 2 CONCRETE TILE MANUFACTURERS ASSOCIATION O un Foreword In the UK roof designers and contractors must currently determine the appropriate level of fixings for roofing tiles and fittings by calculation The methodology is complex and in practice is generally carried out by the roof tile manufacturer The Zonal Method was developed by an industry wide group comprising representatives from NFRC CTMA CRTC as well as support from BRE NBS NHBC and Zurich It marks a long awaited simple and common approach to determining roof tile fixings Instead of having to carry out calculations for every project predicted maximum wind loadings have been pre calculated and placed in a common set of tables Each manufacturer has then compared the resistance to wind uplift of their tiles and fixings ie nails amp clips against these wind loadings to determine the appropriate level of fixings to produce Zonal fixing tables for each tile The benefit of this system is that it offers a safe and robust fixing specification without the need for further calculation With just some very basic information about the roof and site location the designer or contractor can use the Zonal Method tables to look up a suitable fixing specification for a project This sa
3. Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 28 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD 20 20 without counterbattens Site altitude 0 100 Headap 75mm 10 J Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 29 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD 20 20 with counterbattens Site altitude 0 100 m Headap mm 100mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m
4. 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 32 List of Exclusions Appendix C The Zonal Method is not applicable in the following circumstances e For buildings where the site altitude is greater than 300m e For buildings on sites where the maximum gradient of the land within 200 m of the building is greater than 10 e Where the building is within 6 kilometres of an airport and is plus or minus 10 degrees each side of the runway centre line measured from the touchdown point e Where the ridge height of the building is greater than 15 m e Where the roof pitch is greater than 54 for single lap tiles and 59 for double lap tiles e For buildings where the roof substructure does not provide a shielding factor of 1 as defined in BS 5534 e g the roof does not have an underlay or sub roof system such as liner trays or sandwich panels e For tiles or slates not made of concrete or clay
5. Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 30 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Neo Pantile without counterbattens Site altitude 0 100 m Headlap 75mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 31 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Neo Pantile with counterbattens Site altitude 0 100 m Headlap 75mm Pitch Zone 1 5m 10m
6. 100 m Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 18 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Lindum Tiles without counterbattens Site altitude 0 100 m Headlap 75 100mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headap 75mm 100mm 9 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 ECT to BS 6399 m BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Win
7. 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 11 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Calderdale Slates with counterbattens Site altitude 0 100 Headap 75mm 10 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 12 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Dual Calderdale
8. 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 16 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Bold Roll without counterbattens Site altitude 0 100 m Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 78mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 17 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Bold Roll with counterbattens Site altitude 0
9. Loading for buildings Code of practice for wind loads British Standards Institution 1997 Further Guidance Practical guidance on the application of single lap and double lap tiling can also be obtained from CITB CS Trainer Resource Package for Operatives in the Construction Industry Manuals Construction Industry Training Board 2002 036 1 Roof Slating and Tiling Common Materials and Methods CTP 036 2 Roof Slating and Tiling Single lap Variable Gauge Interlocking Tiles 036 3 Roof Slating and Tiling Double lap Variable Gauge Plain Tiles CTP 036 5 Roof Slating and Tiling Single lap Fixed Gauge Interlocking and mitred tiles UK Map of Three Wind Speed Zone Appendix A For the Channel Islands assume a wind speed of 24 m s i e Zone 2 If the building lies on the junction of 2 wind speed zones use the higher wind speed zone when determining the fixing specification in accordance with the Zonal Method Map reproduced by kind permission of BRE Ltd 8 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Double Pantiles without counterbattens Site altitude 0 100 Headlap 75 mm Pitch Below 35 35 44 45 553 Below 35 35 449 45 559 Headlap Pitch Headlap Pitch Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Ke
10. all cases to comply with BS 5534 and BS 8000 63 hip ridge or ridges should be mechanically fixed for a distance of not less than two consecutive units or a distance of 900 mm whichever is the greater from the face of rigid masonry supports such as gables dormers valley junctions abutments and separating walls where there is a risk that differential movement may take place All verge tiles or verge components should be clipped single lap tiles or twice nailed double lap plain tiles or secured by using a proprietary dry verge system All methods used for the mechanical fixing of hip ridges ridges and verges should meet the requirements of BS 5534 and BS 8000 6 including proprietary dry fix systems which should be fixed strictly in accordance with the selected manufacturer s instructions Roof penetrations and openings ie roof windows chimneys Consideration should be given to the location of any penetrations and openings in the roof to facilitate the optimum tile module so as to avoid small cut tiles All tiles adjacent to roof penetrations or openings should be mechanically fixed References 1 BS 5534 Code of practice for slating and tiling including shingles British Standards Institution 2003 2 Zonal Method Technical Reference CRTC CTMA 2006 3 BS 8000 6 Workmanship on building sites Code of practice for slating and tiling of roofs and claddings British Standards Institution 1990 4 BS 6399 2
11. 4 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmnmoou 21 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Standard Pattern Tiles with counterbattens Site altitude 0 100 m Headlap 75 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headap 75 100mm O O Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 ECT to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmnmoou 22 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Shire Pantiles without counterbattens Si
12. FICATIONS ZONAL METHOD Olympus without counterbattens Site altitude 0 100 m Headap mm mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 78mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 25 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Olympus with counterbattens Site altitude 0 100 m Headlap 7mm Om Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tile
13. d uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmnmoou 19 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Lindum Tiles with counterbattens Site altitude 0 100 m Headlap 75 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headap 75 100mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 ECT to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmnmoou 20 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Standard Pattern Tiles without counterbattens Site altitude 0 100 m Headlap 75 100mm OO Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headap 75mm 100mm 9 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 ECT to BS 6399 and BS 553
14. ed 1 2 Within the appropriate manufacturer s table identify the sub table relevant to the site s altitude e g less than 100 m 101 to 200 m or 201 to 300m Within the altitude sub table identify the wind speed zone appropriate for the site location Zone I 2 This can be obtained from the map given in Appendix A Identify the building height to ridge bm 10m 15m For single lap tiles identify the headlap column 75 or 100mm Where the headlap falls between 75 mm and 100 mm use the 75 mm fixing specification for the designated lap For single lap tiles identify the roof pitch column less than 35 35 44 or 45 54 For plain tiles identify the roof pitch column e g 35 59 The fixing specification can then be obtained e g A to F Hips Hip Ridges Ridges Verges Valley Junctions Penetrations and Openings Hips bonnets arris and purpose made fittings for plain tiles Hips should be installed in accordance with BS 5534 BS 8000 63 and the manufacturer s instructions Individual bonnet arris and purpose made hip tiles to be used in each course with double lap plain tiles should be mechanically fixed with nails and head bedded to prevent uplift Hip Ridges Ridges Verges and Valley junctions Ridges should be installed in accordance with BS 5534 BS 8000 63 and the manufacturer s instructions The mechanical fixing of all hip ridges and ridges is recommended But in
15. ed Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 14 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Double Roman without counterbattens Site altitude 0 100 m Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 78mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 15 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Double Roman with counterbattens Site altitude 0 100 m Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt
16. es only fourth course D Each tile clipped Each tile twice nailed every third course E Each tile once nailed and Each tile twice nailed every clipped second course F Each tile twice nailed and Each tile twice nailed clipped Note 1 The manufacturers shall base their Zonal fixing specifications on the Zonal Method Technical Reference developed by the CTMA and the CTRC The manufacturers shall ensure that the specifications are appropriate for their products Note 2 The manufacturer may also specify the use of improved nails e g ring shank nails for fixing tiles Where these are required the Zonal Method fixing specification letter will be marked with an asterisk e g C Note 3 The Zonal Method calculations are based on the use of substructures that provide a shielding factor of 1 e g flexible underlays and rigid underlays including board sarking liner trays and sandwich panels Note 4 The manufacturers may define additional fixing specifications to those in the table and assign fixing specification letters from G onwards In some cases the manufacturer may specify a proprietary system and this will be marked PS and the manufacturer should be contacted for the details of the fixing method 3 How to use the Manufacturers Tile Fixing Tables Check that the table to be used is the current version from the manufacturer of the roof tile that is to be fitted The following sequence should be us
17. f roof tile to be used The altitude of the site less than 100m 100 to 200 m over 200 m but less than 300m The wind speed zone in which the building lies 1 2 or 3 This can be obtained from the map given in Appendix A The height of the building less than or equal to 5m 10m or 15m The pitch of the roof e g for single lap tiles less than 35 35 44 or 45 54 for double lap 35 59 Note The tile manufacturer should be consulted to determine the minimum pitch for the tile selected Roofs with long rafters may be subject to additional pitch restrictions The headlap requirement for single lap tiles 75mm or 100mm If counter battens are to be used 2 Manufacturers Fixing Tables For each tile type two sets of Tile Fixing Specification tables will be available from the manufacturer Tiles fixed to battens only and Tiles fixed to battens over counter battens Both will require that all perimeter tiles are fixed including tiles adjacent to valleys and where appropriate verge specifications will be provided The tile fixing specification will be in accordance with the following format Zonal Fixing Single lap tiles Double lap tiles specification A No fixings required except Not Applicable perimeters B Each tile once nailed right Each tile twice nailed every hand nail hole flat tiles fifth course Each tile twice nailed flat Each tile twice nailed every til
18. fo 9 nfrc co uk Web www nfrc co uk CTMA CRTC and NFRC March 2006 34 General enquiries Tel 0870 145 2020 Sandtoft Roof Tiles Ltd Belton Road Doncaster DN8 55 E Mail infogsandtoft co uk www sandtoft com Technical enquiries Tel 0870 145 2021 Fax 0870 145 2019 E Mail technical sandtoft co uk www sandtoft com CAMPAIGNING FOR NSSPlus Tile colours shown in this brochure are as accurate as the printing process will allow Community registered design application No 000165840 Product samples are available upon request UK patent pending application No 0407835 8 At Sandtoft we are continually innovating and improving our product range European patent pending application No 05252150 7 We reserve the right to change product specifications without notice Please contact our Customer Support Team for the latest information or visit www sandtoft com
19. s Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 26 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Cassius without counterbattens Site altitude 0 100 m Headlap 75 mm TOOM Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 to BS 6399 a BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail mmoou 27 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Cassius with counterbattens Site altitude 0 100 Headlap 75mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m
20. te altitude 0 100 m Headlap 7mm mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 23 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Shire Pantiles with counterbattens Site altitude 0 100 m Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Improved Nail gt 24 SANDTOFT ROOF TILE FIXING SPECI
21. toft s tables are given in Appendix B Scope Included in the scope of this guide are roofs covered with single lap and double lap clay and concrete roof tiles including ridges hips verges and valley junctions for exclusions see Appendix C Designers specifiers and users are advised to check that the manufacturers fixing tables refer to tiles fittings and accessories that are manufactured to the appropriate British or European Standard or supported by recognised UKAS accredited third party assessment Where reference is made to the fixing specifications of proprietary products and to manufacturers recommendations the specifier should obtain evidence that these fixing specifications and recommendations have been proven by relevant experience or relevant test method data based on the conditions and methods of use in the UK climate to be fit for purpose In cases where the fixing specifications concerning the use of proprietary products varies from those contained in BS 5534 it is essential that the manufacturer s recommendations give the designer and user adequate assurance of performance It is advisable that the designer specifier or user seeks assurances at the design stage of a project that such recommendations are appropriate for the intended application How to use the Zonal Method 1 Information required To use the Zonal Method the following information is required 1 2 The manufacturers name and model o
22. ves time in not having to submit an enquiry to Sandtoft Technical Support for each project In this Guide Sandtoft outlines the scope of the Zonal Method and assists the reader through the process of using the Zonal tables as well as providing recommendations for hips ridges verges valleys penetrations and openings For projects or tile types that fall outside the scope of the Zona Method or where it is necessary to apply individual parameters in accordance with BS 5534 Sandtoft Technical Support can still provide individual site specific fixing recommendations using the full calculation method John Mercer MIoR Technical Manager Sandtoft Roof Tiles Introduction The Zonal Method is a method for obtaining a fixing specification for roof tiles and is a simplification of the calculations defined in BS 5534 Code of practice for slating and tiling including shingles The assumptions made in the simplification process may produce a specification with more or stronger fixings than that required if the full BS 5534 calculation is undertaken Manufacturers of roof tiles will provide fixing tables for their products in accordance with the Zonal Method With some basic information about the design of roof tile to be used the building and the site topography the manufacturers fixing tables will provide a fixing specification without the need for complex calculations All manufacturers fixing tables follow the same layout Sand
23. without counterbattens Site altitude 0 100 m Headap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x nmoou 13 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Dual Calderdale with counterbattens Site altitude 0 100 m Headlap 7mm mm Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 calculation to BS 6399 and BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipp
24. y No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail xXx nmoou SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Double Pantiles with counterbattens Site altitude 0 100 m Headlap 75 mm 100 Pitch Zone 1 IJ 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headap 75mm 100mm 9 O O Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 Headlap Pitch Zone 1 5m 10m 15m Zone 2 5m 10m 15m Zone 3 For Zone 3 ETE to BS 6399 m BS 5534 is required Site altitude gt 300 m Calculation to BS 6399 and BS 5534 is required Zonal fixing specifications Key No fixings required Each tile once nailed right hand hole on flat tiles Each tile twice nailed flat tiles only Each tile clipped Each tile once nailed and clipped Each tile twice nailed and clipped Wind uplift force exceeds tile resistance contact Sandtoft s Technical Team on 0870 1452021 Improved Nail x mmoou 10 SANDTOFT ROOF TILE FIXING SPECIFICATIONS ZONAL METHOD Calderdale Slates without counterbattens Site altitude 0 100 Headap 75mm 10 Pitch Zone 1 5m 10m 15m Zone 2 5m 10m
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