If you have pre-customised this work section using the "questions and answers" provided as part of the downloading process, it may be necessary to amend some clauses to suit the final project-specific version.
The section must still be checked and customised to suit the project being specified, by removing any other irrelevant details and adding project-specific details and selections.
This section relates to the supply and fixing of Taranaki Steelformers profiled roofing complete with accessories.
Modify or extend the above description to suit the project being specified.
This section does not include for rainwater gutters, spouting and pipework. Some flashing work is also often covered elsewhere.
Refer to 4161 UNDERLAYS, FOIL AND DPC for underlays, foils and DPC.
Refer to ~ for ~.
Include cross references to other sections where these contain related work, such as:
Refer to 4161DP for DUPONT TYVEK UNDERLAY SYSTEM for vented roofing underlay.
Refer to 4241TS STEELFORMERS PROFILED METAL CLADDING for cladding.
Refer to 4312 PROFILED PLASTIC ROOFING for natural lighting sheeting.
Refer to 4337 PLYWOOD ROOFING & DECKING SUBSTRATE for roofing substrate.
Refer to 7411 RAINWATER SPOUTING SYSTEMS for rainwater disposal.
Refer general section 1232 INTERPRETATION & DEFINITIONS for abbreviations and definitions used throughout the specification.
The following abbreviations apply specifically to this section:
BMT | Base metal thickness |
NZMRM | New Zealand Metal Roofing Manufacturers Association Inc |
MS | Modified silicone |
EPDM | Ethylene propylene diene-monomer (M class) rubber |
GRP | Glass fibre reinforced polyester |
PVC | Polyvinyl chloride |
PVDF | Polyvinylidene Fluoride |
Refer to the general section 1233 REFERENCED DOCUMENTS.
The following documents are specifically referred to in this section:
NZBC E2/AS1 | External Moisture |
NZBC G12/AS1 | Water Supplies |
AS/NZS 1170.2:2011 | Structural design actions - Wind actions |
AS/NZS 1365 | Tolerances for flat-rolled steel products |
AS 1397 | Continuous hot-dip metallic coated steel sheet and strip - Coatings of zinc and zinc alloyed with aluminium and magnesium |
Design and installation of sheet roof and wall cladding - Plastic | |
Plywood - structural | |
Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements | |
AS 3566 | Self-drilling screws for the building and construction industries |
Plastic roof and wall cladding materials - General requirements | |
Timber-framed buildings | |
ISO 9223 | Corrosion of metals and alloys - Corrosivity of atmosphere - Classification determination and estimation |
NZ Metal Roof and Wall Cladding Code of Practice |
Documents listed above and cited in the clauses that follow are part of this specification. However, this specification takes precedence in the event of it being at variance with the cited document.
Delete from the DOCUMENTS clause any document not cited. List any additional cited documents.
The following are related documents and if referred to in the work section need to be added to the list of DOCUMENTS.
BRANZ BU 519 | Fasteners selection |
BRANZ BU 563 | Building on exposed sites |
BRANZ BU 567 | E2/AS1 Flashing Requirements |
BRANZ BU 595 | Factory-coated metal claddings |
BRANZ Good Practice Guide: Long-run Metal Roofing
Note: AS/NZS 1170.2:2011 is cited in NZBC B1/VM1 Structure at the time of writing. The new version AS/NZS 1170.2:2021 is not yet cited. Amend the section by removing the year reference if using the 2021 version and amend the section accordingly.
Manufacturer and supplier documents relating to this part of the work:
Taranaki Steelformers product literature including:
Manufacturer/supplier contact details.
Company: | Taranaki Steelformers |
Web: | |
Email: | NPOffice@steelformers.co.nz |
Telephone: | 0800 476 634 |
It is important to ensure that all personnel on site have access to accurate, up to date information on the many products, materials and equipment used on a project. In most cases individual products are not used in isolation, but form part of a building process. Also a particular manufacturer and/or supplier requirements for handling, storage, preparation, installation, finishing and protection of their product can vary from what might be considered the norm. Access to information can help overcome this potential problem.
Refer to SELECTIONS for a guide to typical warranty details for different systems. They are a guide only, as project details may vary the warranty periods, check with Taranaki Steelformers to confirm warranties and recommended systems.
Provide a material manufacturer/supplier warranty:
15 years | for failure of coating adhesion |
15 years | for weatherproofing by material penetration |
Form: | Roofing manufacturers standard warranty form |
For project specific Warranty requirements contact Taranaki Steelformers.
Check general section 1237 WARRANTIES for the date of commencement of warranties; which is normally practical completion of the contract. Refer to the chosen conditions of contract as it may also contain information on warranties/guarantees.
Warranty applications are made through Taranaki Steelformers and warranty periods and conditions, including environment, are assessed by New Zealand Steel or Pacific Coilcoaters.
For schools, warehouses and other commercial buildings please contact Taranaki Steelformers. Maximum warranty offered by New Zealand Steel on commercial buildings is 15 years.
See 4. SELECTIONS, Coating Systems for typical residential warranty periods, and amend clause to suit project.
Substitutions are not permitted to any specified system, or associated components and products.
Roof installers to be experienced, competent roofers familiar with Taranaki Steelformers products, and for Restricted Building Work to also be an LBP, or supervised by an LBP.
Carry out work with experienced, competent installers familiar with the products being used and preferably with appropriate qualifications such as the National Certificate in Metal Roofing and Cladding, and/or membership with the Roofing Association of New Zealand (RANZ).
The next two mutually exclusive clauses, are setting a standard of performance for design by the contractor to meet. Specifiers should therefore consider adding some means of confirming (say by testing or certification) that the performance criteria will be or have been met. Delete the clause which does not apply.
Design and use the fixings/fixing pattern appropriate for the wind design parameters and NZMRM CoP. Refer to Taranaki Steelformers Profile Factsheet for the selected profile. Allow for specific loadings at corners and the periphery of the roof, where localised pressure factors apply. Fixing pattern to also take into account fixing method and purlin spacings.
Note; periphery areas, of any roof plane, generally have more fixings and reduced purlin spacings (non-NZS 3604 specific design), compared to the centre of the roof.
Building wind zone | ~ / ~ kPa ULS (refer to NZS 3604, table 5.4) |
Refer to Taranaki Steelformers for "Wind Load Span Design Charts" for load parameters.
Examples of design parameters include Wind Zone and NZS 3604.
Low/0.65kPa: | 32 m/s |
Medium/0.85kPa: | 37 m/s |
High/1.20kPa: | 44 m/s |
Very High/1.55kPa: | 50 m/s |
Extra High/1.82kPa: | 55 m/s |
Delete the clause if using DESIGN PARAMETERS - SPECIFIC DESIGN.
The design wind pressures are to AS/NZS 1170.2.
SLS | ~ kPa |
ULS | ~ kPa |
Refer to Taranaki Steelformers for "Wind Load Span Design Charts" for load parameters.
Obtain information from the project structural engineer.
Note:
Delete the clause if using DESIGN PARAMETERS - NON SPECIFIC DESIGN.
Install roofing materials in accordance with the NZMRM CoP, and Taranaki Steelformers Profile Factsheet for the selected profile, to form a weather-tight performance for the completed roofing system, including all penetrations through the roof and junctions with walls and parapets.
Refer to later EXECUTION clause on co-operating with others on the installation of elements which penetrate or adjoin the roofing system; including walls and parapets, skylights, sundry elements fixed through the roofing surface, service pipework, etc.
Roofing for collecting potable water to NZBC G12/AS1.
Co-ordinate to ensure substrate and preparatory work is complete and other work programmed in the order required for access and completion of the roof. Ensure that all necessary members are positioned so that flashings can be fastened at both edges through the roof profile or cladding to the primary structure.
Select the product that suits the brief and use the PRODUCTS and EXECUTION clauses that follow to suit the product selected.
Formability steel sheet, Zincalume® G300 steel is manufactured from hot-dipped zinc/aluminium alloy-coated 0.55mm BMT steel with guaranteed minimum yield strength of 300MPa with good ductility. Suitable for roll forming to a minimum internal diameter of 1t.
To AS 1397, and AS/NZS 1365.
Refer to SELECTIONS.
Suitable for rainwater goods, gutters, and roofing.
Pre-coated options are Colorsteel® Endura™, or Colorsteel® Maxx™.
Formability steel sheet, Zincalume® G550 steel is manufactured from hot-dipped zinc/aluminium alloy-coated 0.55mm BMT steel with guaranteed minimum yield strength of 550MPa with limited ductility. Suitable for roll forming to a minimum internal diameter of 4t.
To AS 1397, and AS/NZS 1365.
Refer to SELECTIONS.
Suitable for roofing and roll-formed sections for structural applications.
Pre-coated options are Colorsteel® Endura™, or Colorsteel® Maxx™.
Manufactured from 0.9mm BMT aluminium coil, 5052 series, for roll forming roofing profiles and flashings.
To NZBC E2, and MRM Code of Practice.
Refer to SELECTIONS for coil width and Temper options.
Modify to suit project requirements.
5052 series is available in various Tempers - H32, H34, and H36.
Manufactured from 0.90mm BMT aluminium coil, for roll forming roofing profiles and flashings. 5005 or 5052 marine grade, H34 or H36 Temper respectively. Coated with ColorCote AlumiGard, to NZBC E2, AS/NZS 2728, and MRM Code of Practice.
Refer to SELECTIONS for coil width and metal Temper.
Modify to suit project requirements - e.g. 5005 or 5052 series base metal.
Suitable for roll forming roofing profiles and flashings.
Copper sheet 0.70mm BMT, Grade 122, to MRM Code of Practice, laid over substrate and vented underlay.
Refer to SELECTIONS.
Modify to suit project requirements. Also available in curved radii.
Copper grades 122, 110, and 102 are available. Grade 122 is most commonly used in construction.
Note - common sheet size is 2400mm x 1000mm for flashings and rainwater goods. For roofs, a 600mm wide coil for roll-formed goods.
Translucent GRP fibreglass sheeting to AS/NZS 4256.1.
Refer to 4312 PROFILED PLASTIC ROOFING.
Products include Alsynite Topglass, Topglass GC, Topglass GC SPF, Topglass GC Ultra-Safe, Topglass Cool, Topglass FR, and Ampelite Corri-Glas, WonderGlas GCP, Perma-Glas STD, Perma-Glas XL, Perma-Glas Ultra, Wonder-Glas S-996, Cool-lite IR.
Delete section reference as required. Plastic roofing can be added to this section, especially where a profile match is needed, or the plastic sheet quantity is small.
Translucent polycarbonate or PVC sheeting to AS/NZS 4256.1.
Refer to 4312 PROFILED PLASTIC ROOFING.
Polycarbonate products include Alsynite Laserlite 2000 or Ampelite Solasafe, SS40 Polycarbonate.PVC products include Ampelite Suncall (frosted), Sunclear (clear).
Delete section reference as required. Plastic roofing can be added to this section, especially where a profile match is needed, or the plastic sheet quantity is small.
Fixings and fasteners are to be compatible with all materials, the environment and meeting the requirements of the NZ Building Code. Installation is to be in accordance with NZBC E2/AS1 and/or the NZMRM CoP and Taranaki Steelformers Profile Factsheet.
For fixing patterns refer to Taranaki Steelformers Profile Factsheet for the selected profile.
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
To AS 3566. Screws appropriate to the roofing material and the supporting structure, as required by Taranaki Steelformers and with a Class 4 or 5 durability and not less than the material being fixed. Screws into timber to penetrate by minimum 30mm. Screw fasteners to be head stamped identifying the manufacturer and class. Refer to SELECTIONS.
For thermal movement refer to Taranaki Steelformers Profile Factsheet for the selected profile.
Prepare a separate clause specifying profiled washers and oversized holes as required by the roofing manufacturer and consider detailing a step in the roofing (check details with the roofing manufacturer).
Do not use stainless steel or monel (nickel-copper alloy) fasteners on ColorCote MagnaFlow and MagnaFlow X products.
Taranaki Steelformers proprietary fixing clips to suit material and selected Quattro cladding profile and to be fastened with a minimum of two fixings. Refer to SELECTIONS for fixings.
Delete this clause when clip fixings are not required. Clip fixings are required for Quattro 45mm Snapseam, Quattro 25mm Double Standing Seam, 25mm Nailstrip Snaplock and 25mm Snapseam cladding profiles.
Sealed aluminium, minimum diameter 4.0mm, for use with zinc coated, zinc/aluminium coated steel or aluminium roofing. Refer to Taranaki Steelformers for requirements.
Size depends on profile and project restraints. Check the roofing manufacturer requirements.
To AS 3566. Screws appropriate to the roofing material and the supporting structure, as required by roofing manufacturer and with a Class 4 or 5 durability and not less than the metal roofing. Screws into timber to penetrate by minimum 30mm. Screw fasteners to be head stamped identifying the manufacturer and class. Refer to SELECTIONS.
For thermal movement refer to manufacturers Factsheet for the selected profile. All plastic sheeting must have an enlarged fixing hole for provision of thermal movement, predrilled to specific diameters for 12# or 14# self drilling screws for both timber and steel purlins. See Selections.
Prepare a separate clause specifying load-spreadng profiled washers and oversized holes as required by the roofing manufacturer and NZMRM CoP.
Plywood to AS/NZS 2269.0, minimum12mm thickness, stress Grade F11, CD Grade, H3.2 with waterborne CCA treatment and kiln dried after treatment and be equilibrium moisture content (EMC) of 18% or less, when the cladding is installed.
Refer to 4337 PLYWOOD ROOFING & DECKING SUBSTRATE for details.
Delete this clause when plywood substrate not required. Plywood substrate is required for Quattro 45mm SnapSeam (Very High Wind Zone & over), Quattro 25mm Double Standing Seam, 25mm Nailstrip Snaplock and 25mm Snapseam cladding profiles.
CD - Construction ply, plugged and sanded on the upper face.
Avoid steel framing contact with H3.2 treated plywood, use vent mat to achieve ventilation requirements and to isolate contact.
Modify above clause with appropriate section reference if plywood substrate is specified elsewhere.
To E2/AS1, 4.0, Flashings.
Taranaki Steelformers manufacture customised flashings at the required length.
Formable grade 0.55mm BMT for galvanized, aluminium/zinc, aluminium/zinc/magnesium - coated and pre-painted steel, and 0.70 BMT or 0.90 BMT for aluminium (or 0.7mm for small aluminium flashings) to the same standards as the profiled sheets, notched where across profile or provided with a soft edge.
Revise the clause wording to suit the specified roofing.
NZBC E2/AS1 does allow aluminium flashings of 0.7mm, this is only recommended for small flashings.
To E2/AS1, 4.0, Flashings.
Supplied by the roofing manufacturer to match or to suit the roofing.
For flashings and capping use low tensile grade G 300 steel. If specifying aluminium/zinc-coated sheet use only compatible materials for soft edgings - soft pure aluminium 0.45mm thick, or Flashguard.
Generally to E2/AS1, 8.4.17 Roof penetrations (note; E2/AS1, Figure.54 Soaker flashing for pipe penetration, has an error, use as guide only).
EPDM proprietary pipe flashing laid on 45º bias to roofing, with over-flashing (soaker flashing) if required.
A boot flashing should be positioned so that it dams a roofing pan no more than 50%, if this cannot be avoided use an over-flashing back to the ridge and fix the boot flashing to that.
Refer to E2/AS1, table 17 for maximum penetration size and catchment area above penetration.
Refer to 4161 UNDERLAYS, FOIL AND DPC for wire netting and safety mesh.
PVC coated netting is recommended for Zone D and E exposure and other corrosive environments. Wire netting is normally only used in areas where there is a low risk of falling. It is required for pitches under 8° and some wide purlin spacings, to support underlay. Safety mesh is used in high studs and open spans, such as commercial, industrial and warehouse buildings, and particularly under plastic roofing.
Do not use galvanized wire netting as an underlay support with aluminium roofing.
Refer to 4161 UNDERLAYS, FOIL AND DPC for underlays, foils and DPC.
Refer to 4161DP for DUPONT TYVEK UNDERLAY SYSTEM for Dupont DuPont™ Tyvek® Metal, an integrated drainage mat providing a separate drainage layer between roof cladding and the roof underlay for use with Quattro 45mm Snapseam Roofing profile.
Dupont DuPont™ Tyvek® Metal or similar Steelformers approved product must be used with Quattro 45mm Snapseam profile in Very High Wind Zone & over or at Low/Medium/High Wind Zones if required. Also recommended for other Quattro roofing profiles.
Neutral curing MS polymer sealant as required by Taranaki Steelformers and used as directed.
Do not rely on sealants alone for joining. Mechanical fasteners (e.g.: rivets, self-tapping screws etc) to always be used as well.
Non-bituminous compressible, profiled foam strips to fit the sheet profile.
Sometimes used where overlaps with flashings etc, are compromised, such as when sheet ends cannot be turned up. Often used with plastic roofing. Care should be taken not to block, required ventilation and moisture run off from the underlay.
Refer to 1270 CONSTRUCTION for requirements relating to delivery, storage and handling of products.
Use this standard generic clause and if appropriate add additional special requirements.
Sheet lengths are custom run to order (where long sheets are used, consideration must be given to: special conditions for transportation of sheet lengths over 25m, site access for special lifting equipment and fixing technique to accommodate thermal expansion).
Upon delivery visually inspect sheets for damage and accept packs of undamaged roofing. Reject all damaged material. Store on a level firm base clear of the ground, with packs well ventilated and completely protected from weather and damage. Do not allow moisture to build up between sheets. If sheet packs become wet, fillet or cross stack to allow air circulation and drying between sheets.
Do not drag sheets across each other or other materials. Avoid distortion and contact with damaging substances, including cement. Long lengths of roofing to be lifted onto the roof using an approved load spreading beam. Protect edges and surface finishes from damage, keep under cover and remove as the product is being installed. Use soft, flat sole shoes when fixing and for all other work on the roof. Walk along the purlin line whenever possible.
Refer to 1250 TEMPORARY WORKS & SERVICES for protection requirements.
Refer to 1270 CONSTRUCTION for requirements relating to defective or damaged work, removal of protection and cleaning.
Use this standard generic clause and if appropriate add additional special requirements.
Inspect the roof framing and supporting structure to ensure that it is complete and fully braced ready for roofing and free from any misalignments or protrusions that could damage the roofing.
When continuous metal roofing runs along a long continuous timber member and is directly fixed to it, the timber moisture content to be 18% or less. For flashings in this situation (sometimes called transverse flashings) the framing moisture content to be maximum 16%, and preferably as low as 12%. Transverse flashings can be temporarily tacked in place and final fixing done when moisture content is acceptable.
Transverse flashing can be prone to buckling if there is excessive timber moisture movement.
Isolate dissimilar materials (metals and non-metals) in close proximity as necessary by painting the surfaces or fitting separator strips of compatible materials. Place isolators between metals and treated timber and cement based materials. Do not use lead sheet or copper in contact with or allow water run-off onto galvanized or aluminium/zinc coated steel.
The following execution clauses are written specifically to suit profiled aluminium/zinc/magnesium (combinations) coated steel. If using aluminium they will need re-evaluating. Aluminium roofing, even with an underlay separation, cannot be in direct contact with copper treated timber, black butyl rubber or steel purlins. Refer to NZMRM CoP.
Refer to 4711 THERMAL INSULATION for thermal insulation.
Refer to 4337 PLYWOOD ROOFING & DECKING SUBSTRATE for details.
Lay plywood backing substrate in accordance to manufacturer's requirements, ensuring all edges of the sheets are fully supported.
Delete this clause when plywood substrate not required. Plywood substrate is required for Quattro 45mm SnapSeam (Very High Wind Zone & over), Quattro 25mm Double Standing Seam, 25mm Nailstrip Snaplock and 25mm Snapseam cladding profiles.
Modify above clause with appropriate section reference if plywood substrate is specified elsewhere.
Refer to 4161 UNDERLAYS, FOIL AND DPC.
Ensure roof underlay has been installed over the plywood substrate to the underlay manufacturer's requirements and Taranaki Steelformers requirements. Make good any damage before or during fixing of cladding before fixing continues.
Delete this clause when plywood substrate not required. Plywood substrate is required for Quattro 45mm Snapseam (Very High Wind Zone & over), Quattro 25mm Double Standing Seam, 25mm Nailstrip Snaplock and 25mm Snapseam cladding profiles.
Refer to 4161DP for DUPONT TYVEK UNDERLAY SYSTEM for Dupont DuPont™ Tyvek® Metal underlay.
Ensure roof underlay has been installed over the plywood substrate to the underlay manufacturer's requirements and Taranaki Steelformers requirements. Make good any damage before or during fixing of cladding before fixing continues.
Dupont DuPont™ Tyvek® Metal or similar Steelformers approved product must be used with Quattro 45mm Snapseam profile in Very High Wind Zone & over or at Low/Medium/High Wind Zones if required. Also recommended for other Quattro roofing profiles.
Carefully set out with consideration of the position of side laps to take account of the prevailing wind and line of sight. Ensure all sheets are square and oversailing the gutter true to line. Check during fixing to eliminate creep or spread and string lines along purlin centres to keep fastenings in line.
End laps are not permitted, except where specifically detailed.
Fix for thermal movement to Taranaki Steelformers Factsheet for selected profile.
Install and fix in accordance with the NZMRM CoP recommendations, and to Taranaki Steelformers required fixing patterns and details for each area of the building roofing. Use only screws as required by Taranaki Steelformers. Paint colour-matched fixings and accessories before installation.
Install and fix in accordance with the manufacturers fixing instructions, to AS/NZS 1562.3, and the NZMRM CoP recommendations.
Note: Translucent sheeting requires special design and spacing of support members - see Taranaki Steelformers website for technical details including spanning, thermal expansion and fixing.
Use ink pen, chalk line or coloured pencil for marking roof sheets prior to cutting. Do not use lead pencil for marking Zincalume®, Colorsteel® and ColorCote®. Cut by shear only, using nibblers or hand snips. Remove all cutting and drilling debris from the roof.
Fix sheets in place using the fastening system required by Taranaki Steelformers for specified profiles, making due allowance for dynamic local wind pressures on the building and thermal movement in the sheet.
Form stop-ends at the upper end of sheets. Form downturns at the gutter line where the roof pitch is less than 8 degrees. Form using the required tools.
Flash roof to parapets, walls and penetrations to detail. Flashings to be installed on timber framing with a moisture content of less than 20%. Where no detail is provided flash to NZMRM CoP recommendations and Taranaki Steelformers and NZBC E2/AS1 requirements. Cut accurately and fix using sealant and rivets to detail and to Taranaki Steelformers requirements to form a weatherproof cover. For visible flashings, plan joints/junction to take account of the aesthetic requirements.
Select and use sealants only as recommended by Taranaki Steelformers. Apply sealant in two narrow beads transversely across flashing intersections, close to the two edges. Avoid exposing sealant on outside surfaces.
Flash all penetrations through the roof. Fit pipe flashings with a proprietary collar flashing, with other penetrations flashed as detailed and to provide a weathertight installation. Ensure that flashings are set to avoid any ponding of water.
Install ridging by fastening to the purlins through the leading edge of the roofing to the manufacturer requirements.
Refer to 1270 CONSTRUCTION for completion requirements and if required commissioning requirements.
Use this standard generic clause and if appropriate add additional special requirements.
Reference must be made to selected material suppliers literature for exact details of maintenance requirements. Maintenance and regular inspection schedules will be specified as a condition of the warranty.
Over time fading of coated products will occur making it necessary to over paint if aesthetic value to be retained. Contact Taranaki Steelformers for advice.
Revise the clause wording to suit the specified roofing.
For further details on selections go to www.steelformers.co.nz.
Substitutions are not permitted to the following, unless stated otherwise.
Selection of the correct grade of material and appropriate surface coating is imperative to ensure roofing profile will perform satisfactorily in the environment it is to be installed, and meets the requirements of the NZBC.
SELECTIONS is for providing details of the actual selections to be included in the contract works including model numbers, colours and other information necessary to ensure that the correct materials are supplied and installed.
ColorCote® is a registered trademark of Fletcher Steel Ltd. AlumiGard™, MagnaFlow™ and ZinaCore™ are trademarks of Fletcher Steel Ltd. Colorsteel®, Endura®, Maxx®, and Galvsteel® are registered trademarks of New Zealand Steel Limited. Zincalume® is a registered trademark of BlueScope Steel Limited.
Reference the coil and paint manufacturer literature before choosing an appropriate finish.
Project Exposure Zone B-C to NZS 3604, C 1-3 to ISO 9223.
Profile/location: | ~ |
Base material: | ~ |
Coating system: | ~ |
Coating colour: | ~ |
The following details are a guide only (typically domestic), as project details may vary the warranty periods, check with Taranaki Steelformers to confirm warranties and recommended system.
ROOFING BASE MATERIAL | COATING SYSTEM | COATING typical warranty | PERFORATION typical warranty |
Aluminium | None | NA | NA |
Zincalume® on steel (limitations apply) | None | NA | 15 years |
Zinc/Aluminium alloy on steel | Colorcote ZinaCore™ | 18 years | 30 years |
Zinc/Aluminium/Magnesium alloy on steel | Colorcote MagnaFlow™ | 18 years | 30 years |
Aluminium | Colorcote AlumiGard™ | 18 years | 30 years |
Zincalume® on steel | Colorsteel® Endura® | 18 years | 30 years |
Zincalume® on steel | Colorsteel® Maxx® | 18 years | 30 years |
Unfinished galvanised steel is not recommended and to only be considered in non-critical buildings in Cat 1 exposure zones. New Zealand Steel does not warrant Galvsteel® as a roofing product.
No warranty available on mill aluminium. Refer to Taranaki Steelformers for producer statement confirming grade, manufacture location, etc.
Note; Due to expansion, only light colours are recommended on long sheets. This varies with materials and profiles, refer to Taranaki Steelformers for details.
Project Exposure Zone D to NZS 3604, C 4 to ISO 9223.
Profile/location: | ~ |
Base material: | ~ |
Coating system: | ~ |
Coating colour: | ~ |
The following details are a guide only (typically domestic), as project details may vary the warranty periods, check with Taranaki Steelformers to confirm warranties and recommended system.
ROOFING BASE MATERIAL | COATING SYSTEM | COATING typical warranty | PERFORATION typical warranty |
Aluminium | None | NA | NA |
Aluminium | Colorcote AlumiGard™ | 15 years | 30 years |
Zinc/Aluminium/Magnesium alloy on steel | Colorcote MagnaFlow™ | 15 years | 25 years |
Zincalume® on steel | Colorsteel® Endura® | 15 years | 15 years |
Zincalume® on steel | Colorsteel® Maxx® | 15 years | 20 years |
No warranty available on mill aluminium. Refer to Taranaki Steelformers for producer statement confirming grade, manufacture location, etc.
Note - Due to expansion, only light colours are recommended on long sheets. This varies with materials and profiles, refer to Taranaki Steelformers for details.
Project Exposure Zone E to NZBC E2/AS1, C 5 (C5I & C5M) to ISO 9223.
Profile/location: | ~ |
Base material: | ~ |
Coating system: | ~ |
Coating colour: | ~ |
The following details are a guide only (typically domestic), as project details may vary the warranty periods, check with Taranaki Steelformers to confirm warranties and recommended system.
ROOFING BASE MATERIAL | COATING SYSTEM | COATING typical warranty | PERFORATION typical warranty |
Aluminium | None | NA | NA |
Aluminium | Colorcote AlumiGard™ | 15 years | 25 years |
Zinc/Aluminium/Magnesium alloy on steel | Colorcote MagnaFlow™ | 15 years** | 15 years** |
Zincalume® on steel | Colorsteel® Maxx® | 15 years | 15 years |
Note; Due to expansion, only light colours are recommended on long sheets. This varies with materials and profiles, refer to Taranaki Steelformers for details.
**A warranty on MagnaFlow™ in ISO CAT 5 is subject to prior approval by Pacific Coilcoaters.
No warranty available on mill aluminium. Refer to Taranaki Steelformers for producer statement confirming grade, manufacture location, etc.
Galvsteel® is not advised for any new roofing project. Contact Taranaki Steelformers Technical Manager to discuss your project and determine whether Galvsteel® is suitable for your application.
Location: | ~ |
Profile: | NC 710 |
Base metal type / BMT: | ~ |
Purlin material: | ~ |
Fixing: | ~ |
Options for coated Steel finish:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type | Sheet size |
Alsynite One (excluding Polycarbonate) | to suit NC 710 | to suit NC 710 |
Ampelite (excluding Polycarbonate) | to suit NC 710 | to suit NC 710 |
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
Note, for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) amend Class 4 fixings to Class 5.
FIXINGS FOR STEEL NC 710 ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 14- 10x75 T17 Timbertite* | Neoprene washer May require EPDM and load spreading washer# |
Steel up to 3mm | 12- 24x65 Steeltite S500* | Neoprene washer May require EPDM and load spreading washer# |
Steel 3 - 12mm | 12- 24x65 Steeltite S500* | Neoprene washer May require EPDM and load spreading washer# |
#Metal washer to be Zn/Al for MagnaFlow X
FIXINGS FOR ALUMINIUM NC 710 ROOFING - PREFINISHED OR PLAIN
PURLINS | FIXINGS | WASHERS |
Timber | 14- 11x73 Alutite aluminium type 17 hex head screws | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel up to 3mm | Grade 304 stainless steel Steeltite S500 12- 24x65 with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel 3 - 12mm | Grade 304 stainless steel Steeltite S500 12- 24x65 with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Refer to NZMRM CoP and consult with Taranaki Steelformers fastening supplier for further details.
Do not use galvanized or zinc coated screws (e.g. Class 3 or 4)
FIXINGS FOR TRANSLUCENT NC 710 ROOFING (excluding polycarbonate)
PURLINS | FIXINGS | WASHERS |
Timber or Steel | Fastener as for main roofing. 12# or 14# self drilling screws All fastener holes pre-drilled over-size (for GRP): Sheets <6m - 8mm dia hole Sheets 6 to 9m - 10mm dia hole Sheets 9 to 12m - 12mm dia hole Sheets 12 to 28m - 16mm dia hole | Neoprene washer, load spreading profiled washer (0.95mm metal or 1.2mm aluminium) to match main roofing material, and 36mm EPDM sealing washer 32mm Weatherlok washer may be suitable. Contact supplier to confirm |
Consult with roofing manufacturer for project specific fixings and fastener pattern.
Location: | ~ |
Profile: | Steelform DB7 |
Base metal type / BMT: | ~ |
Purlin material: | ~ |
Fixing: | ~ |
Options for coated Steel finish:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
Note, for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) amend Class 4 fixings to Class 5.
FIXINGS FOR STEEL DB7 ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 14g x 75mm class 5 screws | Neoprene washer May require EPDM and load spreading washer# |
Steel up to 3mm | 14g x 75mm class 5 screws | Neoprene washer May require EPDM and load spreading washer# |
Steel 3 - 12mm | 14g x 75mm class 5 screws | Neoprene washer May require EPDM and load spreading washer# |
Note:
DB7 0.4mm BMT steel | Any span over 1m to have a load spreading washer and EPDM at every fixing point |
DB7 0.55mm BMT steel | No washers or EPDMs required up to 2.4m end span or 1.8m intermediate span. Required at every fixing point over the above spans. |
FIXINGS FOR ALUMINIUM DB7 ROOFING
PURLINS | FIXINGS | WASHERS (if required) |
Timber | 14g x 75mm class 5 aluminium type 17 hex head screws | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel up to 3mm | Grade 304 stainless steel 14g x 75mm class 5 with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel 3 - 12mm | Grade 304 stainless steel 14g x 75mm class 5 with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Refer to NZMRM CoP and consult with Taranaki Steelformers fastening supplier for further details.
Do not use galvanized or zinc coated screws (e.g. Class 3 or 4)
FIXINGS FOR TRANSLUCENT DB7 ROOFING (excluding polycarbonate)
PURLINS | FIXINGS | WASHERS |
Timber or Steel . | Fastener as for main roofing 12# or 14# self drilling screws All fastener holes pre-drilled over-size for GRP: Sheets <6m - 8mm dia hole Sheets 6 to 9m - 10mm dia hole Sheets 9 to 12m - 12mm dia hole Sheets 12 to 28m 16mm dia hole | Neoprene washer, load spreading profiled washer (0.95mm metal or 1.2mm aluminium) to match main roofing material, and 36mm EPDM sealing washer |
Consult with roofing manufacturer for project specific fixings and fastener pattern.
Profile: | Ribline |
Base metal type / BMT: | ~ |
Purlin material: | ~ |
Fixing: | ~ |
BMT: | Steel - 0.4mm G550, 0.55mm G550 or G300 |
| Aluminium - 0.9mm, alloy type 5005 or 5052 marine grade, H36 temper |
Material: | Steel - Colorsteel Maxx, Colorsteel Endura, Zincalume, Galvsteel, ColorCote ZinaCore (ZR8/ZRX), ColorCote MagnaFlow (ZM8/ZMX) |
| Aluminium - ColorCote AlumiGard (AR8/ARX) |
| Translucent - Ampelite (excluding Polycarbonate) |
Purlin Material: | Timber or Steel (steel thickness; up to 3mm, or 3 -12mm) |
Fixing: | Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material. |
Edge seal: | ZinaCore X (ZRX) must be edge sealed with Coilon Cut Edge Protection Lacquer to all cut edges. |
Fixings: | Note, for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) amend Class 4 fixings to Class 5. |
FIXINGS FOR STEEL RIBLINE ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 60mm Weatherseal Spiral Rolled Nail 12- 11x65mm T17 Timbertite** | Neoprene washer May require EPDM and load spreading washer# |
Steel up to 3mm | 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
Steel 3 - 12mm | 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
#Metal washer to be Zn/Al for MagnaFlow X
FIXINGS FOR ALUMINIUM RIBLINE ROOFING
PURLINS | FIXINGS | WASHERS (if required) |
Timber | 14- 11x65 Alutite aluminium type 17 hex head screws | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel up to 3mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Steel 3 - 12mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals |
Refer to NZMRM CoP and consult with Taranaki Steelformers fastening supplier for further details.
Do not use galvanized or zinc coated screws (e.g. Class 3 or 4)
FIXINGS FOR TRANSLUCENT RIBLINE ROOFING (excluding polycarbonate)
PURLINS | FIXINGS | WASHERS |
Timber or Steel. | Fastener as for main roofing 12# or 14# self drilling screws All fastener holes pre-drilled over-size for GRP: Sheets <6m - 8mm dia hole Sheets 6 to 9m - 10mm dia hole Sheets 9 to 12m - 12mm dia hole Sheets 12 to 28m 16mm dia hole | Neoprene washer, load spreading profiled washer (0.95mm metal or 1.2mm aluminium) to match main roofing material, and 36mm EPDM sealing washer |
Consult with roofing manufacturer for project specific fixings and fastener pattern.
Profile: | Styleline |
Base metal type / BMT: | ~ |
Purlin material: | ~ |
Fixing: | ~ |
BMT: | Steel - 0.4mm G550, 0.55mm G550 or G300 |
| Aluminium - 0.9mm, alloy type 5005 or 5052 marine grade, H36 temper |
Material: | Steel - Colorsteel Maxx, Colorsteel Endura, Zincalume, Galvsteel, ColorCote ZinaCore (previously (ZR8/ZRX), MagnaFlow (previously ZM8/ZMX) |
| Aluminium - 5052 grade, AlumiGard (previously AR8/ARX) |
| Translucent - Alsynite, Ampelite |
Purlin Material: | Timber or Steel (steel thickness; up to 3mm, 3 -12mm) |
Fixing: | Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material. |
| Note for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) amend Class 4 fixings to Class 5. |
FIXINGS FOR STEEL STYLELINE ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 75mm Weatherseal Spiral Rolled Nail 12- 11x65mm T17 Timbertite** | Neoprene washer May require EPDM and load spreading washer# |
Steel up to 3mm | 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
Steel 3 - 12mm | 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
#Metal washer to be Zn/Al for MagnaFlow X
FIXINGS FOR ALUMINIUM STYLELINE ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 14- 11x65 Alutite aluminium type 17 hex head screws | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Steel up to 3mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Steel 3 - 12mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Refer to NZMRM CoP and consult with Taranaki Steelformers fastening supplier for further details.
Do not use galvanized or zinc coated screws (e.g. Class 3 or 4)
FIXINGS FOR TRANSLUCENT STYLELINE ROOFING (including polycarbonate)
PURLINS | FIXINGS | WASHERS |
Timber or Steel . | Fastener as for main roofing 12# or 14# self drilling screws All fastener holes pre-drilled over-size for GRP: Sheets <6m - 8mm dia hole Sheets 6 to 9m - 10mm dia hole Sheets 9 to 12m - 12mm dia hole Sheets 12 to 28m 16mm dia hole All fastener holes pre-drilled over-size for PVC & polycarbonate: Sheets <4m - 10mm dia hole Sheets <6m - 12mm dia hole Sheets >6m - not recommended | Neoprene washer, load spreading profiled washer (0.95mm metal or 1.2mm aluminium) to match main roofing material, and 36mm EPDM sealing washer |
Consult with roofing manufacturer for project specific fixings and fastener pattern.
Location: | ~ |
Profile: | Corrugate |
Base material type / BMT: | ~ |
Purlin material: | ~ |
Fixing: | ~ |
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill finish)
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated)
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Ampelite |
|
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
Note, for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) amend Class 4 fixings to Class 5
FIXINGS FOR STEEL CORRUGATE ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 60mm Weatherseal Spiral Rolled Nail 12- 11x55mm T17 Timbertite** | Neoprene washer May require EPDM and load spreading washer# |
Steel up to 3mm | 12- 14x45 Steeltite 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
Steel 3 - 12mm | 12- 14x45 Steeltite 6- 14x55 Unitite** | Neoprene washer May require EPDM and load spreading washer# |
#Metal washer to be Zn/Al for MagnaFlow X
FIXINGS FOR ALUMINIUM CORRUGATE ROOFING
PURLINS | FIXINGS | WASHERS |
Timber | 12- 11x55 Alutite aluminium type 17 hex head screws | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Steel up to 3mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Steel 3 - 12mm | Grade 304 stainless steel 6- 14x55 Unitite with 10mm diameter oversized holes | EPDM fully bonded aluminium washers or profiled aluminium washers with EPDM seals. |
Refer to NZMRM CoP and consult with Taranaki Steelformers fastening supplier for further details.
Do not use galvanized or zinc coated screws (e.g. Class 3 or 4)
FIXINGS FOR TRANSLUCENT CORRUGATE ROOFING (including polycarbonate)
PURLINS | FIXINGS | WASHERS |
Timber or Steel . | Fastener as for main roof cladding 12# or 14# self drilling screws All fastener holes pre-drilled over-size for GRP: Sheets <6m - 8mm dia hole Sheets 6 to 9m - 10mm dia hole Sheets 9 to 12m - 12mm dia hole Sheets 12 to 28m 16mm dia hole All fastener holes pre-drilled over-size for PVC & polycarbonate: Sheets <4m - 10mm dia hole Sheets <6m - 12mm dia hole Sheets >6m - not recommended | Neoprene washer, load spreading profiled washer (0.95mm metal or 1.2mm aluminium) to match main cladding material, and 36mm EPDM sealing washer. |
Consult with roofing manufacturer for project specific fixings and fastener pattern.
Location: | ~ |
Roof pitch: | ~ |
Profile: | Steelformers 45mm Snapseam |
Base metal type: | ~ |
Base Metal Thickness (BMT): | ~ |
Coating system: | ~ |
Coating colour: | ~ |
Pan width: | ~ |
Pan fixing: | ~ |
Substrate: | ~ |
Underlay: | ~ |
Purlin type/size: | ~ |
Purlin spacing: | 450mm (all wind zones) |
Framing material: | ~ |
Options:
Location: | Suitable for Low/Med/High/ Very High Wind Zones. For Extra high / SED (Specific Engineering Design) wind zones, contact Steelformer, as these areas are subject to review. |
Roof pitch: | 3° minimum pitch to E2/AS1 and NZMRM Code of Practice |
Pan width: | Standard widths are 370mm and 460mm (rib to rib). Custom pan widths available upon request. It is standard Steelformers practice that the pans are run with swages, for extra rigidity and strength, and for reducing wind-driven roof noise. If the customer wants a smooth finish to the pans it is at Steelformers discretion. |
Pan fixing: | Concealed clips fixed to Steelformers technical information. Refer to various fixings listed in table below. Refer to NZMRM Code of Practice or consult with Steelformers representative, to confirm Fixing Clip spacings and fixings, to suit Wind Zone and framing type, respectively. |
| In all wind zones, purlins to be set at 450mm centres maximum, with clips fixed at 450mm centres. It is Steelformers standard practice that clips are fixed to all ribs of all purlin lines. |
Substrate: | None or minimum 12mm pywood H3.2 CCA, Stress Grade F11, CD Face Grade. |
| For Low/Med/High Wind Zones, Quattro 45mm Snapseam does not require a plywood substrate and can be installed directly over purlins. Optionally, the specifier may prefers a substrate e.g. for improved noise attenuation to NZMRM Code of Practice. For Very high/Extra high / SED (Specific Engineering Design) wind zones a plywood substrate is required. |
| The minimum requirement for a substrate is a plywood sheet 12mm thick, H3.2 CCA treated (water based system), Stress Grade F11, CD Face Grade installed moisture content 18% or less. Substrate fixed to structural frame to NZBC, and Taranaki Steelformers technical information. |
Underlay: | If using solid plywood backing, DuPont™ Tyvek® Metal underlay (or an equivalent Steelformers approved product) is required. Refer to 4161DP for DUPONT TYVEK UNDERLAY SYSTEM for DuPont™ Tyvek® Metal underlay. |
Purlin size: | generally 75x50mm or 100x50mm on flat, fixed to NZBC. |
Framing material: | Timber or Steel, framing or girts (steel thickness; up to 3mm, or 3 - 12mm) |
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Ampelite |
|
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
FIXINGS FOR STEEL TROUGH CLADDING
FRAMING | FIXINGS FOR CONCEALED CLIPS (TWO PER CLIP) |
Timber. | 10# gauge screws long enough to penetrate a minimum of 30mm into the timber purlin. |
Steel up to 3mm, and Steel 3 - 12mm. | 10# x 16mm wafer head screws, or 12# Hex head screws (where the profile provides clearance). Fasteners must penetrate a minimum of 6mm into the steel. |
Location: | ~ |
Roof pitch: | ~ |
Profile: | Steelformers 25mm Double Standing Seam |
Base metal type: | ~ |
Base Metal Thickness (BMT): | ~ |
Coating system: | ~ |
Coating colour: | ~ |
Pan width: | ~ |
Pan fixing: | ~ |
Substrate: | ~mm thick plywood. H3.2 CCA, Stress Grade F11, CD Face Grade |
Underlay: | Refer to 4161 UNDERLAYS, FOIL AND DPC |
Framing material: | ~ |
Options:
Roof pitch: | 3° minimum pitch to E2/AS1 and NZMRM Code of Practice |
Base metal type & BMT: | Zincalume 0.55mm (G300) BMT; |
Coating system: | Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®; |
Coating colour: | Refer to coating system colour range. |
Pan width: | Standard widths are 440mm and 530mm (rib to rib). Custom pan widths are available upon request
It is standard Steelformers practice that the pans are run with swages, for extra rigidity and strength, and for reducing wind-driven roof noise. If the customer wants a smooth finish to the pans it is at Steelformers discretion. |
Pan fixing: | Concealed clips fixed to Steelformers technical information. Refer to various fixings listed in table below. Refer to NZMRM Code of Practice or consult with Steelformers representative, to confirm Fixing Clip spacings and fixings, to suit Wind Zone and framing type, respectively. |
| In all wind zones, purlins to be set at 450mm centres maximum, with clips fixed at 450mm centres. It is Steelformers standard practice that clips are fixed to all ribs of all purlin lines |
Substrate: | Installed over a solid plywood in all wind zones. |
| The minimum requirement for a substrate is a plywood sheet 12mm thick, H3.2 CCA treated (water based system), Stress Grade F11, CD Face Grade installed moisture content 18% or less. Substrate fixed to structural frame to NZBC, and Taranaki Steelformers technical information. |
Framing material: | Timber or Steel, framing or girts (steel thickness; up to 3mm, or 3 - 12mm) |
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Ampelite |
|
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
FIXINGS FOR STEEL TROUGH CLADDING
FRAMING | FIXINGS FOR CONCEALED CLIPS (TWO PER CLIP) |
Timber. | 10# gauge screws long enough to penetrate a minimum of 30mm into the timber purlin. |
Steel up to 3mm, and Steel 3 - 12mm. | 10# x 16mm wafer head screws, or 12# Hex head screws (where the profile provides clearance). Fasteners must penetrate a minimum of 6mm into the steel. |
Location: | ~ |
Roof pitch: | ~ |
Profile: | Steelformers 25mm Nailstrip Snaplock |
Base metal type: | ~ |
Base Metal Thickness (BMT): | ~ |
Coating system: | ~ |
Coating colour: | ~ |
Pan width: | ~ |
Pan fixing: | ~ |
Substrate: | ~mm thick plywood, H3.2 CCA, Stress Grade F11, CD Face Grade |
Underlay: | Refer to 4161 UNDERLAYS, FOIL AND DPC |
Framing material: | ~ |
Options:
Roof pitch: | 3° minimum pitch to E2/AS1 and NZMRM Code of Practice |
Base metal type & BMT: | Zincalume 0.55mm (G300) BMT; |
Coating system: | Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®; |
Coating colour: | Refer to coating system colour range. |
Pan width: | Standard pan width are 265mm or 405mm. Custom pan widths are available upon request.
It is standard Steelformers practice that the pans are run with swages, for extra rigidity and strength, and for reducing wind-driven roof noise. If the customer wants a smooth finish to the pans it is at Steelformers discretion. |
Pan fixing: | Concealed clips fixed to Steelformers technical information. Refer to various fixings listed in table below. Refer to NZMRM Code of Practice or consult with Steelformers representative, to confirm Fixing Clip spacings and fixings, to suit Wind Zone and framing type, respectively. |
| In all wind zones, purlins to be set at 450mm centres maximum, with clips fixed at 450mm centres. It is Steelformers standard practice that clips are fixed to all ribs of all purlin lines. |
Substrate: | Installed over a solid plywood in all wind zones. |
| Quattro 25mm series must be laid on a plywood sheet minimum 12mm thick, H3.2 CCA treated (water based system), stress Grade F11, CD Face Grade, moisture content 18% or less. Substrate fixed to structural frame to NZBC, and Taranaki Steelformers technical information. |
Framing material: | Timber or Steel, framing or girts (steel thickness; up to 3mm, or 3 - 12mm) |
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Ampelite |
|
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
FIXINGS FOR STEEL TROUGH CLADDING
FRAMING | FIXINGS FOR CONCEALED CLIPS (TWO PER CLIP) |
Timber. | 10# gauge screws long enough to penetrate a minimum of 30mm into the timber purlin. |
Steel up to 3mm, and Steel 3 - 12mm. | 10# x 16mm wafer head screws, or 12# Hex head screws (where the profile provides clearance). Fasteners must penetrate a minimum of 6mm into the steel. |
Location: | ~ |
Profile: | Steelformers 25mm Snapseam |
Base metal type: | ~ |
Base Metal Thickness (BMT): | ~ |
Coating system: | ~ |
Coating colour: | ~ |
Pan width: | ~ |
Pan fixing: | ~ |
Substrate: | ~mm thick plywood, H3.2 CCA, Stress Grade F11, CD Face Grade |
Underlay: | Refer to 4161 UNDERLAYS, FOIL AND DPC |
Framing material: | ~ |
Options:
Roof pitch: | 3° minimum pitch to E2/AS1 and NZMRM Code of Practice |
Base metal type & BMT: | Zincalume 0.55mm (G300) BMT; |
Coating system: | Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®; |
Coating colour: | Refer to coating system colour range. |
Pan width: | Standard pan width are 275mm or 415mm. Custom pan widths are available upon request.
It is standard Steelformers practice that the pans are run with swages, for extra rigidity and strength, and for reducing wind-driven roof noise. If the customer wants a smooth finish to the pans it is at Steelformers discretion. |
Pan fixing: | Concealed clips fixed to Steelformers technical information. Refer to various fixings listed in table below. Refer to NZMRM Code of Practice or consult with Steelformers representative, to confirm Fixing Clip spacings and fixings, to suit Wind Zone and framing type, respectively. |
| In all wind zones, purlins to be set at 450mm centres maximum, with clips fixed at 450mm centres. It is Steelformers standard practice that clips are fixed to all ribs of all purlin lines |
Substrate: | Installed over a solid plywood in all wind zones. |
| Quattro 25mm series must be laid on a plywood sheet minimum 12mm thick, H3.2 CCA treated (water based system), stress Grade F11, CD Face Grade, moisture content 18% or less. Substrate fixed to structural frame to NZBC, and Taranaki Steelformers technical information. |
Framing material: | Timber or Steel, framing or girts (steel thickness; up to 3mm, or 3 - 12mm) |
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Zincalume® | 0.55mm | G550 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G550 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Options for Translucent roofing:
Brand | Product/profile Type |
Alsynite One | Topglass (including Gelcoat and Gelcoat Ultrasafe) |
Ampelite |
|
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
FIXINGS FOR STEEL TROUGH CLADDING
FRAMING | FIXINGS FOR CONCEALED CLIPS (TWO PER CLIP) |
Timber. | 10# gauge screws long enough to penetrate a minimum of 30mm into the timber purlin. |
Steel up to 3mm, and Steel 3 - 12mm. | 10# x 16mm wafer head screws, or 12# Hex head screws (where the profile provides clearance). Fasteners must penetrate a minimum of 6mm into the steel. |
Profile: | ~ |
Base metal type: | ~ |
Base Metal Thickness (BMT): | ~ |
Coating system: | To match roofing |
Coating colour: | To match roofing |
Options:
Profile: | Ridging - Standard round-top (Ribline, Corrugate), Square-top ali edge (Styleline, Ribline, DB7), Square-top notched (Styleline, NC 710). |
| Valley - Ribline, Styleline, DB7, NC 710, Corrugate. |
| Barge - Standard (Corrugate), Custom, Barge Roll (Corrugate), A-square, Ali edge (Ribline, DB7, Corrugate), Notched (Styleline, NC 710). |
| Apron/junction - Standard (Corrugate), Custom, Ali edge (Ribline, DB7, Corrugate), Notched (Styleline, NC 710) |
| Change of Pitch (COP) - Ali edge COP (Ribline, DB7, Corrugate), Notched COP (Styleline, NC 710). |
| Assorted roof - Gutter, Chimney (with Ali edge for Ribline), Backflashing (for skylights, chimneys, roof penetrations). |
Modify colour and coating if necessary. Delete if specified elsewhere in documentation e.g. drawings. Available in lengths up to 8 metres.
Options for coated Steel:
Base Metal Type | BMT | Steel grade | Coating system |
Zincalume® | 0.55mm | G300 | Colorsteel® Endura® |
Zincalume® | 0.55mm | G300 | Colorsteel® Maxx® |
Options for Aluminium (Mill Finish):
Aluminium (Mill Finish) | BMT | Coil Width | Temper | Mill Finish |
5005 series coil | 0.9mm | 1200mm | H32 | 0000510 |
5005 series coil | 0.9mm | 1200mm | H32 | 0014231 |
5052 series roofing coil | 0.9mm | 1200mm | H32 | 0017643 |
5052 series roofing coil | 0.9mm | 1220mm | H34 | 0018333 |
5052 series roofing coil | 0.9mm | 1220mm | H36 | 0015106 |
5052 series roofing coil | 0.9mm | 610mm | H34 | 0018373 |
5052 series roofing coil | 0.9mm | 940mm | H34 | 0018332 |
5052 series roofing coil | 0.9mm | 940mm | H36 | 0014699 |
Options for Aluminium (coated):
Aluminium (coated) | BMT | Coil Width | Temper | Coating system |
5005 series coil | 0.9mm BMT | 1200mm | H34 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
5052 series marine grade coil | 0.9mm BMT | 1200mm | H36 | ColorCote® AlumiGard™, by Pacific Coilcoaters |
Copper:
Sheet or Coil | BMT | Size | Temper | Finish |
DHP Copper sheet | 0.70mm | 2400mm x 1000mm | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 610mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1000mm coil width | Half Hard | Mill Finish |
DHP Copper Coil | 0.70mm | 1230mm coil width | Half Hard | Mill Finish |
Correct fastener selection to be made in consultation with Taranaki Steelformers. NZMRM CoP provides some information on selection, fixing methods and placement of fasteners. Ensure fasteners durability is at least equal to durability of roofing material.
Note, for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223) ensure all fixings are Class 5.
Brand: | ~ |