4311TS
STEELFORMERS PROFILED METAL ROOFING
1
GENERAL

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.

1.1
RELATED WORK

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 4312 PROFILED PLASTIC ROOFING for natural lighting sheeting.

Refer to 7411 RAINWATER SPOUTING SYSTEMS for rainwater disposal.

Refer to 4241TS STEELFORMERS PROFILED METAL CLADDING for cladding.

1.2
ABBREVIATIONS

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

Documents
1.3
DOCUMENTS

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

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

AS/NZS 1562.3

Design and installation of sheet roof and wall cladding - Plastic

AS/NZS 2728

Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements

AS 3566

Self-drilling screws for the building and construction industries

AS/NZS 4256.1

Plastic roof and wall cladding materials - General requirements

NZS 3604

Timber-framed buildings

ISO 9223

Corrosion of metals and alloys - Corrosivity of atmosphere - Classification determination and estimation

NZMRM COP

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

1.4
MANUFACTURER/SUPPLIER DOCUMENTS

Manufacturer and supplier documents relating to this part of the work:

Taranaki Steelformers product literature including:

 

Manufacturer/supplier contact details.

Company:

Taranaki Steelformers

Web:

www.steelformers.co.nz

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.

Warranties

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.

1.5
WARRANTY - MANUFACTURER/SUPPLIER

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.

Requirements
1.6
NO SUBSTITUTIONS

Substitutions are not permitted to any specified system, or associated components and products.

1.7
QUALIFICATIONS

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).

Performance - Wind

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.

1.8
FIXINGS, WIND

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.

1.9
DESIGN PARAMETERS - NON SPECIFIC DESIGN

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.

1.10
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:

  • For some situations Positive and Negative pressures will need to be stated.
  • Also for some situations Face and Edge Zone pressures will need to be stated.
  • Pressures may need to be expressed on a floor by floor basis.
  • For large or complex projects specifically marked up elevations may need to be referred to.

Delete the clause if using DESIGN PARAMETERS - NON SPECIFIC DESIGN.

Performance - General
1.11
PERFORMANCE

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.

1.12
DRINKING WATER

Roofing for collecting potable water to NZBC G12/AS1.

1.13
CO-ORDINATE

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.

2
PRODUCTS

Select the product that suits the brief and use the PRODUCTS and EXECUTION clauses that follow to suit the product selected.

zinc/aluminium coated steel roofing
2.1
PRE-FINISHED HOT-DIPPED ALUMINIUM/ZINC COATED STEEL (G300)

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™.

2.2
PRE-FINISHED HOT-DIPPED ALUMINIUM/ZINC COATED STEEL (G550)

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™.

aluminium roofing
2.3
ALUMINIUM (MILL FINISH)

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.

2.4
ALUMINIUM (COATED)

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 roofing
2.5
COPPER

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 roofing
2.6
TRANSLUCENT SHEETING - THERMO-SETTING

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.

2.7
TRANSLUCENT SHEETING - THERMO-PLASTIC

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
2.8
FASTENERS GENERALLY

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.

2.9
FIXING SCREWS - METAL ROOFING

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.

2.10
RIVETS

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.

2.11
FIXING SCREWS - TRANSLUCENT ROOFING

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.

components
2.12
FLASHINGS GENERALLY

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.

2.13
FLASHINGS TO VERGE, RIDGE AND VALLEY

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.

2.14
BOOT FLASHINGS

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.

accessories
2.15
WIRE NETTING AND SAFETY MESH

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.

2.16
UNDERLAY AND REFLECTIVE FOIL

Refer to 4161 UNDERLAYS, FOIL AND DPC for underlays, foils and DPC.

2.17
SEALANT

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.

2.18
CLOSURE STRIPS

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.

3
EXECUTION
Conditions
3.1
DELIVERY, STORAGE & HANDLING OF PRODUCTS

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.

3.2
SHEET LENGTHS

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).

3.3
STORAGE

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.

3.4
HANDLING

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.

3.5
ROUTINE MATTERS

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.

3.6
INSPECTION

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.

3.7
FRAMING TIMBER MOISTURE

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.

3.8
SEPARATION

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.

Application

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.

3.9
FIX INSULATION

Refer to 4711 THERMAL INSULATION for thermal insulation.

3.10
SET-OUT

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.

3.11
END LAPS

End laps are not permitted, except where specifically detailed.

3.12
THERMAL MOVEMENT

Fix for thermal movement to Taranaki Steelformers Factsheet for selected profile.

3.13
FIXING GENERALLY

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.

3.14
FIXING TRANSLUCENT ROOFING

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.

3.15
MARKING AND CUTTING

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.

3.16
FIX SHEETS

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.

3.17
STOP ENDS AND DOWNTURNS

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.

3.18
INSTALL FLASHINGS

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.

3.19
USE OF SEALANTS

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.

3.20
FLASHING PENETRATIONS

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.

3.21
INSTALL RIDGING

Install ridging by fastening to the purlins through the leading edge of the roofing to the manufacturer requirements.

Completion
3.22
COMPLETION MATTERS

Refer to 1270 CONSTRUCTION for completion requirements and if required commissioning requirements.

Use this standard generic clause and if appropriate add additional special requirements.

3.23
MAINTENANCE

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.

4
SELECTIONS

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.

Coating system - exposure zone
4.1
COATING SYSTEM - EXPOSURE ZONE B-C (CAT 1-3)

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.

4.2
COATING SYSTEM - EXPOSURE ZONE D (CAT 4)

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.

4.3
COATING SYSTEM - EXPOSURE ZONE E (CAT 5)

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.

Roofing profile

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.

4.4
TARANAKI STEELFORMERS - NC 710 FOUR RIB TRAPEZOIDAL PROFILE ROOFING

Location:

~

Profile:

NC 710

Base metal type / BMT:

~

Purlin material:

~

Fixing:

~

Options for coated St

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 Fini

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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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 roofin

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.

 

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.

4.5
TARANAKI STEELFORMERS - DB7 EIGHT RIB TRAPEZOIDAL PROFILE ROOFING

Location:

~

Profile:

Steelform DB7

Base metal type / BMT:

~

Purlin material:

~

Fixing:

~

Options for coated Ste

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 Fini

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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

Options for Aluminium (coat

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

 

Cop

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 roofi

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

4.6
TARANAKI STEELFORMERS - RIBLINE SIX RIB TRAPEZOIDAL PROFILE ROOFING

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.7
TARANAKI STEELFORMERS - STYLELINE FIVE RIB TRAPEZOIDAL PROFILE ROOFING

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

4.8
TARANAKI STEELFORMERS - CORRUGATE PROFILE ROOFING

Location:

~

Profile:

Corrugate

Base material type / BMT:

~

Purlin material:

~

Fixing:

~

Options for coated S

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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

Options for Aluminium (coa

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

 

Copp

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 roo

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.9
TARANAKI STEELFORMERS QUATTRO 45MM SNAPSEAM ROOFING

Location:

~

Roof pitch:

~

Profile:

Steelformers 45mm Snapseam

Base metal type:

~

Base Metal Thickness (BMT):

~

Coating system:

~

Coating colour:

~

Pan width:

~

Pan fixing:

~

Substrate:

~

Purlin type/size:

~

Purlin spacing:

450mm (all wind zones)

Framing material:

~

Options:

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 are possible.

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. In very high and extra-high wind zones pans must be run with swages.

Vented underlay is required to be used in High, Very-High and Extra-High wind zones.

45mm Snapseam is not suitable for use in SED (Specific Engineering Design) wind zones.

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.

Substrate:

For Low/Med/High Wind Zones, Quattro 45mm Snapseam does not require a substrate, however, a substrate is needed for Very high/Extra high wind zones.  Optionally, the specifier may prefers a substrate e.g. for improved noise attenuation to NZMRM Code of Practice.

The minimum requirement for a substrate is a plywood sheet 12mm thick, H3.2 treated (water based system), stress Grade F11, installed moisture content 18% or less. Substrate fixed to structural frame to NZBC, and Taranaki Steelformers technical information.

Purlin size:

generally 75x50mm or 100x50mm on flat, fixed to NZBC.

 

Options for coated St

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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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

 

Co

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.10
TARANAKI STEELFORMERS QUATTRO 25MM DOUBLE STANDING SEAM ROOFING

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

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;
Aluminium (mill finish or coated) 0.80mm BMT;
Copper 0.70mm BMT.

Coating system:

Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®;
Aluminium coating - Euromax premium coil coated with Protec primer and PVDF coating.

Coating colour:

Refer to coating system colour range.

Pan width:

Standard widths are 440mm and 530mm (rib to rib).

Pan widths are customisable to the customer preference. Standard pan width is 440mm.

 

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. In very high and extra-high wind zones pans must be run with swages.

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.

Substrate:

The minimum requirement for a substrate is a plywood sheet 12mm thick, H3.2 treated (water based system), stress Grade F11, 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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.11
TARANAKI STEELFORMERS QUATTRO 25MM NAILSTRIP SNAPLOCK ROOFING

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

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;
Aluminium (mill finish or coated) 0.80mm BMT;
Copper 0.70mm BMT.

Coating system:

Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®;
Aluminium coating - Euromax premium coil coated with Protec primer and PVDF coating.

Coating colour:

Refer to coating system colour range.

Pan width:

Standard pan width are 185mm (cladding only), 265mm or 405mm.

Pans widths are also customisable to customer preference.

 

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. In very high and extra-high wind zones pans must be run with swages.

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.

Substrate:

Quattro 25mm series must be laid on a plywood sheet minimum 12mm thick, H3.2 treated (water based system), stress Grade F11, 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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.12
TARANAKI STEELFORMERS QUATTRO 25MM SNAPSEAM ROOFING

Location:

~

Profile:

Steelformers 25mm Snapseam

Base metal type:

~

Base Metal Thickness (BMT):

~

Coating system:

~

Coating colour:

~

Pan width:

~

Pan fixing:

~

Substrate:

~mm thick plywood

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;
Aluminium (mill finish or coated) 0.80mm BMT;
Copper 0.70mm BMT.

Coating system:

Zincalume coating options - Colorsteel® Endura®, Colorsteel® Maxx®;
Aluminium coating - Euromax premium coil coated with Protec primer and PVDF coating.

Coating colour:

Refer to coating system colour range.

Pan width:

Standard pan width are 195mm (cladding only), 275mm or 415mm.

Pans widths are also customisable to customer preference.

 

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. In very high and extra-high wind zones pans must be run with swages.

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.

Substrate:

Quattro 25mm series must be laid on a plywood sheet minimum 12mm thick, H3.2 treated (water based system), stress Grade F11, 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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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.

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

Accessories
4.13
FLASHINGS - GENERALLY

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

** Note: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

 

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: Change Class 4 to Class 5 for Exposure Zone E to NZBC E2/AS1 (and C5 to ISO 9223)

4.14
CLOSURE STRIPS

Brand:

~