ZINCALUME®
ZINCALUME® coated steel has long-term corrosion resistance in moderate conditions. It offers a blend of versatility and durability. ZINCALUME® combines 55% aluminium alloy coated steel and 45% zinc, giving advantages of both metals. The resulting alloy coating enhances corrosion resistance, making it ideal for applications such as roofing and cladding.
PAINTING
ZINCALUME® is readily paintable using good quality primer and water-based acrylic topcoats. Paint manufacturers instructions should be followed. Dirt, grease and any loose material must be cleaned off the surface so it is clean and dry prior to the first coat being applied.
PRODUCT FINISH
ZINCALUME® has a finely spangled silvery matte finish. After exposure, the surface finishing darkens over time as the resin coating weathers away. This change is a natural one and visual only. The protective properties of the product are not affected.
HANDLING & STORAGE
If your ZINCALUME® product becomes wet during storage, the product should be immediately separated, wiped clean with a cloth and placed in a position where it can completely dry.
FASTENERS
The fasteners durability should equal (or exceed) that of the roofing or cladding product and should be suitable for the environment. Stainless steel fasteners and lead headed nails should not be used.
FLASHINGS & ACCESSORIES
Flashings and ridge capping should be manufactured from the same coating system as used for the main roof area to ensure equal durability.
WARRANTY & MAINTENANCE
Your warranty is dependant on two things: having the right product for the right environment and ensuring it is maintained in line with the manufacturers maintenance recommendations.
ZINCALUME® product are recommended for use in moderate environments only. A moderate environment is characterised by:
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Little or no salt deposits
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The occasional smell of salt in the air
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Typically starts 500m-1000m from breaking surf such as is found on exposed coasts, or in the immediate vicinity of clam salt water such as estuaries
ZINCALUME® coated steel performs well in most areas not regularly washed by rainwater. However, regular washing of areas not naturally rain washed is essential to the longevity of the product and not voiding the product warranty.
Maintenance recommendations for ZINCALUME® used as roofing and wall cladding as is follows:
LIMITATIONS OF USE
In almost all applications, ZINCALUME® will out perform galvanised steel. There are, however, a small number of applicatiOns for which galvanised steel is more suitabLe.
ZINCALUME® coated steel must not be used for:
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Formwork in contact with wet concrete
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Products to be embedded in concrete
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Animal shelters where ammonia levels are constantly high
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Fertiliser storage sheds and containers
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Culverts, or where ZINCALUME® coated steel would be buried in the ground
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Water tanks
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Highly alkaline environments (e.g. cement manufacturing)
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Coolroom products
MATERIALS & COATINGS
GALVSTEEL®
GALVSTEEL® is mild galvanised steel with a coating of zinc. The zinc protects the steel by providing cathodic protection to the exposed steel, so should the surface be damaged the zinc will corrode in preference to the steel. Galvanised steel is one of the most widely used products, used extensively in the building sector, automotive, agricultural and other areas where the steel needs to be protected from corrosion.
Taranaki Steelformers continues to roll-form GALVSTEEL® in our four roofing profiles so that any roof repair or patch work on existing galvanised roofs can be done. GALVSTEEL® is not advised for any new roof or cladding project however, it is the most suited material for intensive animal shelters.
Please talk to one of the Steelformers sales representatives to discuss your project and to determine whether GALVSTEEL™ is suitable for you application.
COLORSTEEL® ENDURA®
The roofing and cladding choice for New Zealanders. COLORSTEEL® ENDURA® represents the perfect blend of form and function. Suitable for a wide range of rollformed roof and wall claddings, gutters, downpipes & fences.
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Ideal for moderate to severe environments (determined by your property's proximity to the coast, geothermal areas and industrial environments)
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Base metal thickness (BMT) is typically 0.40mm or 0.55mm
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The steel substrate is either G550 or G300
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Available in all COLORSTEEL® colours
THE COLORSTEEL® RANGE
Please note that the colours shown are indicative and will vary depending on your screen resolution and/or print quality. We recommend you request a sample from your nearest Steelformers branch. Be sure to contact a Steelformers representative to check stock levels of your chosen colour prior to ordering.
HANDLING & STORAGE
If COLORSTEELl® prepainted steel products are to be stored for any time prior to forming or installation, they must be stored in dry, ventilated conditions. Storage which allows water (including condensation) to be trapped between the sheets may damage the coating beyond repair. COLORSTEEL® ENDURA® products must be handled carefully during transport, fabrication and fixing to avoid damaging the surface.
INSTALLATION
Full installation details for COLORSTEEL® ENDURA® is contained in the New Zealand Steel Installers' Guide and NZMRM Code of Practice.
FIXINGS
Aluminium and factory painted fixings are acceptable. The fasteners durability should equal (or exceed) that of the roofing or cladding product and should be suitable for the environment. Stainless steel screws and lead head nails must not be used.
WARRANTY & MAINTENANCE
Your warranty is dependant on two things, having the right product for the right environment and ensuring you maintain it in line with the maintenance recommendations.
COLORSTEEL® ENDURA® products are recommended for use in moderate environments to severe environments. Maintenance recommendations for residential warranties as follows. For commercial buildings such as schools and warehouses, refer to New Zealand Steel for details of commercial warranties.
A moderate environment is characterised by:
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Little or no salt deposits
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The occassional smell of salt in the air
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Typically starts 500-1000m from breaking surf such as is found on exposed coasts, or in the immediate vicinity of calm salt water such as estuaries
A severe environment is characterised by:
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Little salt deposits
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The frequent smell of salt in the air
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Typically starts 100-500m from breaking surf such as is found on exposed coasts
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In the immediate vicinity of large expanses of calm salt water such as harbour foreshores
These environments may be extended inland by prevailing winds and local conditions. Ensure you contact a Steelformers representative to ensure you have chosen the right solution for your environments.
LIMITATIONS OF USE
COLORSTEEL® ENDURA® products should not be used in the following applications:
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Embedded in concrete
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In contact with permanently wet materials
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Water tanks
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In contact with soil, bark or similar
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As concrete form work
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In intensive animal shelters
Copper or brass pipes must not be allowed to discharge onto Endura® or be allowed to come into contact with them.
The use of other materials in proximity to Endura® must be in accordance with New Zealand Steel's Specifiers and Builders Guide. Mixing of brands of pre-painted steel material on the same building is not recommended.
The reactions between ZINCALUME® steel and lead flashings will degrade the ZINCALUME® steel material. Soft zinc or aluminium flashings should be used. Marking with lead pencils is not advised, and sealing washers should be low carbon non-conducting.
USEFUL LINKS
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Colorsteel® Endura®
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New Zealand Steel: Environmental Categories, Warranty & Product Maintenance Recommendations
COLORSTEEL® MAXX®
The ideal solution for rugged coastlines. Designed specifically for New Zealand's more extreme conditions COLORSTEELl® MAXX® will stand up higher to atmospheric salt concentrations. Suitable for a wide range of rollformed roof and wall claddings, gutters, downpipes & fences.
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Ideal for severe to very severe environments (determined by your property's proximity to the coast, geothermal areas and industrial environments)
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ZINCALUME® steel base with a multi coating paint system applied
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Corrosion resistant primer and baked-on finish to withstand tough environments
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Base metal thickness (BMT) is typically 0.40mm or 0.55mm
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The steel substrate is either G550 or G300
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Available in all COLORSTEEL® colours
THE COLORSTEEL® RANGE
Please note that the colours shown are indicative and will vary depending on your screen resolution and/or print quality. We recommend you request a sample from your nearest Steelformers branch. Be sure to contact a Steelformers representative to check stock levels of your chosen colour prior to ordering.
HANDLING & STORAGE
If COLORSTEEL® prepainted steel products are to be stored for any time prior to forming or installation, they must be stored in dry, ventilated conditions. Storage which allows water (including condensation) to be trapped between the sheets may damage the coating beyond repair. COLORSTEEL® MAXX® products must be handled carefully during transport, fabrication and fixing to avoid damaging the surface.
INSTALLATION
Full installation details for COLORSTEEL® MAXX® is contained in the New Zealand Steel Installers' Guide and NZMRM Code of Practice.
FIXINGS
Aluminium and factory painted fixings are acceptable. The fasteners durability should equal (or exceed) that of the roofing or cladding product and should be suitable for the environment. Stainless steel screws and lead-head nails must not be used.
WARRANY & MAINTENANCE
Your warranty is dependant on two things, having the right product for the right environment and ensuring you maintain it in line with the maintenance recommendations.
COLORSTEEL® MAXX® products are recommended for use in moderate environments to severe environments. Maintenance recommendations for residential warranties as follows. For commercial buildings such as schools and warehouses, refer to New Zealand Steel for details of commercial warranties.
A moderate environment is characterised by:
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Little or no salt deposits
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The occassional smell of salt in the air
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Typically starts 500-1000m from breaking surf such as is found on exposed coasts, or in the immediate vicinity of calm salt water such as estuaries
A severe environment is characterised by:
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Little salt deposits
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A frequent smell of salt in the air
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Typically starts 100-500 metres from breaking surf such as found on exposed coasts
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In the immediate vicinity of large expanses of calm salt water such as harbour foreshores
A very severe environment (which starts 25m from the high water mark on the East Coast and 50m on the West Coast) is characterised by:
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Heavy salt deposits
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The almost constant smell of salt in the air
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Close to breaking surf such as is found on exposed coasts
These environments may be extended inland by prevailing winds and local conditions.
Ensure you contact a Steelformers representative to ensure you have chosen the right solution for your environment.
LIMITATIONS OF USE
COLORSTEEL® MAXX® products are designed for use in very severe environments, greater than 100m from the West Coast. Before using COLORSTEEL® MAXX® products near sources of industrial pollution or in geothermal areas, consult a Steelformers representative.
COLORSTEEL® MAXX® products should not be used in the following applications:
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Embedded in concrete
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In contact with permanently wet materials
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Water tanks
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In contact with soil, bark or similar
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As concrete form work
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In intensive animal shelters
Copper or brass pipes must not be allowed to discharge onto MAXX® or be allowed to come into contact with them.
The use of other materials in proximity to MAXX® must be in accordance with New Zealand Steel's Specifiers and Builders Guide. Mixing of brands of pre-painted steel material on the same building is not recommended.
The reactions between ZINCALUME® steel and lead flashings will degrade the ZINCALUME® steel material. Soft zinc or aluminium flashings should be used. Marking with lead pencils is not advised, and sealing washers should be low carbon non-conducting.
USEFUL LINKS
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New Zealand Steel: Environmental Categories, Warranty & Product Maintenance Recommendations
COLORSTEEL® DRIDEX®
& DRIDEX®+
COLORSTEEL® DRIDEX® is an innovative roofing solution that delivers superior
condensation absorption and allows for enhanced ventilations, creating drier and healthier internal environments.
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Available in two grades, DRIDEX® is recommended for moderate environments and DRIDEX+® is for severe environments (determined by your sites proximity to the coast, geothermal and industrial areas)
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A layer of anti-condensation fleece is on the underside of each sheet, which keeps the roof dry by absorbing moisture
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Reduces mould and other pollutants associated with asthma, and other respiratory tract inflammations and allergies
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Available in all standard existing COLORSTEEL® colours. The fleece colour is grey, similar to the grey primer on the underside of standard COLORSTEEL® products
THE COLORSTEEL® RANGE
Please note that the colours below are indicative and will vary depending on your screen resolution and/or print quality. We recommend you request a sample from your nearest Steelformers branch. Be sure to contact a Steelformers representative to check stock levels of your chosen colour prior to placing your order.
LIMITATIONS OF USE
COLORSTEEL® DRIDEX® products are designed for use as roofing products only and must be installed by an accredited installer. Before using COLORSTEEL® DRIDEX® products near sources of industrial pollution or in geothermal areas, consult a Steelformers representative.
COLORSTEEL® DRIDEX® should not be used in the following applications:
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Gutters or downpipes
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Flashings
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Cladding
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Embedded in concrete
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In contact with permanently wet materials
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Water tanks
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In contact with soil, bark or similar
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As concrete formwork
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In intensive animal shelters
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Buildings with very high internal humidity such as indoor pools
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Shelters and building where fumes are generated such as fuel stations
Adequate ventilations must be provided in all applications. Additional conditions apply for skillion (mono pitch) roofs. this is covered in the DRIDEX® accredited installer training.
WARRANTY & MAINTENANCE
COLORSTEEL® products are produced and warranted by New Zealand Steel. Your warranty is dependent on two important factors; having the right product for the right environment and ensuring it is maintained per the manufacturers maintenance recommendations.
0.90MM BMT ALUMINIUM
Steelformers can provide a range of roofing and cladding profiles and flashings in 0.90mm BMT mill finish aluminium. We can also manufacture 0.90mm arctic white aluminium flashings for our stocked 1200 x 2400mm flatsheets.
FIXINGS
Mechanical fasteners, whether rivets or screws, are available in aluminium. Where use of aluminium fasteners is unsuitable (e.g. self-drilling screws), stainless steel is regarded as the best alternative.
CONTACT WITH OTHER MATERIALS
In general, direct chemical attack of aluminium only occurs when the PH is below 5 or above 8. Contact with other metals can result in corrosions due to galvanic reactions. Copper, steel, stainless steel and lead will all cause attack of the aluminium alloy. Contact with zinc will cause the zinc to be attacked.
MAINTENANCE
Regular cleaning is required to maintain an unaffected surface for good aesthetic quality in industrial and marine environments. This can be achieved naturally by rain washing but surfaces not adequately washed by rain must be cleaned by water washing and scrubbing with a soft brush to prevent build up of salt, dirt or other airborne deposits. In severe marine locations the washing frequency may be every 4-6 months for surfaces not washed by rain.
COLORCOTE® ALUMIGARD™
ColorCote® AlumiGard™ is a premium, marine grade metal roofing product, using an advanced coating system on an aluminium substrate, designed to withstand the harshest conditions.
Suitable for use in 'very severe' marine environments, right up to the waterline, as well as chemical or acidic exposure in harsh industrial or geothermal areas.
COLOUR CHOICE
AlumiGard™ is available in over 40 colours. For full details, download a copy of the ColorCote® colour chart by clicking on the link below.
Taranaki Steelformers does not stock a full range of ColorCote® AlumiGard™ products, however, coils can be sourced as required. Conditions apply.
WARRANTY & MAINTENANCE
Depending on the environment, Pacific Coilcoaters offers warranties of differing lengths on AlumiGard™ for residential buildings.
Please contact a Steelformers representative for more information on the ColorCote® AlumiGard™ range and how it can add value to your project.
For further information, click on the link below:
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ColorCote® AlumiGard™: Technical Information