COLORSTEEL Steel Roofing and Cladding User Guide

September 17, 2024
COLORSTEEL

COLOR STEEL Steel Roofing and Cladding

Made to stand the test of time

In New Zealand, we can face some harsh environmental conditions. To maximize the life of your COLORSTEEL® products and maintain the warranty, some simple maintenance is required. The following maintenance practices will help to ensure the long-term performance, durability, and aesthetic appeal of your COLORSTEEL®.

Helping your steel roofing & cladding last longer
All roofing and cladding products are subject to the cumulative effects of weather. Regular washing of steel products increases their durability by limiting attacks from airborne salts, pollutants, and other build-up. Normal rain washing will remove most contaminants from roofs. Wall cladding requires manual washing to prevent the build-up of contaminants that aren’t removed by rain washing. Other areas that do not receive adequate rain washing (known as unwashed areas) require more extensive manual washing. These areas include soffits, undersides of gutters, fascias, and sheltered areas of garage doors as well as any external objects such as air conditioning units, television aerials, flues, and solar panels.

Washing your steel roofing & cladding
Roofing and wall cladding products may be manually washed by either water and a sponge, a soft nylon-bristled brush, or by water blasting at pressures of no more than 2900 psi.

Special Environments

In New Zealand there are areas where local conditions create an increased likelihood of corrosion. Special consideration should be given to material selection in these areas. If you think your project may experience one of the following environments, please contact New Zealand Steel, or your supplier, for advice about the best COLORSTEEL® product to use.

GEOTHERMAL AREAS
Sulphuric compounds associated with geothermal activity create a corrosive environment. Variations in natural activity or draw-off from steam bores plus the effects of weather conditions make the high-risk areas hard to define.

HIGH HUMIDITY INTERNAL ENVIRONMENTS
Processing plants and enclosed swimming pools can create an environment with high humidity which requires special consideration for material selection and maintenance.

HARSH INTERNAL ENVIRONMENTS
Some commercial or agricultural applications may create internal environments in which the build-up of pollutants or fumes is a potential source of corrosion. Sheds for intensive animal farming can create a particularly aggressive internal environment.

INDUSTRIAL ENVIRONMENTS
Environments close to corrosive industrial emissions that may be subject to heavy fallout require extra consideration.

New Zealand has a wide range of environmental conditions.

This chart is intended as a guide only. Design, position, and other factors can influence which product is recommended. Please contact COLORSTEEL® or your supplier for further advice on the best COLORSTEEL® product to use. Warranty queries can be sent to warranty@colorsteel.co.nz

  • Eligible for a warranty.
  • Not eligible for a warranty.
  • 1 Against perforation as a result of corrosion.
  • 2 Covering the paint surface against flaking, peeling, and excessive fade.

MILD
Distance from coast: East 5km + | West 5km +

Typically starts 5 kilometers (depending on your location) from breaking surf such as is found on exposed coasts or greater than 1 kilometer from calm saltwater such as estuaries. Mild environments categorize the majority of New Zealand and are characterized by:

  • No salt deposits.
  • No smell of salt in the air.

MODERATE
Distance from coast: East 500m-5km | West 1-5km

Typically starts 500 – 1000 meters (depending on your location) from breaking surf such as is found on exposed coasts or in the immediate vicinity of calm saltwater such as estuaries. Moderate environments are characterized by:

  • Little or no salt deposits.
  • The occasional smell of salt in the air.

SEVERE Distance from coast: East 100-500m | West 500m-1km

Typically starts 100 – 500 metres (depending on your location) from breaking surf such as is found on exposed coasts, characterized by:

  • Light salt deposits.
  • A frequent smell of salt in the air.
  • In the immediate vicinity of large expanses of calm salt water such as harbour foreshores.

This environment may be extended inland by prevailing winds & local conditions.

VERY SEVERE
Distance from coast: East 25-100m | West 50-500m

Typically starts 25 meters from the high-water mark on the east coast and 50 meters from the high-water mark on the west coast, characterized by:

  • Heavy salt deposits.
  • The almost constant smell of salt spray in the air.
  • Close to breaking surf such as is found on exposed coasts.

For anything within 100 meters of a salt water body, please contact COLORSTEEL® for confirmation of your warranty. This environment may be extended inland by prevailing winds & local conditions.

EXTREMELY SEVERE
Distance from coast: East 0-25m | West 0-50m

The environment typically starts 0 meters from the high-water line on both coasts with the following conditions:

  • Very heavy salt deposits.
  • The constant smell of salt spray in the air.
  • The immediate vicinity of breaking surf and offshore construction such as on jetties, wharves or breakwaters.

For anything within 100 meters of a salt water body, please contact COLORSTEEL® for confirmation of your warranty. This environment may be extended inland by prevailing winds & local conditions.

MAXIMUM
Superior protection for Mild inland environments to Very Severe coastal environments.

ALTIMATE®
Ultimate protection for Extremely Severe marine and breaking surf environments

NOTE: Buyers and users of New Zealand Steel Limited products and services must make their assessment of the products for their own conditions. All queries regarding product specification, purpose or application should be directed to New Zealand Steel Limited, phone 0800 697 833. New Zealand Steel Limited reserves the right to modify products, techniques, equipment and statements to reflect improvements in the manufacture and application of its products. The information contained in this brochure is accurate as at June 2024 and supplied without prejudice to New Zealand Steel Limited’s standard terms and conditions of sale. In the event of a conflict between this information and the standard terms and conditions, the standard terms and conditions prevail. COLORSTEEL®, Maxam®, Altimate® and Dridex® are registered trademarks of New Zealand Steel Limited. Copyright© New Zealand Steel Limited, June 2024. 957639

References

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