ZINCALUME®

New Zealand Steel introduced ZINCALUME®, zinc/aluminium alloy coated steel in 1994 and it's been popular with architects and homeowners ever since for its durability and aesthetic qualities.

Zincalume® product uses:

  • Roofing and Flashings
  • Wall Cladding
  • Gutters and Downpipes
  • Fences
  • Garage Doors
  • Garden Sheds

Zincalume® coating:

The ZINCALUME® coated steel has been formulated to give a significantly longer service life than a galvanised coating. This is of particular value in New Zealand where the prevailing winds carry corrosive salt laden air many kilometres inland.

The ZINCALUME® steel coating combines the corrosion protection of aluminium with the sacrificial protection of zinc to create an alloy that's ideal for roofing and cladding in New Zealand's demanding environment.

Molten Zinc/Alum

ZINCALUME® coated steel is produced by a continuous hot dip process similar to that used to manufacture galvanised steel. While both ZINCALUME® steel and galvanised steel products have a steel base, galvanised steel has a coating of 100% zinc, whereas ZINCALUME® coated steel has an alloy coating of 43.5% zinc, 55% aluminium and 1.5% silicon. ZINCALUME® coated steel conforms to AS1397:2011.

 

ZINCALUME® is Living Building Challenge Red List Approved 

 

Residential ZINCALUME® Warranty   ​

    

Very Severe ENVIRONMENTS

(Typically starts 25m from the high water mark on the east coast and 50m from the high water mark on the west coast)

SEVERE ENVIRONMENTS

(Typically starts 25m from the high water mark on the east coast and 50m from the high-water mark on the west coast)

MODERATE Environments

(Typically starts 500 – 1000 metres from breaking surf such as found on exposed coasts or in the immediate vicinity of calm
saltwater such as estuaries)

Roofing

Wall Cladding

Gutter Downpipes

Fascia

Roofing

Wall Cladding

Gutter DownPipes

Fascia

Roofing

Wall Cladding

Gutter Downpipes

Fascia

ZINCALUME®  

Residential Warranty

NOT RECOMMENDED IN THIS ENVIRONMENT                 NOT RECOMMENDED IN THIS ENVIRONMENT        15 Years  15 Years 10 Years  10 Years

Maintenance 

 Rain washing Manual washing every 6 months Manual washing every 3 months  Manual washing every 3 months 

 

This chart is intended as a guide only. Design, position and other factors can influence if Zincalume® is suitable for your project. Please contact New Zealand Steel or your supplier for further advice. Warranty inquiries can be sent to nzs.warranty@bluescopesteel.com.

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