Showing results 1-11 of 11

Corroded metal roof flashings

  • Air-borne salt, dust or dirt accumulating under flashings

    How to repair

  • The paint finish has deteriorated, exposing steel 

    How to repair

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Profiled steel cladding – corrosion: white rust

  • Corrosion of the zinc when water is trapped between sheets at laps and joints, or during storage prior to installation

    How to repair

  • Insufficient rain washing 

    How to repair

Corrosion: red rust on galvanised mild steel cladding

  • Galvanised coating has eroded to expose bare metal

    How to repair

  • Profiled metal cladding is in contact with or has run-off from cedar or redwood, or timber treated with copper-based preservative treatment 

    How to repair

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Red rust on zinc/aluminium or aluminium/zinc alloy-coated steel

  • Corrosion of the steel when zinc/aluminium alloy coating has eroded to expose the steel

    How to repair

  • Cladding material in contact with or has run-off from cedar or redwood, or timber treated with a copper-based preservative treatment 

    How to repair

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Zinc cladding – dents/impact damage

Zinc cladding – uneven colour

  • Parts of the wall area are more exposed to the weather or rainwashing that slows the development of the traditional zinc oxide on the surface

    How to repair

Zinc cladding – small holes appearing in the zinc

Zinc cladding – fingerprints

  • Oil from the skin left on the surface of the zinc

    How to repair

Zinc cladding – scratches

  • Scratched during installation or by occupants working in the vicinity of the zinc

    How to repair

  • Scratched by plants

    How to repair