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Gap between bottom aluminium window flange and cladding sealed

  • It was not installed correctly when constructed – the gap has been required under E2/AS1 for building work since 1992 to allow draining and drying around the window

    How to repair

Aluminium window flange is fitted tightly to direct-fixed cladding

  • It was not installed correctly when constructed – E2/AS1 for building work since 1992 has required that the window is installed with a 5 mm gap between the back of the flange and the cladding – the gap can be sealed down each side (jamb) of the window and left open across the sill

    How to repair

Leaking through stucco

EIFS – leaking through cladding

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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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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Aluminium interlocking plank cladding – dents/impact damage

Aluminium interlocking plank cladding – buckling

Aluminium interlocking planks – chalking of factory finish

  • Effect of weathering – chalking will be more visible with darker colours

    How to repair

Aluminium interlocking planks – fading of factory finish

  • Effect of weathering – darker colours are more prone to fading 

    How to repair

Aluminium interlocking plank cladding – surface pitting