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No gap between bottom of cladding and waterproof deck

  • It was not installed with a sufficient gap when constructed

    How to repair

There is no gap between the bottom of the cladding and a window/door head flashing (gap should be 5 mm)

  • 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 from behind the cladding

    How to repair

Gap between bottom of cladding and head flashing 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 from behind the cladding

    How to repair

Stain failure at base of timber weatherboard walls

  • Cladding covered by soil/foliage

    How to repair

  • The back surface of boards is too close to the ground, not sealed and absorbing moisture

    How to repair

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Plywood cladding – paint failure at base of walls

  • Cladding covered by soil/foliage

    How to repair

  • The back surface of boards too close to the ground, not sealed and absorbing moisture

    How to repair

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Leaking through stucco

EIFS – leaking through cladding

Profiled metal roofing – staining

  • Run-off from lead flashings

    How to repair

  • Soot or particulate emissions from nearby chimneys or flues

    How to repair

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Rust on zinc/aluminium or aluminium/zinc alloy-coated steel roofing

  • Erosion of or scratching damage to the zinc/aluminium or aluminium/zinc alloy coating, exposing the steel

    How to repair

  • Lack of rain washing. Rain washing tends to be less effective on roofs with less than 15 degrees slope

    How to repair

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Roof leaks (visible as wet framing or water path stains)