Showing results 1-12 of 117

Rust stains on concrete/concrete block foundation walls

  • Poor quality concrete absorbing water that rusts the reinforcing, which in turns causes the concrete to spall or crack, allowing in more water 

    How to repair

  • The reinforcing was installed too close to the outer surface of the concrete

    How to repair

  • View all repairs

Framing outline is visible on the cladding on cold mornings

  • Condensation is forming on cladding where there is insufficient or no insulation – when walls are uninsulated or have insufficient insulation, the area of cladding between the wall framing may become colder than where the cladding is fixed to the framing resulting in condensation forming on the cladding in a pattern. 

    How to repair

  • Condensation forming at the framing locations when the wall is well insulated - this means that, due to thermal bridging, the framing is colder at the framing locations than where there is no framing, so moisture condenses at the framing locations 

    How to repair

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

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

Painted timber weatherboards – peeling or flaking paint

Painted timber weatherboards – bubbling or blistering of paint

  • Loss of adhesion due to excess moisture in substrate

    How to repair

  • Poor initial substrate preparation

    How to repair

  • View all repairs

Timber weatherboards – joints opening

  • Thermal expansion and contraction of timber

    How to repair

  • Timber swelling/shrinkage caused by moisture absorption into end grain if joints were not adequately primed before installation and painting or staining

    How to repair

Paint failure at joints and external corners of timber weatherboards

Cupping of timber weatherboards

Rot in timber weatherboards

  • Timber is or has been continuously damp

    How to repair

  • Timber was inadequately treated – radiata pine must be treated to H3.1 if painted and H3.2 if installed unpainted or stained

    How to repair

  • View all repairs