Showing results 1-12 of 22

Cupping of stained or clear-finished timber weatherboards

  • Thermal expansion and contraction of timber

    How to repair

  • Swelling/shrinkage due to moisture absorption 

    How to repair

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Black staining on stained or clear-finished timber weatherboards

  • Mould growth on timber surface; occurs most commonly on south-facing walls

    How to repair

Deterioration of weatherboard surface under clear or stain finish

  • UV light deterioration

    How to repair

  • Cracking of the clear finish resulting in: moisture penetration and timber swelling mould growth loss of adhesion and flaking or peeling of finish 

    How to repair

Cracking/flaking of film on stained or clear-finished weatherboards

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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Erosion of penetrating clear/stain finish on timber weatherboards

Staining from run-off from cedar or H3.2 treated pine weatherboards

  • Leachate from cedar weatherboards or treatment chemicals 

    How to repair

Splits or cracks in stained or clear-finished timber weatherboards

Stained or clear-finished timber weatherboards too close to ground

Staining around nail holes in timber weatherboards

  • Rust staining from mild steel or hot-dip galvanised nails 

    How to repair

  • Staining from hot-dip galvanised, copper or aluminium nails in cedar (typically a teardrop-shaped stain)

    How to repair