Showing results 1-12 of 18

Staining of walls and/or eaves

Black staining on stained or clear-finished timber weatherboards

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

    How to repair

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

  • Leachate from cedar weatherboards or treatment chemicals 

    How to repair

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

Plywood cladding – staining around nail holes

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

    How to repair

Rust stains on stucco

  • Hairline cracking in the stucco admitting moisture causing corrosion of the reinforcing mesh 

    How to repair

Profiled metal roofing – staining

  • Run-off from lead flashings

    How to repair

  • Soot or particulate emissions from nearby chimneys or flues

    How to repair

  • View all repairs

Profiled metal roofing – swarf staining

  • Swarf (residual fragments of steel from cutting, drilling or grinding roofing sheets) have been left on the roofing or in gutters

    How to repair

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

Timber shingles/shakes – stained shingles

Staining from cedar shingles