Surface pitting of profiled metal aluminium roofing

Cause

The environment is corrosive (near the coast or industrial areas)

Repair

  • wash surfaces that do not get rain-washed with water and a soft brush
  • paint the roofing – obtain advice on suitable paints for aluminium roofs
  • replace the roof if it is at the end of its serviceable life

Cause

Surfaces (including the exposed underside of the roof at the eaves) are not effectively washed by rain. Rain washing tends to be less effective on roofs with less than 15 degrees slope.

Repair

  • wash surfaces that do not get rain-washed with water and a soft brush
  • paint the roofing – obtain advice on suitable paints for aluminium roofs
  • replace the roof if it is at the end of its serviceable life

Cause

Bird droppings are not  washed off by rain

Repair

  • wash surfaces that do not get rain-washed with water and a soft brush
  • paint the roofing – obtain advice on suitable paints for aluminium roofs
  • replace the roof if it is at the end of its serviceable life