Colorbond Roof Cleaning

Benefits Of Treating Iron / Colorbond Roofs

Iron Colorbond roofs are one of the better roof surfaces to have, due to the low maintenance required and they look great and have modern lines. However, moss, mould, lichen, and algae very commonly grow on Iron / Colorbond roofs, especially the lighter coloured surfaces. By moss treating instead of pressure cleaning, we are able to keep the roof cleaner for longer without causing unnecessary damage and pre-aging the roof.

Roof Issues

Moss & lichen growth can lead to issues on the roof such as staining where the moss growth has occurred, it can also lead to restricted water flow off roof, especially on lower pitched roofs. So, it is important to get a moss treatment to prevent further regrowth. Colorbond/Iron roofs come in all sizes and designs, this is an ideal way to have a clean roof on steeper more difficult roofs.

Soft Application & Prevents Regrowth

Moss Roof Treatment is perfect for Iron Colorbond roofs due to its soft application that kills the moss spores and removes the black stain across the sheets. It is also a great option before or after installing solar panels.

Moss Treatment Works Alongside Other Roof Works

Colorbond Roofs are sometimes slippery when wet which makes it tricky to walk on for other tradesman so by killing the moss growth the surface will be safer to walk on along with normal safety requirements.

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Benefits of Moss Treating Iron Colorbond

A soft application on the surface which avoids causing damage to the Colorbond/iron surface.

Kills moss spores left by the moss to prevent new green regrowth.

Other roof works after application can be still completed.

Does not strip away the protective coatings and colourings to pre-age the roof surface.

Solar Panels can be installed after moss treatment.

Removes black stain across colorbond iron galvanised sheets.

Guaranteed for 3 years that no new growth will occur, most roofs generally last for 9-10 years before new growth can occur.

More affordable, good option if selling in the future.


Progressive Results After Moss Roof Treatment

What happens to moss after being moss treated:

Within the first 2-3 weeks the moss, mould & lichen changes to a yellow/brown colour signifying that it is dying/dead.

Slowly, more and more moss & lichen will begin to break down, wash away and reveal a cleaner surface.

It will further break down the black stains left behind by the moss.

Once the moss is dead, other roof works, such as screw replacement, solar panel installation and other repairs can proceed. The treatment will continue to break down the moss during and after any additional roof works.

Dying moss & spores
Moss flaking & breaking down
Black stain will be disappearing
Moss crumbing away

Iron / Colorbond Moss Roof Treatment Application

Moss Removal Before & After Results


Application Completed 11-08-2017


12 Months Later


Application Completed 21-09-2018


12 months later

Roof Repairs After Moss Treatment

Once moss treatment is completed, roof repairs can now be started, these include:

Replacing Rusted Tech screws.

Plumbing Works.

Replacing roof sheets.

Emergency leaking roof repairs.

Replacement of gutters and downpipes.

Solar Panel Installation and Repair.

Pool heating repairs.

Flashing repairs around chimney.

Installation of skylights.

Replacing valley irons.


Moss Roof Treatment is for those who just want to keep their roof clean!