Painted Roof Cleaning

Benefits Of Treating Pre-Painted Tiles

Pre-painted tiles can be kept clean without the use of pressure cleaning. Applying Moss Roof Treatment will kill any moss, mould and lichen and prevent it from getting worse. It will then wash away overtime, avoiding costly repairs that pressure cleaning can cause. It is an ideal way to clean a pre-painted tile after other roofing repairs have taken place without having to fully restore the roof.

Pre-Painted Tile Issues

Pre-painted roofs and tiles come in many shapes and sizes and various levels of good tiles regarding the strength. High pressure cleaning can be harsh on the surface and strip away and disturb the painted tiles, causing a mess and exposing the tile underneath. Moss roof treatment is a softer application applied under medium spray pressure; this avoids disturbing the integrity of the tiles surface. There are several roof tiles that are thinner and are not ideal for walking on, so this is an option as we apply from ladders around the perimeter of the roof line.

Many restored roofs are still in great condition apart from the moss that may grow on the tiles, so this is a way to prolong the restored roof life.

Soft Application & Prevents Regrowth

Moss Roof Treatment is perfect for pre-painted tiles due to its soft application that kills the moss spores and black mould that grows on the tiles surface. Some roofing tiles have rough front edges that allows dirt to stick to causing dampness and that is where moss growth can occur, our Moss Roof Treatment gets onto all the front surface, tile overlaps and tile humps to kill these spores to prevent future growth.

Moss Treatment Works Alongside Other Roof Works

After having roofing repairs to the pointing or valley work, a moss treatment is an ideal way to kill the moss, lichen, and black mould to prevent having to restore the roof again.

A clean roof helps to make sure that the water is diverted/running down the roof into the gutters and not into the roof cavity.

Building an extension on the home that has a pre-painted roof surface can be costly and sometimes the roof is overlooked and left last, by treating the roof at the start of the home renovations will ensure that the roof will be clean and look tidy at the end of the renovations.

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Benefits of Moss Treating Painted Tiles

A soft application on the surface which avoids causing damage to the tiles surface.

Does not disturb the colour on the tiles surface.

Will not disturb the pointing on ridge caps.

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

Ideal for softer tiles, as the treatment is applied by ladders around the perimeter.

Water based solution gentle on the roof tiles and house gutters.

Solar Panels or roofing repairs can be installed and carried out after moss treatment.

Avoids water damage to ceilings as no harsh high-pressure cleaning is needed.

Does not disturb the paint on the tiles as the application is applied on a medium pressure.

Guaranteed for 3 years that no new growth will occur, most treatments 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 crumbles away and washes away into the gutters.

It will break down the black staining on the tiles to show the tile colour without causing any damage to the preexisting painted surface.

Once the moss is dead on the roof 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

Pre-Painted 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:

Ridge capping repairs.

Plumbing Works to chimney flashings etc.

Replacement of broken tiles.

Emergency leaking roof repairs.

Replacement of gutters and downpipes.

Solar Panel Installation and Repair.

Roof additions installed.

Flashing repairs around chimney.

Installation of skylights.

Replacing valley irons.


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