Power washing the tiles will remove fines in the concrete which will affect the lifespan of the tiles.
Power washing asbestos roof tiles.
Most are simply diluted bleaches that kill moss on contact resulting in it detaching from the roof surface and falling into the gutters.
Remove any biological growth such as moss and fungus from the surface of the siding.
All of the waste removed from the roof must be placed into designated asbestos bags and disposed of properly.
You can power wash any loose paint or simply scrape and remove any loose paint lightly with a wire brush.
While wetting the material something that would naturally occur during the power washing of the cement asbestos roof surface would be expected to reduce the airborne level of asbestos during the actual washing process although when properly peformed wetting to control asbestos particle release includes the addition of a wetting agent to the spray before it is applied.
Heavy growth should always be removed manually prior to using water or steam as this reduces the amount of asbestos fibres contained in the washing slurry.
Pressure washing in which highly pressurized water is sprayed on the roof to remove any mold algae dirt or grime and chemical cleaning sometimes called soft washing in which chemicals are the main thing that are removing those harmful things from your roof.
The condition you described is unsafe leeper explained.
Then either prime and paint or simply paint brush roll spray.
Since asbestos causes mesothelioma homeowners should consider the health concerns before hiring a company or performing the task themselves.
Cleaning an asbestos roof can be dangerous if not done properly.
How to clean asbestos siding.
Mix a mild detergent such as tide with water to make a cleaning solution.
Asbestos shingles should not be power washed there are many other aspects of this topic to discuss.
Place the detergent in the bucket and.
Then as long as your using a lower pressure wand with the fan spray you will be fine.
Mix one part bleach and three parts water and spray.
This should be done with a scraper and stiff hand brush.
Power washing of asbestos wall tiles can be done but its condition must be considered first.
As a manufacturer of concrete roof tiles we would not advocate power washing or recoating tiles as this would invalidate any guarantee.
The two main methods for roof cleaning are.
A number of fungicidal wash products exist on the market that can help clear moss and other fungal growth from asbestos roofs.
If there is fraying on the edges of the tiles the answer is no.