This is one of the few ways that you can damage it.
Pressure wash fiber cement roofing.
The water pressure will remove the granules that are important for protecting your roof.
The two main methods for roof cleaning are.
The power of pressure washers can be too much of a good thing.
If you feel that you need to use a pressure washer especially on harder to reach locations only use it at a low pressure under 1500 psi with a wide tip.
We do not recommend pressure washing your roof covering.
This can be a great quick way to clean siding but power washing can damage fiber cement siding.
If you are not experienced with power washing consider hiring a professional.
If your moss is on decks concrete brick or siding you can use a pressure washer to remove it.
Use a side to side motion when cleaning horizontal planks.
From there rinse the area with clean water.
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.
In fact pressure washing fiber cement siding is one of the only ways you can damage this durable type of siding.
Pressure power washing.
If using a brush brush the siding s surface dust or dirt then rinse the area with a garden hose.
Once you squeeze the trigger the powerful recoil on the spray wand can throw you off balance and off of a ladder.
Not to mention using a pressure washer from a high place is dangerous.
After applying the roof wash the correct method is to be up on the roof using light pressure aiming down the roof at all times at the angle of the roof this way there is never direct pressure with the roof.
Do not use a high pressure hose to clean fiber cement siding.
Instead use a soft cloth and soft bristle brush to clean your siding as needed.
Cleaners before spraying moss there s a wide variety of recipes for killing moss including bleach and water vinegar and water or soap and water.
Wear safety goggles and gloves gather your equipment and get started.
Only use a pressure washer at a distance of 6 feet or more.
If using a soft cloth wet the cloth then wipe the area in a side to side motion in the direction of the plank shingle or panel siding until clean.
Be sure to completely rinse it free of any soap residue.
Never pressure wash your roof if you have asphalt shingles.
In a response to an email enquiry made in february 2014 marley made the following statement about one of their popular concrete roof tiles the emphasis capital lettering is theirs.