I tried walmart bleach since it was.
Oxygen bleach painted metal roof.
Wet down the roof with plain water from the garden hose.
Then everbrite clear protective coating is applied to restore and protect the metal.
The oxygen breaks down organic stains taking your roof back to its original color.
You can also use oil based alkyd paint but.
It s also not uncommon for painted metal roofs to show more dirt on their surface than unpainted metal roofs and for painted roofs to be more difficult to clean.
I was worried about bleach harming the rubber washers on the screws that hold the roof on.
It is my experiment on the black mold on my truck s roof.
Follow this by spraying another coat of the oxy bleach onto the darker stains.
September 24 2017 at 7 21 pm.
When applying the spray to the shingles spray the bleach and water mixture so that it flows down the roof rather than up.
Roof cleaning powered by oxygen release from sodium percarbonate solid hydrogen peroxide often called oxygen bleach although it contains no bleach water activated roof wash ox is hydrogen peroxide based oxygen roof mold and algae cleaner that cleans using the power of oxygen for roof mold stain removal.
I was looking for a way to safely clean the metal roof of my house.
This releases the byproducts of oxygen water and soda ash that are non toxic and biodegradable.
Spray a generous coating of the oxygen bleach mixture onto the roof immediately.
Allow the oxygen bleach to sit on the roof for about 20.
Chemically oxi clean is sodium percarbonate hydrogen peroxide bonded with natural soda ash gets activated by contact with water.
What bleach does to your roof.
Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
It is this very oil tar and asphalt which protect your shingles from the elements.
Apply one coating of oxygen bleach to the darkest stained areas first then coat the entire shingled surface with the spray.
Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt.
The chalky oxidation can be washed off leaving a clean but dull and unprotected metal roof.