Sometimes there is a white residue left which is the by product of the water and oxygen reaction.
Sodium percarbonate roof cleaner.
Sodium percarbonate is great for applications with hot water such as mixed into the soap solution in a carpet cleaning machine or mixed with hot water to mop the floor.
Wearing gloves spread the sodium percarbonate by hand over the whole roof.
You are just spinning your wheels trying to get the job done.
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.
Sodium percarbonate is way to weak for roofs.
After about 15 minutes the roof will turn white as the water reacts with the sodium percarbonate.
Sodium hypochlorite sodium percarbonate or sodium hydroxide for roof cleaning by linda chambers soap warehouse from the may 2012 eclean the best method to clean roof stains caused by algae lichens moss.
Most products come with a chart that shows how much to use.
You should know that sodium hypochlorite is the chemical name for bleach.
The problem with sodium hydroxide is that if it is not completely removed from the surface even after it has dried it can be activated again and once wet continues its normal chemical reaction on petroleum based products.
To clean a roof without destroying the integrity of the shingles you need sh and a surfactant with no pressure.
Roughly a handful 50g will cover 1sqm.
Roof cleaning powered by oxygen release from sodium percarbonate solid hydrogen peroxide often called oxygen bleach although it contains no bleach.
Sodium percarbonate is good for cleaning decks and fences.
Sodium percarbonate is really easy to use for cleaning stain removal and laundry.