Moss and algae breakdown these protective layers shortening the lifespan of your roof.
Roof algae bleach.
This creates a false foundation underneath the shingles of your roof.
Roof cleaning using chemicals like chlorine bleach and tsp trisodium phosphate as a cheap roof cleaning spray to make your shingles look new again is not advisable.
No pressure washers please.
Use an extra long paint stirrer or.
Pour the contents directly from the.
Fill the reservoir on a garden sprayer with the cleaning solution.
The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water.
The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
It does its best to kill it and take away the stains.
Bleach is particularly bad because it will get underneath your shingles and leave behind a tough dirty residue as it dries.
Which is exactly why you want to remove moss in the first place.
They re likely to damage the shingles just be sure to wet your foundation plantings first and rinse everything in clean water when you re done.
Take a scrub brush lightly scrub the shingles.
How to use bleach to clean a shingle roof.
The oxygen bleach starts to go ahead and attack the roof algae.
Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.
Roof stains return in as few as 9 months and the roof mold is worse than before.
It s really that simple.
Bleach and other detergents however do the same thing.
Then once the shingles are clean you go ahead and take a hose and just rinse the roof off.
Apply more solution if you have to to get a nice workable solution.