Always be on a dry section as the cleaning solution is slippery.
How to remove algae from roof shingles.
We ll explain more of that in a bit.
You do not want to be standing on a wet part of the roof as you clean.
Never use a.
Living things don t do well when exposed to sodium hypochlorite.
Step 4 take precautions.
On a molecular level it unfolds important protein molecules killing microbes almost instantly.
Cleaning step 2 make and apply the bleach solution.
A bleach and water solution is the best way to remove roof algae.
Allow the solution to soak into the shingles for at least 15 minutes.
Softwashing to remove roof algae moss we use a softwashing technique at sherwood roof cleaning power washing to clean roofs here in fairfield county.
Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
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.
In recent years roofing manufacturers have begun mixing copper granules into roofing products.
Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water.
How to remove and prevent black algae stains on asphalt shingle roofs algae resistant shingles.
No pressure washers please.
Algae stains can be removed by cleaning though they usually return.
Spray the oxygen bleach solution on the roof working in strips from top to bottom of the roof.
This is the only safe way to effectively remove algae and moss from roof shingles.
Put on rubber gloves and a breathing mask before proceeding you so you can.
Step 3 check for cleanliness and rinse.
You can also use oxygen bleach instead which is gentler on the asphalt shingles.
Laundry strength bleach is sufficient or you can opt for any of a number of proprietary roof cleaners some of which don t contain bleach lye or other potentially harmful chemicals.