While copper is more toxic to algae galvanized sheet metal is much less expensive.
How to kill algae on roof shingles.
Roof algae are.
Put on rubber gloves and a breathing mask before proceeding you so you can.
Oxygen bleach does not harm vegetation.
People who live in all parts of the nation and have roofs made from all sorts of materials wood metal asphalt clay or concrete tiles etc.
Those places that receive more rainfall and have sustained high levels of humidity have more moss and algae growth as the moss and algae need water to grow and multiply.
Allow the solution to soak into the shingles for at least 15 minutes.
Any chlorine solution that drips or is rinsed off the roof can kill your landscaping.
Working on a sunny day will cause the cleaning solution to evaporate in seconds or a few minutes.
We ll explain more of that in a bit.
That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles.
Step 4 take precautions.
To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.
Never use a.
If you re trying to sell your home you may run into issues if you have roof algae.
The only way to take care of it is to use a high base chemical solution like zinc sulfate.
Step 3 check for cleanliness and rinse.
This is the only safe way to effectively remove algae and moss from roof shingles.
8 ways roof algae can affect your roof.
If chunks of algae or moss or heavy stains remain on the surface after rinsing let the roof dry then spray on the bleach solution again.
Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
To be effective 2 4 of metal should be visible on the roof.
You can try brushing off algae and moss with a brush or broom with medium stiff bristles but don t scrub too hard.
Cleaning step 2 make and apply the bleach solution.
To keep algae from coming back once your roof is clean install a strip of copper or zinc coated sheet metal along each side of the roof just below the ridge.
You don t want to separate the mineral granules from the shingles.
Most homeowners only realize they have.
Can have moss and algae accumulate on their roofs.
It s best to clean a roof when it s cool and the sky is overcast.
Softwashing to remove roof algae moss we use a softwashing technique at sherwood roof cleaning power washing to clean roofs here in fairfield county.