Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach.
Will oxygen bleach kill algae on roof.
Take a scrub brush lightly scrub the shingles.
A safer alternative is oxygen bleach.
Then once the shingles are clean you go ahead and take a hose and just rinse the roof off.
Algae mold mildew moss and dirt are often attracted to shingles.
A mixture of trisodium phosphate tsp bleach and water will also remove stains.
Oxygen bleach fill a.
You can clean roofs with oxygen bleach but it can be challenging.
Never use undiluted bleach on walls.
To remove lichen and moss from the roof try the least toxic method for moss and lichen removal first oxygen bleach before moving on to a harsher method chlorine bleach.
Chlorine bleach is very effective at removing roof moss and algae but it s not that environmentally friendly.
Oxygen bleach however will kill the moss without harming your roof.
It does its best to kill it and take away the stains.
Spray on more if needed.
If you want to try using bleach without other detergent dilute it with at least four parts water.
Follow this by spraying another coat of the oxy bleach onto the darker stains.
Keeping roof shingles clean will not only enhance the overall look of your home but can also protect the shingles from damage caused by moss and mildew.
Apply one coating of oxygen bleach to the darkest stained areas first then coat the entire shingled surface with the spray.
The biggest problem is that it s dangerous working up on a roof.
The oxygen bleach starts to go ahead and attack the roof algae.
I prefer to apply it with a garden hand pump sprayer to the algae covered surfaces.
Mix 2 3 cup of powdered household cleaner 1 3 cup of powdered laundry detergent 1 quart of bleach and 1 gallon of water.
You can safely apply this mixture to exterior walls vinyl siding and roof shingles.
Causes moss fungus and algae flourish on rooftops in areas of the country that receive high rainfall and have high humidity.
Allow the oxygen bleach to soak on the algae for at least ten minutes making sure it doesn t evaporate.
If your roof gets very mossy and you need to clean it frequently chlorine bleach really takes a toll on your roof.
To clean off the algae all you have to do is mix powdered oxygen bleach with warm water mixing it until the powder is dissolved.
When applying the spray to the shingles spray the bleach and water mixture so that it flows down the roof rather than up.
Apply more solution if you have to to get a nice workable solution.