The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
Removing fungus from roof shingles.
Just because you can t see it however doesn t make it any less dangerous.
A mixture of trisodium phosphate tsp bleach and water will also remove stains.
You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller.
Don t use a pressure washer to clean or rinse your roof.
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.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
Mold stains can form on roof shingles that are in permanent shade.
It s easy to let a mold problem sneak up on you on in out of the way places like the roof of your home.
Adjusters know it can take 2 3 years for hail damage to become appearant so usually honor the claim.
How to clean mold off a roof.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
Removing moss mildew fungus and associated stains on roofs roof cleaning is a topic that draws yawns in new england but causes shudders and screams of agony from florida and points south where vegetable life seeks world domination.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside not to worry though because you can clean the mold off with basic household bleach and save.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Working on or near a roof is dangerous particularity when it s wet and slippery.
At best slimy black mold.
If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.
Apply a storebought or diy cleaning solution to remove the moss.