When that happens it is generally caused by mildew algae mold or dirt stains.
How do you remove mold from roof shingles.
Not only is it unattractive it can actually shorten the life of your shingles so you really should get rid of it.
You could use regular household bleach to remove the algae from your roof.
Spray wash the roof with a 50 mix of water and bleach to get rid of the algae.
It is not uncommon for roof shingles to turn black over time.
How to remove algae from asphalt shingles.
They re likely to damage the shingles.
To remove the algae from asphalt shingles you have a few options.
In hot and humid climates like tampa algae growth on asphalt shingles can be a real problem.
Your shingles may be old and in need of replacement or just in need of waterproof coating to help prevent them from getting too wet.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
You may also worry that mold growth will harm your asphalt shingles and reduce the roof s lifespan.
Black mold stains streaks and clumps of moss growing on the roof look unsightly.
To make sure you re getting your money s worth hold off until the shingles you have in place begin to wear out.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Apply a storebought or diy cleaning solution to remove the moss.
If you have a consistent problem with mold growth on your roof consult a roofing professional.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
No pressure washers please.
Talk to your contractor or roofing expert about the cost of installing mold resistant shingles.
The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
These black streaks are unsightly and can diminish the appearance of the entire exterior of the home.
Mold stains can form on roof shingles that are in permanent shade.
Remove black stains from roof shingles to preserve the appearance of your home s roof.
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.
There s no sense in replacing perfectly good roof shingles.