Mold stains can form on roof shingles that are in permanent shade.
Mold in roof shingles.
Black mold stains streaks and clumps of moss growing on the roof look unsightly.
Step 4 take precautions.
Mix up your cleaning solution.
Cleaning step 2 make and apply the bleach solution.
Protect against regrowth if you look around your neighborhood you might notice spots that are algae free on the roofs of otherwise blackened shingles.
You may also worry that mold growth will harm your asphalt shingles and reduce the roof s lifespan.
In hot and humid climates like tampa algae growth on asphalt shingles can be a real problem.
Step 3 check for cleanliness and rinse.
Not to worry though because you can clean the mold off with basic household bleach and save your roof long before you need an expensive replacement.
Never use a.
Damaged flashing gaps or holes in the flashing can also serve as entryways for water into your attic.
This will usually occur under chimneys or metal flashing and is because metal particularly copper is toxic to the algae and mosses that frequent roof shingling.
No one likes having to buy a new roof much sooner than anticipated.
Scrub away the thickest buildup.
Spray the entire roof thoroughly.
Installing zinc strips under a row of shingles near the ridge of the roof will prevent mildew from forming.
Spraying the roof 1.
Missing shingles a heavy storm can blow shingles off a roof especially on houses where the shingles have been weakened due to the growth of moss mold mildew or algae.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside.
Use a long handled brush to scour the surface of the shingles and loosen stuck on.
The mild chemical reaction caused by rainwater coming in contact with the zinc inhibits the growth of mold and mildew.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
Allow the solution to soak into the shingles for at least 15 minutes.