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Discussion Starter · #1 ·
Roofs all over the country are being replaced due to ugly black
streaks and stains many years before it is actually necessary. Many
homeowners believe the only way to rid their roof of these stains,
moss or algae is to replace it but, this is not the case.
What causes the black streaks?
The black streaks you may see on your roof are actually a biological
growth that should not be ignored. If left untreated, the black
streaks will continue to grow into moss or lichen which has a root
system that will destroy the shingles. Asphalt shingles are made using
fillers such as limestone and this limestone becomes “food” for the
algae to live on. You will probably notice this type of growth on the
north facing side of your home because there is not enough sunlight
throughout the day time hours on the north side to stop the continued
growth of the algae. It is however possible to spread to other parts
of your roof or even to your neighbor’s roof because it is also
airborne.
Why clean your roof?
Roof cleaning will prevent this type of destruction to your shingles
and prolong the life of your roof, at a fraction of the cost of
replacement. Our roof cleaning system is both safe and effective. We
use a non pressure cleaning system that presents no more force to your
shingles than a rainstorm. In addition, the cleaning solution we use
is safe for the other surfaces of your home as well and is the only
product that is recommended by the Asphalt Shingle Manufactures
Association for this type of cleaning.
If you have a dirty roof and are thinking of replacing it, consider
the more cost effective option to remove the stains-Roof Cleaning. We
can clean your roof for a fraction of the cost of replacement.
Call Roof Cleaning by A&E today to schedule your free estimate. (717) 324-4208
 

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Hey,
Thanks for such information and according to me it is really necessary to clean roof otherwise it may be harmful for you and your house as it can damage root of house. Your suggestion are really great and we should keep care about this. If a person is feeling that his house's roof is looking dirty then he must go for washing and cleaning his roof.
 

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The black stains are also very likely to harbor a number of molds or fungi. Unlike algae, the fungi on our roofs lacks chlorophyll and are unable to manufacture food from raw materials. The algae must get nutrition from some form of organic matter. To thrive, they also require a warm, humid environment.

Fungi normally begin their life cycle as an airborne spore that settles on roofs. The spores on the northern exposure of the roof stand a better chance of survival because that portion of the roof is the last part to dry after a rain or morning dew. This raises the humidity on the surface of the shingle, thus creating a perfect feeding and breeding ground.
 
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