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ROOF ALGAE - Streaking and Staining

Does your roof look dirty or stained.  And maybe it's pretty new - might not even be over 3-4 years ago you had it replaced!  The culprit is ALGAE growing on the shingles.  The 'dirty' look on your shingles is NOT dirt, but rather a living organism that is growing, forming black discolorations that mask your shingle's color.  These streaks make your roof look old and worn.  This is particularly a big problem in our area (Coastal Virginia) where the humidity is high.  

Did you know you can "catch" it from a neighbor?
 Once it is established on an individual roof in a neighborhood, all homes in the area are susceptible to the algae growth.  The spores are spread by wind and carried from rooftop to rooftop.  As an airborne organism, it can affect entire neighborhoods. 

What can you do about it?  Well, you could have your roof pressure washed - BUT keep in mind, even low pressure washing will wash away a good bit of the granules on your shingles.  These granules are there to protect the asphalt from sun and heat.  At best it is a temporary solution and at worse it could ruin your roof. 

By far, the best solution is to replace your roof with our NEW shingles that have a  LIFETIME WARRANTY AGAINST ALGAE!  Our  NEW roofing products are protected by SCOTCHGUARD -which helps your roof stay clean and keep it's color.  In fact we are SO confident in our product keeping the algae growth off your shingles we offer the following warranty:  


What is in our NEW shingles that prevents the algae from growing? It's simple chemistry.  A optimum blend of 3M copper roofing granules uniformly manufactured into the surface of every shingle.  When the shingle gets wet, the copper leeches out onto the shingle and prevents algae from growing ensuing a streak-free surface.  IT'S THAT SIMPLE!  

Yes, they do.  The percentage of copper in their product is considerably less and not uniformly spread throughout the shingles. So where there is copper you will see clean shingles, and where it is not you will see dirty.  This creates the streaking effect seen on so many of the roofs in our area.  They also offer a lifetime warranty on their shingles - But I ask you -


Call us today for a FREE CONSULTATION regarding your roof.  Let us provide you with an FREE estimate for replacing that dirty look with new clean Architectural LIFETIME warranties shingles to give your home curb appeal again.

                                                                                          COASTLINE CONSTRUCTION LLC               
Licensed and Insured
Virginia Beach, Virginia

Actual photo of roof - 
Left side - no protection 
Right side - shingles featuring our unique SCOTCHGUARD protection

46 Comments to ROOF ALGAE - Streaking and Staining:

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robert on Friday, February 3, 2017 1:24 AM
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companies that write college papers on Wednesday, May 23, 2018 2:51 AM
It is true that algae is the primary suspect of roof rusting. I did not know that these algaes can transfer from roof to roof. I will definitely tell this to my neighbor. They are not cleaning their roof and you can find a lot of algae in their roof. Maybe some of them are being transferred to our roof that is why our roof is very dirty and rusty. I am interested in your roofing products that are protected by Scotchguard. on Wednesday, July 18, 2018 1:10 AM
Our house gives us the protection from the rain and the sun. We must be aware that we also need to take good care of it. Cleaning all the parts inside is not enough for it to stay strong in a long time. The outside part of it also needs to be clean. This blog helps us to be aware about the algae in our roof that can damage it and provide us information about how to prevent it. I hope that even once a year we can have this cleaning of our house to make it stronger.

writing essay on Monday, August 14, 2017 7:46 AM
Roof algae are the worst to look at. The growing algae give an ugly look to the roof and make it dirty. This problem is mostly visible in humid areas where moisture is high in the air. This is spreadable and provides damage to the bricks.
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Amy Anderson on Friday, September 15, 2017 5:09 AM
The developing algae supply an ugly look to the roof and make it dirty. This trouble is primarily visible in humid areas where moisture is high inside the air. this is spreadable and provides damage to the bricks.
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Roof algae is caused due to the collection of water at one place. The best method to prevent algae is to clean the gutters and make the roof slanting so that water will not remain there for long time. This can help to prevent algae growth and you won't have to call for roof repair.
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