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Old 02-22-2011, 10:38 PM
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Roof Cleaning Northern Virginia

Here's one of the roof cleanings we did last week while the weather was warm. Can't wait for Spring!
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Old 02-22-2011, 10:50 PM
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What actually causes the black streaks on the roof?
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Old 02-22-2011, 10:54 PM
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Technically it's a form of cyanobacteria although most folks in the industry, including the shingle manufacturers call it a blue/green algae (Gloeocapsa magma). Here's a better description: http://en.wikipedia.org/wiki/Gloeocapsa_magma
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Old 02-22-2011, 11:41 PM
Don M. Don M. is offline
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You couldn't walk that roof with a set of Cougar Paws?
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Old 02-22-2011, 11:45 PM
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Sure, or even without cougar paws on that one. But the bucket truck is my work truck - it goes to all jobs with me. So I market it and use it.
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Old 02-23-2011, 08:46 AM
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looks good Ted, I like your truck, wish I had one

Hey Don, do you use cougar paws?
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Old 02-23-2011, 09:51 PM
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Nice roof cleaning in Northern Virginia, Ted!!
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Old 02-24-2011, 10:17 PM
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Thanks JC and Chris.
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Old 02-27-2011, 06:48 PM
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Quote:
Originally Posted by Roof Cleaning Virginia View Post
Technically it's a form of cyanobacteria although most folks in the industry, including the shingle manufacturers call it a blue/green algae (Gloeocapsa magma). Here's a better description: http://en.wikipedia.org/wiki/Gloeocapsa_magma
Gotcha. My neighbor has that problem on his house but his is the only one and was asking me what it was and what caused it but I had no clue. Thanks for the link.
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Old 02-28-2011, 11:17 AM
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You're quite welcome. Here are some pics from another winter job we just did yesterday, this time in Woodbridge VA. There's a before and immediately after pic, plus an aerial pic. With the sun being so low in the sky this time of year, we do a final inspection from a higher elevation so we can see it clearly. The glare is fairly bad otherwise.
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