Roof Cleaning Northern Virginia

Discussion in 'Power Washing' started by Roof Cleaning Virginia, Feb 22, 2011.

  1. Roof Cleaning Virginia

    Roof Cleaning Virginia LawnSite Member
    Posts: 177

    Here's one of the roof cleanings we did last week while the weather was warm. Can't wait for Spring!

    Roof Cleaning Fairfax Before.jpg

    Fairfax via Lift.jpg

    Roof Cleaning Fairfax After.jpg
     
  2. DQL10

    DQL10 LawnSite Senior Member
    Posts: 292

    What actually causes the black streaks on the roof?
     
  3. Roof Cleaning Virginia

    Roof Cleaning Virginia LawnSite Member
    Posts: 177

    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
     
  4. Don M.

    Don M. LawnSite Member
    Posts: 90

  5. Roof Cleaning Virginia

    Roof Cleaning Virginia LawnSite Member
    Posts: 177

    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.
     
  6. JCinNJ

    JCinNJ LawnSite Member
    Posts: 159

    looks good Ted, I like your truck, wish I had one

    Hey Don, do you use cougar paws?
     
  7. Certified MD Roof Cleaner

    Certified MD Roof Cleaner LawnSite Member
    Posts: 41

  8. Roof Cleaning Virginia

    Roof Cleaning Virginia LawnSite Member
    Posts: 177

  9. DQL10

    DQL10 LawnSite Senior Member
    Posts: 292

    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.
     
  10. Roof Cleaning Virginia

    Roof Cleaning Virginia LawnSite Member
    Posts: 177

    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.

    Woodbridge_Roof_Cleaning_Before.jpg

    Woodbridge_Roof_Cleaning_AFter.jpg

    Woodbridge_Aerial_view.jpg
     

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