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 This is no way to clean a roof.  It is a surface cleaner and its very dangerous. Trying to hold 38 pounds of surface cleaner up, can pull the ends off the hose, streches the hose and can cause it to bust. Change the tips out to such a low preasure it wouldnt spin. If the hose was to come off, it would cause damage to the property, also hurting someone in th process. Its best to try and advoid walking as much as possible on the roof, using the surface cleaner, you are also walking more than you should on the roof.

not to mention with pressure washer the hose is always tring to "run away" back toward the machine so your always fighting with it or have it curled and twisted around your feet. I've been pressure washing for about 6years  and had looked at this item, Didn't buy due to pressure and if you look at the roof in the demo it still has very noticeable streaks. 

  Mosmatic makes one called Mosmatic roof cleaner, sells for about 900.00 and yes its dangerous and slow

James,
I appreciate the offer, but I already did the roof. It was just short of 6,000 square feet. It took me about 4 hours. There was soooooooo much stuff to have to water down on this property that I spent more time waiting to spray the roof while the ground guys were wetting everything down. They have a huge synthetic deck and extensive landscaping.

I gave this customer some references to call and one of my references called me to tell me that this customer recieved another estimate at more than 3x my price. I couldn't believe that I was that far off on my price. I was charging $.20/square foot and I started frantically doing my math again to make sure I was correct with my estimate. After taking a few deep breaths and realizing that I was right where I was supposed to be, I got the job and did it this past weekend. After the job was completed, I asked the customer what other companies they called for estimates. She gave me the name of the other company she called. I checked them out on the internet and found the roof rover on their roof cleaning home page.

That thing looks dangerous as hell doesn't it? I can't believe that two construction companies that replace roofs use these tools to clean shingles! If anyone should know what not to use on shingles, it should be a roofing company! I'm a small time operation still, but these companies are my main competition. As long as I get the chance to educate my customers, I shouldn't have a problem getting business from them. I'm even considering raising my pricing because they have set the market sooooo high!

Brian

That's the perfect machine for a roofing contractor to use!! That way they destroy the roof, blast all the granules off, and then reshingle soon after. One slip, it's gonna hurt!! OSHA would love to see this in action.

I saw this contraption at a power washing convention.  The salesman was trying to convince me that it would clean tile roofs easily.  I can only imagine how many tiles they break and tips & bars on the machine they have too replace.

Brian,
Most roofing contractors don't have a clue what the algae is or how to get rid of it, they are more interested in selling a new roof. These people won't last long in the roof cleaning business.

We don't like using telescoping wands but their is a time and place to use them.

That's exactly what you use isn't Mike D? Just messing man. For proper safe roof cleaning in Louisville, KY call Mike Dennis at Exterior Cleaning Solutions.

We have a lady here in town that uses a pitch witch. Shes tries to charge about 3 times what the proper going rate is, which is good for me, because most of my customers don't get sticker shock when they see the bid.