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Roof Shampoo Method vs Soft-Wash Method in Michigan

Steve VanOast

New member
Shampooing Method vs Soft-Wash Method in Michigan

This roof in Livingston County, Michigan was cleaned by a Shampooing Contractor one week ago today. After the roof was rinsed thoroughly by a heavy rain, we went over the entire roof with our chemicals. It was amazing to see all the growth that was untouched by their equipment.
The pictures below show the results once it was spray. Any left over growth turned white when it was instantly killed by our chemicals. You can even see the track and swirl marks their machine leaves behind.


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Dan Dykstra

New member
This is why they push their maintenance program so hard on their customers, even they know the cleaning they do is no good.