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American Knight wrote:

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 A customer e-mailed me and informed me that "We just made it to the house and I am a little concerned.  It looks like orange clay is coming off the roof at a pretty good rate.  Is that normal after a power wash?" Of course the tile roof was chemically cleaned and not power washed. Any help with responding would be appreciated.

 

Thank you,

 

Bobby  

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 This is very normal, and will stop after a few good rains, leaving a beautiful clay tile roof behind.

Not to worry! 

Roof Cleaning Palm Harbor FL 727 543 3276 wrote:

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Exactly what Chris said. It is mainly oxidation that is coming off along with the dead mold residue. They will be ecstatic after a good rain or two once the true color is revealed.

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 Larry, at the Bayou Club in St Pete, we did those clay roof condo's in there, with a black asphalt parking lot, and downspouts.

That red clay came down the downspouts, on the black asphalt parking lot, and looked terrible!

However, after a good summer thunderstorm, all was forgotten, except how nice the clay tile roofs looked.

Fred Flemings BBQ was close by, and I ate good, on that job!