I'd say its more of a maintenance plan than a warranty, but the wording makes no sense. Basically clean it every few years and then you never clean it again? Lol
They promote one initial cleaning with roof restore and then treatments as a preventative program with roof a cide, there after. That is how they Get repeat business, with a prevention treatment every year or Two. Did I mention the stuff costs about .25-.30/sf for preventative treatment. It is marketing angle they stand by
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John Aloisio - Owner
The Roof Wizard - Non Pressure Roof & Exterior Cleaning