Beating a Dead horse...Roof Cleaner\Conditioner

CW told me that if I don't get up there once a year it voids the roof warranty. So, I have to clean it and treat it every year to maintain the ten year roof warranty. And, I have to document that with receipts etc.. Based on what the guy that gave us the walk-around was saying I have little to no confidence that the warranties will be honored without lots of fussing and fighting if I need it in a few years.