Quote:
Originally Posted by Travelin' Texans
IIRC they recommend a mild soap such as Dawn, Spic Span, Simple Green & a medium bristle brush.
Personally I used SG concentrate mix per instructions in a 1 gallon sprayer, sprayed roof, let soak for 10-15 minutes then scrubbed & rinsed throughly. I also wouldn't use bleach or any product containing bleach.
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Might want to pass those concerns on to the roof material manufacturer: