The Georgetown brochure says the roof is laminated fibreglass...........I thought they were rubber, or a rubber compound.
Anyway.....what's the brand of choice when it comes to cleaning?
RV tips have indicated to rinse the sides of the RV before and rinse/wash after cleaning the roof because the residue can leave stains.
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Ken and Terry
2018 Sunseeker 2430S-CD, nicely modified and carried by a 2017 Ford E450 Sport
Former Georgetown 330TS owner for 10 years with more mods than I can count, pushed by our 2017 GMC Terrain